Technical field
[0001]
The present invention is, management device, management method, a program.
BACKGROUND
[0002]
Recently, transmitter such as an IC (Integrated Circuit) tag is attached to various managed. Transmitting device transmits a signal, which contains a unique identifying ID (for the Identification) a transmitter for the signal. Reading transmitter receives outbound signals device, by detecting the ID receiving the signal, can acquire information such as the position of the managed mounted the transmitter. It is possible to manage the management target by using information such as this position.
[0003]
　Meanwhile when fitted with a transmitter in each mass managed, the reading device for reading a signal transmitted from their transmitter becomes number required. Reception accuracy of the oscillation signal by the reading device is sometimes deteriorated, and can be determined easily deterioration apparatus has been desired. Incidentally Patent Documents 1 to 3 have been disclosed as a related technique.
CITATION
Patent Document
[0004]
Patent Document 1: JP 2007-199938 Patent Publication
Patent Document 2: JP 2008-019046 Patent Publication
Patent Document 3: JP 2007-128505 JP
Summary of the Invention
Problems that the Invention is to Solve
[0005]
　This invention aims to provide a management device, management method, a program for solving the problems described above.
Means for Solving the Problems
[0006]
　According to a first aspect of the present invention, the management device obtains the reception intensity of the oscillation signal in the case where a plurality of transmitters attached to each managed receives a calling signal transmitted by a plurality of reader a reception intensity acquisition unit, and the index value based on the plurality of reception intensities obtained in a predetermined period, based on a result of comparison between the newly acquired reception strength, the said transmitter corresponding to the newly acquired reception strength and a deterioration determination unit that determines whether one has deteriorated of the plurality of reading device receiving the signal.
[0007]
　According to a second aspect of the present invention, the management method of the reader, the reception intensity of the outgoing signal when it receives a transmission signal where a plurality of transmitters attached to each managed originates a plurality of reader acquires, and the index value based on the plurality of reception intensities obtained in a predetermined time period, said oscillation signal based on a comparison result between the newly acquired reception intensity, corresponding to the newly acquired reception strength It determines whether one of the received plurality of readers is degraded.
[0008]
　According to a third aspect of the present invention, the program of the management apparatus computer, of the oscillation signal in the case where a plurality of transmitters is mounted on each managed receiving the outgoing signal transmitted by a plurality of reader receiving intensity acquisition means for acquiring reception intensity, and index value based on the plurality of reception intensities obtained in a predetermined period, based on a result of comparison between the newly acquired reception strength, the newly acquired reception strength degradation determiner means for determining whether or not one has been degraded out of the corresponding oscillation signal of the plurality of reading apparatus receiving the, to function as a.
Effect of the invention
[0009]
　According to the present invention, it is possible to easily determine the degradation of a number of reader administrator used to read a signal originating from a number of transmitters.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010]
FIG. 1 is a diagram showing the relationship between the forklift and the container according to the embodiment.
FIG. 2 is a first diagram showing an example of a loading source or unloading destination according to the embodiment.
3 is a second view showing an example of a loading source or unloading destination according to the embodiment.
4 is a third diagram showing an example of a loading source or unloading destination according to the embodiment.
5 is a diagram showing a hardware configuration of a service management apparatus according to the first embodiment.
6 is a diagram showing a hardware configuration of the center-side management apparatus according to the first embodiment.
7 is a functional block diagram of a service management apparatus and the center-side management apparatus according to the first embodiment.
8 is a diagram showing a first operation example of the forklift according to the first embodiment.
9 is a diagram showing a second operation example of the forklift according to the first embodiment.
A first diagram showing a processing flow of FIG. 10 center side management apparatus according to the first embodiment.
Is a diagram showing a minimum configuration of FIG. 11 the management device.
DESCRIPTION OF THE INVENTION
[0011]
　Hereinafter, the management apparatus according to an embodiment of the present invention will be described by referring to the management method, the program drawings.
　Figure 1 is a diagram showing the relationship between the forklift 10 and the container 20.
　Forklift 10 in FIG. 1 is an example of a cargo handling machine. Container 20 is an example of a managed. Forklift 10, the service management apparatus 1, the antenna 11 (reader), satellite positioning antenna 13 includes a communication antenna 14. Detailed configuration of the forklift 10 is omitted known for. IC tag 21 (transmitter) is attached to the container 20. Insertion hole for inserting the forklift 10 forks (load gripping mechanism) is provided in the container 20. IC tag 21 may be, for example, is mounted in the vicinity of the insertion hole. When the forklift 10 is loaded with container 20, the driver plugging the fork insertion holes to advance the forklift 10. In this case, the IC tag 21 and the antenna 11 are close.
[0012]
　Satellite positioning antenna 13 is an antenna for receiving signals from a satellite. Satellite positioning antenna 13 work management apparatus information included in the received signal from the satellite 1 is acquired. Service management apparatus 1 detects the position of the forklift 10 based on the information contained in the signal.
　Service management apparatus 1, and other devices such as a center-side management apparatus 40 that manages the forklift 10 and the container 20, communicate via the communication antenna 14. Communication antenna 14 is connected by the communication cable to the service management apparatus 1.
　Service management apparatus 1 is an apparatus that manages the tasks for the managed such container 20. Service management apparatus 1, originating signal transmitted from the IC tag 21 acquires the reception intensity of the outgoing signal when received by the antenna 11. Antenna 11 may measure the reception intensity, work management apparatus 1 may measure the reception intensity based on the information corresponding to the oscillation signal obtained from the antenna 11. Service management apparatus 1 performs a comparison between the obtained reception intensity and the index value, the obtained antenna 11 (reader) received an oscillation signal corresponding to the received intensity on the basis of the comparison result whether the degraded judge. Index value is a value based on the reception intensity of the oscillation signal by each IC tag 21 attached to a plurality of containers 20 each acquired during a predetermined period originates.
[0013]
　Figure 2 is a first diagram showing an example of a loading source or unloading location.
　Figure 2 shows a first track to be carried from or out destination managed. The first track has position tag 31 (transmitter) is mounted for transmitting a transmitting signal including the position ID. The first track is not provided covers the box-shaped in the carrier. In this case, the forklift 10 can gain from the side of the bed container 20 to the loading platform. Or, the forklift 10 may be carried out by performing an operation for loading from the side of the bed container 20 to the fork to other transport destination. Also in working the forklift 10 is removed from the work and the first track of placing a container 20 to the first track, the service management apparatus 1 can acquire the reception intensity of the oscillation signal originating from the position tag 31 .
[0014]
　Figure 3 is a second diagram showing an example of a loading source or unloading location.
　Figure 3 shows a second track as a loading source or unloading location. In the second track, position tag 31 that transmits a transmission signal including the position ID is attached. The second track covering box shape is provided on the loading platform. In this case, in a state where An example covers the rear door of the box shape provided in the carrier is opened, the forklift 10 can gain container 20 in the carrier from the rear of the truck in accordance with the operation of the driver. Or forklift 10 can be carried out by performing an operation for loading the truck behind the container 20 to the fork to other transport destination. Also in working the forklift 10 is removed from the work and a second track for placement of a container 20 to the second track, the service management apparatus 1 can acquire the reception intensity of the oscillation signal originating from the position tag 31 .
[0015]
　Figure 4 is a third diagram showing an example of a loading source or unloading location.
　Figure 4 shows a wagon comprising a loading source or unloading location. Position tag 31 that transmits a transmission signal including the position ID in wagons is attached. In this case, the forklift 10 can gain from the side of the freight container 20 to the loading platform. Or, the forklift 10 may be carried out by performing an operation for loading from the side of the freight container 20 to the fork to other transport destination. Also in working the forklift 10 is removed from the work and wagons for placing a container 20 on the wagons, the service management apparatus 1 can acquire the reception intensity of originating outgoing signals from the position tag 31.
[0016]

　FIG. 5 is a diagram showing a hardware configuration of a service management apparatus 1 according to the first embodiment.
　Work management apparatus 1, as shown in Figure 5, CPU (Central Processing Unit) 101, IF (Interface) 102, a communication module 103, ROM (Read Only Memory) 104, RAM (Random Access Memory) 105, HDD (Hard Disk Drive) 106, and a configuration such as RFID (Radio Frequency for the Identification) reader 107 (reading unit). Communication module 103 transmits and receives signals via the communication antenna 14. RFID reader 107 performs reading processing of the oscillation signal based on the reception of the oscillation signal in the antenna 11. IF102, for example, is connected to the input and output device of the touch panel display or the like provided in the service management apparatus 1, and inputs and outputs information to the output device.
[0017]
　6 is a diagram showing a hardware configuration of the center-side management apparatus 40 according to the first embodiment.
　Center-side management device 40, as shown in Figure 6 CPU (Central Processing Unit) 401 , IF (Interface) 402, a communication module 403, ROM (Read Only Memory) 404, RAM (Random Access Memory) 405, HDD (Hard and a configuration such as Disk Drive) 406.
[0018]
　Figure 7 is a functional block diagram of a service management apparatus 1 and the center-side management apparatus 40.
　Service management apparatus 1 is provided with by the work management program stored in advance CPU101 executes the reception intensity obtaining section 61, the position detector 62, the function of the display unit 63.
　Center-side management apparatus 40, by the center-side management program stored in advance CPU401 executes the reception intensity acquisition unit 41, degradation determination unit 42, the index value calculating section 43, a warning output unit 44, the container management unit 45, a display a function of the part 46.
[0019]
　The work management apparatus 1, the receiving intensity obtaining section 61 receives the originating outgoing signals from the IC tag 21 (managed identification signal) and originating outgoing signals from the position tag 31 (position identification signal) by the antenna 11 acquires the reception intensity of the outgoing signal when the. Receiving intensity obtaining section 61 transmits the acquired reception intensity to the center-side management apparatus 40. Receiving intensity acquisition unit 61 may acquire the maximum reception intensity among a plurality of reception intensity of the oscillation signal obtained in one approach the antenna 11 and the IC tag 21 or position tag 31.
　Position detecting unit 62 detects the position of the forklift 10.
　Display unit 63 outputs various information on the monitor connected to the service management apparatus 1.
[0020]
　In the center-side management apparatus 40, the receiving intensity acquisition unit 41 acquires the ID of the tag originated the outgoing signal from the service management apparatus 1 and the reception intensity of the oscillation signal in which the service management apparatus 1 has received.
　Degradation determining unit 42 compares the index value index value calculating unit 43 has calculated, the newly acquired reception intensity. Degradation determining unit 42 determines whether, based on the comparison result, the antenna 11 receiving the oscillation signal of the acquired reception intensity (reading device) is degraded. When the service management apparatus 1 calculates the reception intensity of the outgoing signal, the deterioration determining unit 42 may determine whether or not the deteriorated function of calculating the reception intensity of the work management apparatus 1.
[0021]
　Index value calculating section 43 calculates an index value serves as a reference in the deterioration determination for the antenna 11. Specifically, of the reception intensity equal to or greater than the threshold value, which serves as a reference in the deterioration determination for the antenna 11, the highest reception intensity acquired the highest reception strength for a predetermined period, and obtained for each IC tag 21 and position tags 31 calculating an index value based on. Index value may the like mean value of the reception intensities obtained in a predetermined period. Alternatively, the index value calculating section 43, among the plurality of reception intensities obtained in a predetermined period may calculate the average value of the predetermined threshold or more reception intensity as an index value. Calculation of the index value, if the index value can determine whether the reception strength is not degraded or are degraded, may be any calculated.
[0022]
　Warning output unit 44 outputs the warning information when the IC tag 21 or position tag 31 is determined by the degradation judgment unit 42 has deteriorated.
　Container management unit 45 manages the loading and unloading of the container 20 on the basis of the information received from the service management apparatus 1.
[0023]
　Figure 8 is a diagram showing a first operation example of the forklift 10.
　Figure 8 is a forklift 10, according to the driver's operation, and the container 20 which are placed on the site, such as a container yard is carried origin shows an example of operation when loading the forklift 10. In this case, the IC tag 21 and the antenna 11 are close. When the IC tag 21 and the antenna 11 is close, reception intensity acquisition unit 61 acquires the reception intensity of the oscillation signal originating from the IC tag 21, and transmits the acquired reception intensity on the center side management apparatus 40. Degradation determining unit 42 of the center-side management device 40, based on the newly acquired reception strength, determines whether the antenna 11 is deteriorated.
[0024]
　Figure 9 is a diagram showing a second operation example of the forklift 10.
　9, the forklift 10 in response to operation of the driver, which illustrates the operation when loading the forklift 10 in the case or carrying source placing a container 20 on the carry-out destination. In this case, the antenna 11 position tag 31 approaches. When position tag 31 and the antenna 11 is close, reception intensity acquisition unit 61 acquires the reception intensity of originating outgoing signals from the position tag 31, and transmits the acquired reception intensity on the center side management apparatus 40. Degradation determining unit 42 of the center-side management device 40, based on the newly acquired reception strength, determines the deterioration of the antenna 11.
[0025]
　Index value calculating section 43 of the center-side management apparatus 40 acquires different reception intensity of originating outgoing signals from a plurality of IC tags 21 and position tags 31 from the service management apparatus 1 a plurality of different in advance for a predetermined period. The predetermined period of time, for example, may the like for several months from the start using the IC tag 21 manufactured. Index value calculating section 43 calculates an index value based on these obtained reception strength. Calculation of the index value based on the reception intensity of different IC tag 21 and the position tag 31 transmitting signal, assuming that these IC tags 21 and position tag 31 is the same tag device of the same manufacturer it may be. Or it IC tag 21 and the position tag 31 is manufactured in the same standard, or the assumption that outgoing intensity of the oscillation signal is the same. It is also the assumption that a device manufactured by similarly antenna 11 and the service management apparatus 1 also identical manufacturer or the same standard. Under such an assumption, the center-side management apparatus 40 may be originating environment or reception environment of the oscillation signal to calculate the index value in a unified environment.
[0026]
　Index value calculating section 43 calculates the average value of the reception intensity obtained outgoing signals emitted from a plurality of IC tags 21 and position tag 31 differ in advance a predetermined time period and received by the different antennas 11. Index value calculating section 43 stores the calculated average value as an index value. Index value calculating section 43, the highest reception strength among the threshold or more reception intensity, which serves as a reference in determining deterioration and the IC tag 21 position tag 31 respectively, also the antenna 11 and the work management apparatus calculates the reception intensity identified every may calculate the average value of the specified reception intensity as an index value. Thus, it is possible to calculate the index value when the IC tag 21 and position tag 31 and the antenna 11 is assumed to be the most approached. Alternatively, the index value calculating section 43, among the plurality of reception intensities obtained in a predetermined period may calculate the average value of the predetermined threshold or more reception intensity as an index value.
[0027]
　Figure 10 is a first diagram showing a processing flow of the center-side management apparatus 40 according to the first embodiment.
　Reception intensity acquisition unit 41 acquires the reception intensity information including the reception intensity of the oscillation signal by the antenna 11 has received from a plurality of different service management apparatus 1 (step S901). Reception intensity information, the ID of the IC tag 21 or position tags 31 that originated the outgoing signal, the ID of the service management apparatus 1, the ID of the antenna 11 may include an ID of the forklift 10. Reception intensity acquisition unit 41 outputs the receiving intensity information to the deterioration determining unit 42. Degradation determining unit 42 reads the index value index value calculating unit 43 is calculated from the storage unit or the like. Degradation determining unit 42 compares the reception intensity and the index value included in the received intensity information (step S902). Degradation determining unit 42, when the acquired reception intensity is less than the index value, and outputs information indicating the deterioration of the antenna 11 to the alarm output unit 44. Degradation determining unit 42, when the acquired reception intensity is greater than or equal to the index value, the process ends. Warning output unit 44, if you enter the information indicating the deterioration from the deterioration determining unit 42 outputs the warning information (step S903). Warning information may be output to the display unit 46, it may be output a sound from a speaker or the like. Incidentally, the deterioration determining unit 42 of the center-side management device 40, based on such a service management apparatus 1 of ID included in the received strength information, and to transmit the result of the deterioration determining the service management apparatus 1 that is identified by the ID it may be. Work management apparatus 1 receives the result of the deterioration determination, and outputs warning information to notify the driver of the forklift 10. Degradation determining unit 42, when the newly acquired reception strength is lower than a predetermined value than the index value, it may be determined that the antenna 11 is degraded. The predetermined value may be determined based on the index value. For example, the predetermined value, and half the value of the index value, the value may be such as obtained by multiplying a predetermined ratio to the index value.
[0028]
　The function of the degradation determining unit 42 described above may be provided to service management apparatus 1. In this case, the center-side management apparatus 40 transmits an index value index value calculating unit 43 calculates the service management apparatus 1. Thus, the deterioration determining unit and warning output unit of the service management apparatus 1 may perform similar processing of step S902 and step S903.
[0029]
　Above first embodiment has been described of the present invention, according to the above process, while the forklift 10 is performing the loading operation, the center side management device 40 or the work management device 1, IC tag 21 and arranged the outgoing signal transmitted from the position tag 31 can determine the deterioration of the antenna 11 for receiving. Further, the center-side management apparatus 40 or the work management device 1 may determine the deterioration of the function of receiving the service management apparatus 1 (calculating function of the reception intensity). Center side management device 40 or the work management unit 1, the number of antennas 11 and the service management apparatus 1 and the like of the reading device administrator used to read a signal transmitted from the transmitting device, such as a large number of IC tag 21 degradation it can be determined easily.
[0030]
　The first embodiment is an example in which the deterioration determination is carried out at an index value calculated from the reception strength when read by each of a plurality of antennas 11 to a transmission signal different different transmitters. Degradation determining unit 42, and the index value different plurality of antennas 11 a plurality of IC tags 21 and position tag 31 read by each based on the reception intensity of the outgoing signal originated multiple times in a predetermined time period, newly acquired based on the comparison of the reception intensity, and determine the deterioration of the antenna 11 receiving the oscillation signal of the received strength.
[0031]

　In the second embodiment, the index values calculated from the reception strength when it receives a transmission signal of one IC tag 21 or position tag 31 by the antenna 11 of a plurality of the forklift 10 different deterioration determination is made Te. In a second embodiment, the degradation determination unit 42, and the index value based on each reception intensity of the oscillation signal that originates multiple times in a predetermined period such as one IC tag 21 read by the plurality of antennas 11, newly acquired based on a comparison between the reception intensity, determines deterioration such antennas 11 receiving the oscillation signal of the received strength. That is, the index value calculating section 43, based on the plurality of reception intensities obtained in a predetermined period, calculates an index value for each IC tag 21 and the position tag 31. Degradation determining unit 42 identifies the IC tag 21 or position tag 31 corresponding to the oscillation signal of the newly acquired reception intensity to obtain an index value corresponding to the identification tag from the index value calculating unit 43. Degradation determining unit 42 compares the acquired index value and the newly acquired reception strength, determines whether such an antenna 11 based on the comparison result is deteriorated. By using the index value of the IC tag 21 and the position tag every 31, taking into account the individual differences of the IC tag 21 and the position tag 31, it is the deterioration determination such as the antenna 11.
[0032]

　In a third embodiment, the index values calculated from the reception strength when read different outgoing signal of the IC tag 21 and the position tag 31 by the antenna 11 of one of the forklift 10 deterioration determination is made Te. In a third embodiment, the degradation determination unit 42, and the index value, each plurality of IC tags 21 and position tag 31 read by one antenna 11 is based on the reception intensity of the outgoing signal originated multiple times in a predetermined time period It determines newly acquired based on a comparison between the reception intensity, deterioration such as antenna 11 which receives the oscillation signal of the received strength. That is, the index value calculating section 43, based on the plurality of reception intensities obtained in a predetermined period, calculates an index value for each antenna 11. Degradation determining unit 42 identifies the antenna 11 corresponding to the oscillation signal of the newly acquired reception intensity to obtain an index value corresponding to the antenna 11 which is identified from the index value calculating unit 43. Degradation determining unit 42 compares the acquired index value and the newly acquired reception strength, determines whether such an antenna 11 based on the comparison result is deteriorated. By using the index of each antenna 11, taking into account the individual differences of the antenna 11, it is the deterioration determination such as the antenna 11.
[0033]
　Figure 11 is a diagram showing a minimum configuration of a management device.
　Management device as shown in FIG. 11 (work management device 1 or the center side management apparatus 40) is provided with at least the receiving intensity obtaining section 41 and the degradation determining unit 42.
[0034]
　In the above description a managed object container 20, but the management system has been described the example provided in the service management apparatus 1 and the center side management device 40 of the forklift 10, managed the other objects (for example clothing, the present like it may be an over-the-counter products, etc.). In this case, the management device may be a device included in the portable terminal.
[0035]
　Work management apparatus or center side management apparatus 40 described above therein, and a computer system. Process of the processes described above, are stored in a computer-readable recording medium in the form of a program, by executing the program computer reads, the process is performed. The computer-readable recording medium may be a magnetic disk, a magneto-optical disk, CD-ROM, DVD-ROM, a semiconductor memory or the like. Furthermore, it delivered to a computer the computer program via a communication line, a computer which receives this delivery may execute the program.
[0036]
　Further, the program may be one for implementing part of the above functions. Furthermore, what can be achieved in combination with a program already recorded in the above-described functions in the computer system may be a so-called differential file (differential program).
[0037]
　The present application, on September 29, 2016, claiming priority based on Japanese Patent Application No. 2016-191006, filed in Japan, the contents of which are incorporated here.
Industrial Applicability
[0038]
　The present invention is applicable to many reader readily determined to be necessary applications deterioration of the administrator to use to read the signals originating from a number of transmitters.
DESCRIPTION OF SYMBOLS
[0039]
1 ... service management apparatus
10 · forklift
11 ... antenna
13 ... satellite positioning antenna
14 ... communication antenna
20 ... Container
21 ... IC tag
31 ... position tag
40, ... center side management device
41, 61 ... receiving intensity obtaining unit
46,63 ... display unit
42 ... degradation determining unit
43 ... index value calculating section
44 ... alarm output unit
45 ... container management unit
62 ... position detection unit

The scope of the claims
[Requested item 1]
　A reception intensity acquisition unit that acquires the reception intensity of the oscillation signal in the case where a plurality of transmitters attached to each managed receiving the outgoing signal transmitted by a plurality of reading devices,
　a plurality of received acquired in a predetermined time period the index value based on the intensity, based on a result of comparison between the newly acquired reception strength, the one of the newly acquired the oscillation signal of the plurality of reader that received the corresponding to the received strength degradation a degradation determining unit determines whether to
　managing apparatus comprising a.
[Requested item 2]
　The index value based on the plurality of reception intensities obtained in the predetermined period is calculated for each of the plurality of transmitters,
　wherein the degradation determining unit, the oscillation signal corresponding to the newly acquired reception strength and the index value for one of the plurality of transmitter that originated the, on the basis of the comparison result between the newly acquired reception strength, the oscillation signal corresponding to the newly acquired reception strength determines whether one of the received plurality of readers is degraded,
　the management apparatus according to claim 1.
[Requested item 3]
　The index value based on the plurality of reception intensities obtained in the predetermined period is calculated for each of the plurality of readers,
　the degradation determining unit, the oscillation signal corresponding to the newly acquired reception strength and the index value for one of the plurality of reading apparatus has received, on the basis of the comparison result between the newly acquired reception strength, the oscillation signal corresponding to the newly acquired reception strength determines whether one of the received plurality of readers is degraded,
　the management apparatus according to claim 1.
[Requested item 4]
　The index value, the calculated plurality of reception intensities obtained in a predetermined period,
　the management apparatus according to claim 1.
[Requested item 5]
　The deterioration determining unit is configured newly acquired reception intensity is determined that one of the plurality of reader is smaller than the index value is degraded,
　any one of claims 1 to 4 management apparatus according to.
[Requested item 6]
　Get the highest reception intensity of the threshold or more reception intensity, which serves as a reference in the deterioration determination for the plurality of reader in the predetermined period, the index value calculating section for calculating the index value based on the reception intensity acquired If,
　management apparatus according to any one of claims 1 to 5 comprising a.
[Requested item 7]
　Gets the reception intensity of the oscillation signal in the case where a plurality of transmitters attached to each managed receives a calling signal transmitted by a plurality of reader,
　the index value based on the plurality of reception intensities obtained in a predetermined time period If, on the basis of a comparison result between newly acquired reception strength, whether one of the newly acquired plurality of reading apparatus that has received the calling signal corresponding to the received strength is degraded It determines
　how to manage the reading device.
[Requested item 8]
　The computer of the management apparatus,
　reception intensity acquisition means for acquiring the reception intensity of the oscillation signal in the case where a plurality of transmitters attached to each managed object is received by a plurality of reader outgoing signal transmitted,
　acquires a predetermined time period the index value based on the plurality of reception intensities, based on the comparison result between the newly acquired reception strength, the newly acquired plurality of reading apparatus that has received the calling signal corresponding to the received intensity degradation determiner unit configured to determine whether one has deteriorated in out,
　the program to function as a.