JP5941238B1 - Target information transmission / reception management system - Google Patents

Abstract

Provided is a target information transmission / reception management system capable of transmitting / receiving operating state information even if time synchronization is not possible. After receiving the operation state request information at the scheduled operation state provision time T0, when the operation state request information cannot be received at the scheduled operation state provision times T1 to T3, the communication standby start time ST4 with respect to the scheduled operation state provision time T4. Is set to the communication standby time TP4 from the communication standby end time ET4. The communication standby time TP4 is a communication standby time longer than the communication standby times TP1 to TP3. The trap operation state providing device 110 sets the standby time for acquiring the request information so long that the request information cannot be acquired due to some circumstances and the state where the trap operation state information cannot be provided continuously occurs. Even when a deviation occurs between the trap operation state providing device 110 and the trap operation state management device 120, a waiting time is set to absorb the deviation, and the request information is always received and the trap operation state information is transmitted. And [Selection] FIG.

Description

  The present invention relates to a target information transmission / reception management system that transmits and manages target information, and more particularly to a system that can reliably transmit and receive target information.

  In a process system such as a plant, there are many process system components such as a steam trap. In order to manage the operation state of these process system components, there is a process system component operation state management system as a target information transmission / reception management system via a wireless network. The process system component device operating state management system includes an operation state providing device that acquires an operation state from the process system component device, and an operation state managing device that receives and manages the operation state from each operation state providing device. Each of the operation state providing device and the operation state management device has an individual time measuring circuit. For this reason, in order to match the timing of transmitting / receiving operating state information between each operating state providing device and the operating state managing device, the operating state information is transmitted / received after synchronization between the respective time measuring circuits. To do.

  A time synchronization technique used in a conventional target information transmission / reception management system will be described using a time synchronization system observation system shown in FIGS.

  As shown in FIG. 17, the time synchronization system observation system includes a transmission device 1, a reception station 4, and n (n is a positive integer) GPS (Global Positioning System) satellites 5-1 to 5 -n. ing.

  The transmission device 1 includes a time unit 2 that extracts time synchronization information from radio waves of GPS satellites 5-1 to 5-n and a transmission unit 3 to which m sensors 31-1 to 31-m are connected. Yes.

  The time unit 2 includes an antenna 21, n GPS reception units 22-1 to 22-n, a selection unit 23, a time information extraction unit 24, a reference clock oscillation unit 25, a system clock generation unit 26, The phase comparison control unit 27 and the time information conversion unit 28 are included. The transmission unit 3 includes m sensors 31-1 to 31 -m, a data processing unit 32, and an interface unit 33.

  The GPS receiving units 22-1 to 22-n receive radio waves including time synchronization information from the corresponding GPS satellites 5-1 to 5-n. The selection unit 23 selects an arbitrary radio wave from the radio waves received by the GPS reception units 22-1 to 22-n. The time information extraction unit 24 extracts a time information signal from the radio wave selected by the selection unit 23.

  The reference clock oscillating unit 25 generates a clock serving as a reference for the operation of the time synchronization system observation system. The system clock generator 26 generates a timing clock necessary for the operation of the time synchronization system observation system based on the reference clock from the reference clock oscillator 25. The phase comparison control unit 27 establishes phase synchronization between the time information signal extracted by the time information extraction unit 24 and the system clock generated by the system clock generation unit 26. The time information conversion unit 28 converts the time information signal extracted by the time information extraction unit 24 into time numerical information.

  The data processing unit 32 of the transmission unit 3 generates time synchronous system sensor data that is sensor data to which time numerical value information is added. The interface unit 33 converts the time-synchronous sensor data into a data format that conforms to the interface condition of the transmission path 107 that transmits to the receiving station 4.

  The receiving station 4 is connected to the transmitting apparatus 1 via the transmission path 107, and includes a receiving apparatus 41 that receives transmission information of the transmitting apparatus 1 and a terminal 42 that processes the received information of the receiving apparatus 41. Yes.

  FIG. 18 is a flowchart showing the selection process of the selection unit 23. The transmission device 1 receives radio waves including absolute time from the n GPS satellites 5-1 to 5-n via the antenna 21. The n GPS receivers 22-1 to 22-n corresponding to each of the n GPS satellites 5-1 to 5-n convert the received radio wave into an electrical signal and output it to the selector 23.

  The selection unit 23 collates with the conditions of n GPS satellites 5-1 to 5-n from which time information signals that are arbitrarily set in advance are extracted, and n GPS satellites 5-1 to 5-n. An electric signal of a radio wave to be adopted is selected from the radio waves of the radio signal and output to the time information extraction unit 24.

  That is, when the time numerical value information (current time) converted by the time information conversion unit 28 comes to a predetermined time set in advance (step S1 in FIG. 18), the selection unit 23 indicates a GPS satellite state at each time. The GPS satellite selection information corresponding to the current time is read from the GPS satellite selection information table 23a in which the satellite selection information is stored in advance (step S2 in FIG. 18).

  The selection unit 23 determines whether or not radio waves from the currently selected GPS satellite can be received based on the GPS satellite selection information read from the GPS satellite selection information table 23a (step S3 in FIG. 18). If the radio wave from the currently selected GPS satellite cannot be received, the selection unit 23 selects an electric signal of an arbitrary GPS satellite radio wave from electric signals of radio waves of other GPS satellites that can receive the radio wave ( FIG. 18 step S4).

  As described above, in the transmission device 1, the GPS unit that is selected by directly receiving the reference time from the n GPS satellites 5-1 to 5-n and selecting the GPS satellite to be used by the selection unit 23. The time when the radio waves of the satellites 5-1 to 5-n cannot be received and the absolute time cannot be guaranteed can be brought close to "0". Therefore, data with guaranteed absolute time can be obtained even at a remote location.

  Therefore, the m sensors 31-1 to 31-m are synchronized with the absolute time, and the time during which the radio waves of the selected GPS satellites 5-1 to 5-n cannot be received is brought close to “0”, and m By attaching accurate time information to the observation data from the sensors 31-1 to 31-m, it is possible to operate with a clock synchronized with the absolute time, and to improve the reliability of the data with respect to time.

  Further, it is not necessary to have a highly accurate and highly stable reference clock oscillator. Further, by receiving data from the m sensors 31-1 to 31-m and transmitting the information directly to the transmitting / receiving device that transmits the data to another location from a device having a GPS reception function, the data can be sent to a remote location. There is no need to consider time loss during transmission (see Patent Document 1 above).

JP 2000-292572 A

  In order to use the time synchronization technique of the time synchronization system observation system described above for the target information transmission / reception management system, there are the following points to be improved. In the time synchronization system observation system, a GPS satellite capable of receiving radio waves is selected from a plurality of GPS satellites, and time synchronization is executed using radio waves received from the selected GPS satellites. Generally, a process system has a complicated piping configuration. For this reason, there is a case where the process system component device is disposed in the back of the pipe, cannot receive a signal from a GPS satellite, and cannot synchronize time. If time synchronization cannot be performed in this way, there is a point to be improved that the operating state information cannot be transmitted / received in the target information transmission / reception management system.

  Accordingly, an object of the present invention is to provide a target information transmission / reception management system capable of transmitting / receiving operating state information even when time synchronization cannot be performed. It is another object of the present invention to provide a target information providing apparatus that can transmit target information even if time synchronization cannot be performed.

  Means for solving the problems in the present invention and the effects of the invention will be described below.

  A target information transmission / reception management system according to the present invention includes a target information providing apparatus that provides predetermined target information based on a scheduled target information provision time, and a target information management apparatus that acquires the target information from the target information providing apparatus. When the target information management device determines that the time measured by the management-side time measuring unit for measuring time and the time measured by the management-side time measuring unit has become the target information request time, When the target information is acquired from the target information providing apparatus that is the transmission target of the target information request information, the management-side transmission unit that transmits the target information request information for requesting transmission to the predetermined target information providing apparatus A target information storage control unit that stores and holds the target information in association with the target information providing apparatus that has transmitted the target information; The apparatus includes a providing side timing unit that measures time, a providing side receiving unit that receives the target information request information, and a communication standby start time set by the providing side timing unit for each scheduled target information providing time. When it is determined that the communication standby state of the providing side receiving unit is started, and when it is determined that the communication standby end time set for each schedule target information providing time has come, the communication standby state of the providing side receiving unit Communication standby control unit that ends the target information request information, the target information transmission unit that transmits the target information, the communication standby time from the communication standby start time to the communication standby end time is the previous schedule Communication standby time setting for setting the communication standby time corresponding to each scheduled target information provision time so as to be longer than the communication standby time set corresponding to the target information provision time It has a.

  As a result, even if the time lag between the providing side timing unit and the management side timing unit increases, the communication standby time can be increased, so that the target information can be reliably transmitted and received.

  A target information providing apparatus according to the present invention is a target information providing apparatus that provides predetermined target information based on a scheduled target information provision time, and is a target-side timing unit that counts time, and a target that requests provision of target information When determining that the time measured by the providing side receiving unit that receives the information request information is the communication standby start time set for each scheduled target information providing time, the communication waiting state of the providing side receiving unit If the communication standby end time set for each scheduled operating state provision time is reached, the communication standby control unit for ending the communication standby state of the providing side receiving unit acquires the target information request information Then, a target information transmission unit that transmits the target information, a communication standby time from the communication standby start time to the communication standby end time is set corresponding to the scheduled operating state provision time before To be longer than the communication waiting time, and a communication standby time setting unit, for setting the communication waiting time corresponding to each said predetermined target information provision time.

  Thereby, even if the time lag between the providing side timing unit and the other party providing the operating state information increases, the communication standby time can be increased, so that the target information can be reliably transmitted and received.

  The target information providing apparatus according to the present invention further obtains synchronization time information indicating a synchronization time measured based on the management-side timing unit generated for each target information request information via the providing side receiving unit. Then, based on the synchronization time information, it has a synchronization time setting unit that sets the time of the providing side timekeeping unit, the providing side receiving unit further receives the synchronization time information, the communication standby time setting The unit further determines, for each schedule target information provision time, whether or not the synchronization time information has been acquired, and sets the synchronization time information in the communication standby time corresponding to the previous scheduled operation state provision time. If not acquired, the next scheduled target is set such that the communication standby time corresponding to the next scheduled target information provision time is longer than the communication standby time corresponding to the previous scheduled target information provision time. information Setting the communication waiting time corresponding to the test time, characterized by.

  As a result, when the time counter between the providing side and the other party providing the operating state information cannot be synchronized, and the time lag between the two increases, the communication standby time can be lengthened. Target information can be sent and received.

  In the target information providing device according to the present invention, the communication standby time setting unit further acquires the synchronization time information in the communication standby time corresponding to the previous scheduled target information provision time, Setting the communication standby time corresponding to the next schedule target information provision time so that the communication standby time corresponding to the schedule target information provision time becomes the communication standby time of a predetermined length; Features.

  As a result, when time synchronization is established between the providing timekeeping unit and the other party providing the operating state information, the predetermined communication standby time is set, so that the target information report can be efficiently transmitted and received.

  In the target information providing apparatus according to the present invention, if the communication standby time setting unit further acquires the synchronization time information in the communication standby time corresponding to the previous scheduled target information provision time, The communication standby start time corresponding to the next schedule target information provision time is set so as to be before the communication standby start time set corresponding to the schedule target information provision time, and / or The communication standby end time corresponding to the next schedule target information provision time is set so as to be later than the communication standby end time set corresponding to the schedule target information provision time. To do.

  As a result, time synchronization between the providing timekeeping unit and the other party providing the operating state information is not possible, and the time difference between the two becomes large due to the time of the providing timekeeping unit being advanced or delayed. Even if it becomes, the target information can be reliably transmitted and received.

  A target information providing program according to the present invention is a target information providing program that causes a computer to function as a target information providing apparatus that acquires predetermined target information and provides the target information to a target information management apparatus. A time counter for providing time, a receiving side for receiving target information request information for requesting provision of the target information, and a time measured by the time counter for providing the time are set for each scheduled target information provision time. When it is determined that the communication standby start time has come, the communication receiving state of the providing side receiving unit is started, and when it is determined that the communication standby end time set for each scheduled operating state providing time has come, the providing side receiving unit A communication standby control unit that terminates the communication standby state, a target information transmission unit that transmits the target information when the target information request information is acquired, and the scheduled target information Communication standby time to be set so that the communication standby time from the communication standby start time to the communication standby end time becomes longer than the communication standby time set to the previous schedule target information supply time for each provided time It functions as a setting unit.

  As a result, even if the time synchronization between the providing side timing unit and the management side timing unit cannot be performed and the time lag is large, the communication standby time can be increased, so that the target information can be transmitted and received reliably. it can.

  Here, the correspondence between the constituent elements in the claims and the constituent elements in the embodiment is shown. The “target information transmission / reception management system” in the claims corresponds to the “trap operation state management system 100” in the embodiment. The “target information providing device” in the claims corresponds to the “trap operation state providing device 110” in the embodiment. The “target information management device” in the claims corresponds to the “trap operation state management device 120” in the embodiment. Further, the “target information” in the claims corresponds to the “operation state information” in the embodiment.

In addition, the “management-side timer” in the claims is the “timer circuit 120j” in the embodiment, and the “manager-side transmitter” in the claims is the “CPU 120a”, “memory 120b”, “ The “target information storage control unit” in the claims corresponds to “CPU 120a”, “memory 120b”, and “HDD 120c” in the embodiments, respectively. In addition, the “providing side timer” in the claims is “timer circuit 110j” in the embodiment, and the “provider side receiver” in the claims is “CPU 110a”, “memory 110b”, “wireless” in the embodiments. In the communication circuit 110h, the “communication standby control unit” in the claims is “CPU 110a”, the “memory 110b”, and the “wireless communication circuit 110h” in the embodiments, and the “target information transmission unit” in the claims is “CPU 110a”, “memory 110b”, “wireless communication circuit 110h”, “sensor communication circuit 110i” in the embodiment, and “communication standby time setting unit” in claims are “CPU 110a”, “memory 110b” in the embodiment. The “synchronization time setting unit” in claims is “CPU 110a”, “memo” in the embodiment. 110b ", the" timing circuit 110j ", each corresponding.

It is a figure which shows the structure of the trap operation state management system 100 which is one Example of the target information transmission / reception management system which concerns on this invention. It is a figure which shows the external appearance structure of the trap operation state provision apparatus. It is a figure which shows the state which attached the trap operation state provision apparatus 110 to the steam trap T. FIG. It is a figure which shows the hardware constitutions of the trap operation state provision apparatus. It is a figure which shows the hardware constitutions of the trap operation state management apparatus. It is a figure which shows the data structure of operating state information. It is a figure which shows the data structure of operation state provision time information. It is a figure which shows the data structure of operation state provision schedule information. It is a figure which shows the data structure of communication log information. It is a figure which shows the data structure of operation state information DB. It is a figure which shows the data structure of operating state request information. It is a figure which shows the data structure of operation state request | requirement schedule information. 5 is a flowchart showing the operation of the trap operating state management device 120. 4 is a flowchart showing the operation of the trap operation state providing device 110. It is a flowchart which shows an operation state provision time setting process. It is a figure explaining the setting of communication standby start time and communication standby end time. It is a figure which shows the conventional time synchronous system observation system. It is a figure which shows the conventional time synchronous system observation system.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. As one embodiment of the target information transmission / reception management system according to the present invention, a trap operation state management system that provides an operation state of a steam trap used in a steam system will be described.

Hardware Configuration of First Trap Operating State Management System 100 The trap operating state management system 100 will be described with reference to FIG. The trap operation state management system 100 is a system that manages the operation states of a large number of steam traps T distributed in a process system formed in a factory, a plant, or the like using wireless communication. The trap operation state management system 100 includes a trap operation state providing device 110 and a trap operation state management device 120.

  The trap operation state management device 120 transmits the operation state request information to the trap operation state providing device 110, and obtains the operation state information from the trap operation state providing device 110 that has transmitted the operation state request information. Manage the operating state of and determine the operating state. Further, the trap operation state management device 120 provides time synchronization information for synchronizing time with the trap operation state providing device 110 to the trap operation state providing device 110.

  The trap operation state providing device 110 is installed in each steam trap T constituting the process system. The trap operating state providing device 110 acquires the operating state of the steam trap T, sets the wireless communication circuit to the communication standby state, and acquires the operating state request information. When the operating state request information is acquired, the trap operating state management device 120 uses the acquired operating state as operating state information. To provide. When the trap operation state providing device 110 acquires the time synchronization information, the trap operation state providing device 110 synchronizes the time with the trap operation state management device 120. On the other hand, when the time synchronization information cannot be acquired, the time during which the wireless communication circuit is in the communication standby state is set longer.

Thereby, even if the time synchronization cannot be performed between the trap operation state providing device 110 and the trap operation state management device 120 and the time difference between the two becomes large, the trap operation state providing device 110 Since the communication standby time is lengthened according to the time when synchronization could not be performed, the operating state information can be reliably transmitted and received.

Configuration of second trap operation state providing device 110 Appearance Configuration of Trap Operating State Providing Device 110 An external configuration of the trap operating state providing device 110 will be described with reference to FIG. The trap operation state providing device 110 includes a sensor unit P101, an electrical component placement unit P103, and an intermediate shaft unit P105.

  The sensor unit P101 detects the operating state of the steam trap T as an electrical signal using various sensors. The sensor unit P101 includes various sensors such as a vibration sensor and a temperature sensor that detect an operation state of the steam trap T, for example, vibration and temperature. In addition, description is abbreviate | omitted about the detailed structure of the sensor part P101.

  The electrical component placement unit P103 has various circuits including the wireless communication circuit 110h. Here, the wireless communication circuit 110h amplifies an electrical signal related to the operating state detected by the sensor unit P101, and provides it to other communication devices as operating state information. Note that the trap operation arranged in the electrical component arrangement unit P103 The hardware configuration of the state providing device 110 will be described later.

  The intermediate shaft portion P105 includes a cylindrical flexible pipe 116 and a cable (not shown) disposed inside the flexible pipe 116. In addition, the cable arrange | positioned inside the flexible pipe 116 electrically connects the electrical component which the electrical component arrangement | positioning part P103 has, and the sensor which the sensor part P101 has. Further, the flexible pipe 116 is connected to the sensor unit P101 and the electrical component placement unit P103 using the lower cap nut N101 and the upper cap nut N103, respectively.

  In addition, as shown in FIG. 3, the trap operation state providing device 110 is fixed to the steam trap T by using a predetermined fixing device HF. When the trap operation state providing device 110 is fixed to the steam trap T, the tip F of the sensor unit P101 is fixed so as to contact a predetermined portion of the steam trap T, for example, an inlet portion. Thereby, the trap operation state providing device 110 acquires the operation state of the steam trap T from various sensors via the tip F of the steam trap T.

2. Hardware Configuration of Trap Operating State Providing Device 110 Next, the hardware configuration of the electrical components arranged inside the electrical component arranging unit P103 of the trap operating state providing device 110 shown in FIG. 2 will be described with reference to FIG.

  As shown in FIG. 4, the trap operation state providing device 110 includes a CPU 110a, a memory 110b, a wireless communication circuit 110h, a sensor communication circuit 110i, and a timing circuit 110j.

  The CPU 110a performs processing based on other applications such as an operating system (OS) and a trap operation state information providing program recorded in the memory 110b. The memory 110b provides a work area for the CPU 110a. The memory 110b includes an operating system (OS), a program of other applications such as a trap operation state information providing program, operation state information, operation state provision time information, operation state provision schedule information, communication history information, and reference waiting. Various data such as time information and reference addition waiting time information are recorded and held. Various data will be described later.

  The wireless communication circuit 110h transmits / receives data to / from an external communication device such as the trap operation state management device 120 by wireless communication. The sensor communication circuit 110i is connected to various sensors such as a temperature sensor and a vibration sensor arranged in the trap operation state providing device 110, and acquires operation state information of the steam trap T from the various sensors. The clock circuit 110j generates a predetermined clock and clocks a time that is a reference for the trap operation state providing device 110.

Hardware Configuration of Third Trap Operating State Management Device 120 The hardware configuration of the trap operating state management device 120 will be described with reference to FIG. As shown in FIG. 5, the trap operation state management device 120 includes a CPU 120a, a memory 120b, a hard disk drive 120c (hereinafter referred to as HDD 120c), a keyboard 120d, a mouse 120e, a display 120f, an optical drive 120g, a wireless communication circuit 120h, And it has the time measuring circuit 120j.

  The CPU 120a performs processing based on other applications such as an operating system (OS) and a trap operation state information management program recorded in the HDD 120c. The memory 120b provides a work area for the CPU 120a. The HDD 120c stores other application programs such as an operating system (OS), a trap operation state information management program, and various data such as an operation state information database (hereinafter referred to as an operation state information DB) and operation state request schedule information. Keep records. Various data will be described later.

The keyboard 120d and the mouse 120e accept external commands. The display 120f displays an image such as a user interface. The optical drive 120g reads a trap operation state information management program from an optical medium 120p (not shown) in which a trap operation state information management server program is recorded, and programs for other applications from other optical media. Read data from optical media. The wireless communication circuit 120h transmits / receives data to / from an external communication device such as the trap operation state providing device 110 by wireless communication. The time measuring circuit 120j generates a predetermined clock and measures a time that is a reference of the trap operation state management device 120.

The main data used in the fourth data trap operating state management system 100 will be further described with reference to FIGS.

1. Operating state information The operating state information is information indicating the operating state of the steam trap T at a predetermined time, for example, temperature and vibration. The operating state information is acquired by the trap operating state providing device 110 via various sensors, and is stored and held in the memory 110b.

  The data structure of the operating state information is shown in FIG. The operating state information has an operating state type description area, an operating state value description area, and an operating state value acquisition time description area. In the operating state type description area, the type of operating state is described. In the operating state value description area, the sensor value of the sensor used when acquiring the operating state is described. In the operating state value acquisition time description area, the time indicated by the time measuring circuit 110j when the operating state value is acquired is described.

2. Operation State Provision Time Information The operation state provision time information is information indicating the time used by the trap operation state provision device 110 to provide the operation state to the trap operation state management device 120. The operating state providing time information is generated by the trap operating state providing device 110 and stored and held in the memory 110b.

  The data structure of the operating state provision time information is shown in FIG. The operation state provision time information has a scheduled operation state provision time description area, a communication standby start time description area, and a communication standby end time description area. In the scheduled operation state provision time description area, a scheduled operation state provision time at which provision of operation state information is scheduled is described. The scheduled operating state provision time is determined in advance and described in the operating state provision schedule information. In the communication standby start time description area, a communication standby start time for starting the communication standby state of the wireless communication circuit 110h is described in order to acquire the operation state request information. In the communication standby start time description area, a communication standby end time for ending the standby state of the wireless communication circuit 110h is described. The communication standby start time and the communication standby end time are calculated by the trap operation state providing device 110 for each scheduled operation state provision time. The calculation of the communication standby start time and the communication standby end time by the trap operation state providing apparatus 110 will be described later.

3. Operation State Provision Schedule Information The operation state provision schedule information is information in which a scheduled operation state provision time at which the trap operation state provision device 110 provides operation state information to the trap operation state management device 120 is described. The operation state provision schedule information is stored and held in advance in the memory 110b of the trap operation state provision device 110.

  The data structure of the operating state provision schedule information is shown in FIG. The operation state provision schedule information has a scheduled operation state provision time description area. In the scheduled operation state provision time description area, the scheduled operation state provision time for a predetermined period is described along the time axis.

4). Communication history information The communication history information is information obtained by accumulating a history of transmission / reception of request information and operation state information between the trap operation state providing device 110 and the trap operation state management device 120 at each scheduled operation state providing time. The communication history information is generated by the trap operation state providing device 110 and stored in the memory 110b.

  The data structure of the communication history information is shown in FIG. The communication history information has a scheduled operation state provision time description area, an operation state request information acquisition time description area, and an operation state provision time description area. In the scheduled operation state provision time description area, a scheduled operation state provision time scheduled to provide operation state information to the trap operation state management device 120 is described. The scheduled operation state provision time is obtained by acquiring the scheduled operation state provision time described in the scheduled operation state provision time description area of the operation state provision schedule information (see FIG. 8), and the scheduled operation state provision time description of the communication history information. Described in the area. In the operation state request information acquisition time description area, the time when the request information is acquired from the trap operation state management device 120 is described. In the operation state provision time description area, the time when the trap operation state provision device 110 transmits the operation state information to the trap operation state management device 120 is described. The operating state request information acquisition time and the operating state provision time are acquired from the time measuring circuit 110j.

5. Reference Standby Time Information / Reference Addition Standby Time Information The reference standby time information is information indicating a basic length for setting the wireless communication circuit 110h of the trap operation state providing device 110 in the communication standby state. The reference standby time information is set for the same time before and after the scheduled operating state provision time. The reference waiting time information is set in advance and is stored and held in the memory 110b of the trap operation state providing device 110.

  The reference addition waiting time information is information indicating a basic length when the communication waiting state of the wireless communication circuit 110h of the trap operation state providing device 110 is extended. The reference addition waiting time information is preset and stored in the memory 110b of the trap operation state providing device 110.

6). Operating state information DB
The operating state information DB is information in which the operating states of the steam traps T belonging to the network are accumulated. The operation state information DB is generated by the trap operation state management device 120 based on the operation state of the steam trap T acquired via each trap operation state providing device 110, and is stored and held in the HDD 120c.

  The data structure of the operating state information DB is shown in FIG. The operation state information DB has a process system component device ID description area, an operation state type description area, an operation state value description area, an operation state value acquisition time description area, and a reception time description area. In the process system configuration device ID description area, a process system configuration device ID that uniquely identifies the process system configuration device that has acquired the operation state information is described. The operation state type description area, the operation state value description area, and the operation state value acquisition time description area respectively include an operation state type description area, an operation state value description area, and an operation state value of the acquired operation state information (see FIG. 6). The value of the acquisition time description area is described. In the reception time description area, the time indicated by the timer circuit 120j when the operating state information is received is described.

7). Operation state request information The operation state request information is information for requesting the trap operation state providing device 110 to provide operation state information, and the time of the timing circuit 110j included in the trap operation state providing device 110, and the trap operation state management device. Information for ensuring transmission of the operation state information in the trap operation state providing device 110 and reception of the operation state information in the trap operation state management device 120 by synchronizing the time of the timing circuit 120j included in 120 It is. The operation state request information is generated by the trap operation state management device 120 and stored in the memory 120b.

  The data structure of the operating state request information is shown in FIG. The operation state request information has a process system component device ID description area and a synchronization time description area. In the process system configuration device ID description area, a process system configuration device ID that uniquely identifies the process system configuration device that transmits the provision time synchronization information is described. In the synchronization time description area, the operation state request information is transmitted from the trap operation state management device 120 to the time of the timing circuit 120j of the trap operation state management device 120 when the provision time synchronization information is transmitted to the trap operation state provision device 110. The synchronous time calculated in consideration of the time lag until the trap operating state providing device 110 is reached is described. As a result, the trap operation state providing device 110 that has received the provision time synchronization information matches the time of its own clock circuit 110j with the synchronization time, thereby managing the time of the timing circuit 110j of the trap operation state providing device 110 and the trap operation state management. The time of the clock circuit 120j of the device 120 can be synchronized.

8). Operation state request schedule information The operation state request schedule information is information in which the operation state request time at which the trap operation state management device 120 requests the trap operation state providing device 110 to transmit the operation state information is described. . The operation state request schedule information is stored and held in advance in the HDD 120c of the trap operation state management device 120.

  The data structure of the operation state request schedule information is shown in FIG. The operation state request schedule information includes a process system component device ID description area and a scheduled operation state request time description area. In the process system component device ID description area, information for uniquely identifying each trap operation state providing device 110 is described. In the scheduled operation state request time description area, a time for transmitting the operation state request information to each trap operation state providing device 110 is described.

Operation of the fourth trap operation state management system 100 Overview of Operation of Trap Operating State Management System 100 Generally, a large number of steam traps T are arranged in a process system. The trap operation state management device 120 sequentially communicates with each of the trap operation state providing devices 110 arranged in the steam trap T of the process system, and acquires the operation state regarding each steam trap T.

  The trap operation state management device 120 sequentially outputs the operation state request information to request each trap operation state providing device 110 to start transmission of the operation state information according to the operation state request schedule information (see FIG. 10). The information is transmitted to the target trap operation state providing device 110. The trap operation state management device 120 stands by so as to receive the operation state information from the trap operation state providing device 110 that has transmitted the operation state request information. When the trap operation state management device 120 receives the operation state information from the target trap operation state providing device 110, the trap operation state management device 120 associates the received operation state information with the target trap operation state providing device 110, and operates the operation state information DB ( (See FIG. 8).

  The trap operating state providing device 110 operates the wireless communication circuit 110h based on the operating state providing time information (see FIG. 7) stored and held in the memory 110b to enter a standby state. When the trap operation state providing device 110 acquires the operation state request information transmitted from the trap operation state management device 120, the trap operation state management device 120 stores the operation state information (see FIG. 6) stored in the memory 110b. Send to.

  The trap operation state information providing device 110 and the trap operation state management device 120 synchronize the times of the respective clock circuits 110j and 120j so that the operation state information can be reliably transmitted and received. The time synchronization between the time measuring circuit 110j and the time measuring circuit 120j is realized by including a synchronization time necessary for time synchronization in the operation state request information when the trap operation state management device 120 transmits the operation state request information.

If the operation state request information can be transmitted and received between the trap operation state information providing device 110 and the trap operation state management device 120, the time of the time counting circuit 110j and the time measurement circuit 120j can be synchronized. On the other hand, if the operation state request information cannot be transmitted / received for some reason, the times of the clock circuits 110j and 120j cannot be synchronized. As described above, since it is assumed that the operating state information cannot be transmitted / received, the trap operating state providing device 110 lengthens the standby state of the wireless communication circuit 110h if the operating state request information cannot be transmitted / received. It is possible to send and receive operating state information.

2. Operation of Trap Operating State Management System 100 Regarding the operation of the trap operating state management system 100, a flowchart showing the operation of the trap operating state management device 120 shown in FIG. 13 and the operation of the trap operating state providing device 110 shown in FIG. This will be described with reference to a flowchart.

  As shown in FIG. 13, the CPU 120a of the trap operation state management device 120 determines whether or not the time of the time measuring circuit 120j exists in the request scheduled time description area of the operation state request schedule information (see FIG. 12) ( S1301). If the CPU 120a determines that the time of the timing circuit 120j is present in the request scheduled time description area of the operation state request schedule information, the CPU 120a obtains the value of the corresponding process system configuration device ID description area in the operation state request schedule information (S1303). .

  Further, the CPU 120a calculates a synchronization time based on the time of the time measuring circuit 120j (S1305). Here, the CPU 120a calculates, as a synchronization time, a time obtained by adding a time lag generated between the trap operation state management device 120 and the trap operation state providing device 110 during communication to the time of the time measuring circuit 120j. Note that the time lag generated between the trap operation state management device 120 and each trap operation state providing device 110 is stored and held in the HDD 120c as time lag information.

  The CPU 120a generates operation state request information (see FIG. 11) using the process system component device ID acquired in step S1303 and the synchronization time calculated in step S1305 (S1307). The CPU 120a transmits the generated operation state request information to the trap operation state providing device 110 corresponding to the steam trap T corresponding to the acquired process system component device ID (S1309).

  As shown in FIG. 14, the timing circuit 110j of the trap operation state providing device 110 has a time of measurement in the communication standby start time description area of the operation state provision time information (see FIG. 7) stored and held in the memory 110b. If it is determined that the communication standby start time has come (S1401), the CPU 110a is activated (S1403). The activated CPU 110a places the wireless communication circuit 110h in a standby state (S1405). When the CPU 110a acquires the operation state request information via the wireless communication circuit 110h (S1407), the CPU 110a determines the time of the time measuring circuit 110j when the operation state request information is acquired as the operation state request of the communication history information (see FIG. 9). In the information acquisition time description area, it is described as the latest record in association with the scheduled operation state provision time of the operation state provision time information (S1409). Further, the CPU 110a transmits the trap operation state information stored in the memory 110b to the trap operation state management device 120 via the wireless communication circuit 110h (S1411).

  CPU110a acquires the synchronous time of a synchronous time description area | region from the acquired operation state request information, and corrects the time of the time measuring circuit 110j to the acquired synchronous time (S1413). The CPU 110a ends the standby state of the wireless communication circuit 110h (S1415).

  If the CPU 110a determines that the standby end time in the standby end time description area of the operating state provision time information (see FIG. 7) has been reached without receiving the operating state request information (S1417), the communication history information (FIG. 9). The scheduled operation state provision time of the operation state provision time information is described as the latest record in the scheduled operation state provision time description area of (see) (S1419). The CPU 110a ends the standby state of the wireless communication circuit 110h (S1415).

  After completing the standby state of the wireless communication circuit 110h, the CPU 110a executes an operation state provision time setting process (S1421). The operation state provision time setting process will be described later. When the operation state provision time setting process is finished, the CPU 110a finishes its own operation (S1423) and enters a so-called sleep state. In the trap operation state providing device 110, even when the operation of the CPU 110a is finished, the time measuring circuit 110j continues the operation. Further, the processing from step S1401 to step S1423 in the trap operation state providing apparatus 110 is repeatedly executed until power cannot be supplied to the constituent circuits such as the CPU 110a and the time measuring circuit 110j.

Returning to FIG. 13, when the CPU 120a of the trap operation state management device 120 determines that the operation state information is received from the trap operation state providing device 110 that has transmitted the operation state request information (S1311), the received operation state information is In association with the sender's trap operation state providing device 110, it is described in the operation state information DB (see FIG. 10) together with the reception time (S1313). The CPU 120a repeats the processing from step S1301 to step S1315 until the operation is completed (S1317), including when it is determined that the operating state information has not been received for a predetermined time (S1315).

3. Operation state provision time setting process The operation state provision time setting process which CPU110a performs is demonstrated using FIG. The CPU 110a acquires the scheduled operation state provision time described in the scheduled operation state provision time description area of the operation state provision time information (see FIG. 7) (S1501). In addition, the CPU 110a acquires a scheduled operation state provision time next to the scheduled operation state provision time acquired in step S1501 from the operation state provision schedule information (see FIG. 8) (S1503).

  The CPU 110a stores the scheduled operation state provision time in the scheduled operation state provision time description area of the communication history information (see FIG. 9) in the operation state request information acquisition time description area of the record corresponding to the scheduled operation state provision time acquired in step S1501. It is determined whether a value is described (S1505). When the CPU 110a determines that a value is described in the operation state request information acquisition time description area, the CPU 110a sets “0” as the addition waiting time (S1507). In addition, the CPU 110a acquires a reference standby time (S1509).

  On the other hand, if the CPU 110a determines in step S1505 that no value is described in the operation state request information acquisition time description area, the scheduled operation state provision acquired in step S1501 in the scheduled operation state provision time description area in the communication history information. From the record in which the time is described, that is, the latest record, the scheduled operating state provision time description area before that record is described in the scheduled operating state provision time description area, and the value is described in the request information acquisition time description area The number of records up to the first record being recorded, that is, the record related to the scheduled operating state provision time when the operating state request information is received last is counted as the number of additions N (S1511). For example, in the case of the communication history information shown in FIG. 9, the number of records “2” between the latest record R1 and the record R3 when the operation state request information was last received is counted as the number N of additions.

  Returning to FIG. 15, the CPU 110a acquires the reference addition waiting time (S1513). The CPU 110a calculates a time obtained by multiplying the reference addition standby time by the number N of additions as the addition standby time (S1515). Then, the CPU 110a acquires a reference standby time (S1509).

  Thereafter, the CPU 110a calculates a standby start time and a standby end time (S1321). The CPU 110a sets the time obtained by subtracting the reference standby time and the additional standby time from the next scheduled operation state provision time acquired in step S1503 as the communication standby start time, and the next scheduled operation state provision time acquired in step S1503. The time obtained by adding the reference standby time and the additional standby time to the communication standby end time is calculated. The CPU 110a stores the scheduled operation state provision time acquired in step S1503 in the scheduled operation state provision time description area, the communication standby start time description area, and the communication standby end time description area of the operation state provision time information in step S1521, respectively. The calculated communication standby start time and communication standby end time are described respectively (S1523).

  For example, as shown in FIG. 16, scheduled operation state provision times T0, T1, T2, T3, and T4 are set in order, and communication standby start time ST0 and communication standby end time ET0 are set at the scheduled operation state provision time T0. Is set, and the operation state request information is received for the scheduled operation state provision time T0. In this case, the communication standby start time and the communication standby end time are calculated as follows for the scheduled operation state provision time T1 next to the scheduled operation state provision time T0.

  The CPU 110a acquires the scheduled operation state provision time T0 described in the scheduled operation state provision time description area of the operation state provision time information (see FIG. 7) (S1501). In addition, the CPU 110a acquires a scheduled operation state provision time T1 next to the scheduled operation state provision time acquired in step S1501 from the operation state provision schedule information (see FIG. 8) (S1503).

  Since the CPU 110a has acquired the operation state request information for the scheduled operation state provision time T0, the scheduled operation state provision time in the scheduled operation state provision time description area of the communication history information (see FIG. 9) is acquired in step S1501. It is determined that a value is described in the operation state request information acquisition time description area of the record corresponding to the operation state provision time (S1505), and “0” is set as the addition waiting time (S1507). In addition, the CPU 110a acquires the reference standby time WT (S1509).

  Thereafter, the CPU 110a sets the time obtained by subtracting the reference standby time WT and the additional standby time “0” from the next scheduled operation state provision time T1 acquired in step S1503 as the communication standby start time ST1, and the next acquired in step S1503. The time obtained by adding the reference standby time WT1 and the additional standby time “0” to the scheduled operating state provision time T1 is calculated as the communication standby end time ET1, respectively (S1521). The CPU 110a stores the scheduled operation state provision time T1 and the step S1521 acquired in step S1503 in the scheduled operation state provision time description area, the communication standby start time description area, and the communication standby end time description area of the operation state provision time information, respectively. The communication standby start time ST1 and the communication standby end time ET1 calculated in the above are respectively described (S1523).

  Thereby, the communication standby time TP1 from the communication standby start time ST1 to the communication standby end time ET1 can be set with respect to the scheduled operation state provision time T1. Here, the communication standby time TP1 is set by setting the reference standby time WT before and after the scheduled operation state provision time T1. Therefore, the communication standby time TP1 is the shortest communication standby time set by the trap operation state providing device 110.

  Furthermore, it is assumed that after receiving the operation state request information at the scheduled operation state provision time T0, the operation state request information cannot be received at the scheduled operation state provision time T1 to the scheduled operation state provision time T3. In this case, the communication standby start time and communication standby end time are calculated as follows for the scheduled operating state provision time T4.

  The CPU 110a acquires the scheduled operation state provision time T3 described in the scheduled operation state provision time description area of the operation state provision time information (see FIG. 7) (S1501). In addition, the CPU 110a obtains a scheduled operation state provision time T4 next to the scheduled operation state provision time obtained in Step S1501 from the operation state provision schedule information (see FIG. 8) (S1503).

  Since the CPU 110a has not acquired the operation state request information for the scheduled operation state provision time T3, the scheduled operation state provision time in the scheduled operation state provision time description area of the communication history information (see FIG. 9) is acquired in step S1501. It is determined that no value is described in the operation state request information acquisition time description area of the record corresponding to the operation state provision time T3 (S1505), and the communication history information is acquired in the scheduled operation state provision time description area in step S1501. From the record in which the scheduled operation state provision time T3 is described, that is, the latest record, the scheduled operation state provision time before the record is described in the scheduled operation state provision time description area, and the request information acquisition time description The first record whose value is described in the area, that is, the operation status request information was received last. Kino planned number of records until the record relating to the operating state providing time T0, that is, the number of records for scheduled operation state providing time T1, T2, T3, counted as the number of additions "3" (S1511).

  The CPU 110a acquires the reference addition waiting time AT (S1513). The CPU 110a calculates the addition waiting time “3 × AT” by multiplying the reference addition waiting time AT by the number of additions “3” (S1515). Then, the CPU 110a acquires the reference standby time WT (S1509).

  Thereafter, the CPU 110a obtains the time obtained by subtracting the reference waiting time WT and the additional waiting time “3 × AT” from the next scheduled operation state providing time T4 obtained in step S1503 as the communication waiting start time ST4, and is obtained in step S1503. The time obtained by adding the reference standby time WT and the additional standby time “3 × AT” to the next scheduled operating state provision time T4 is calculated as the communication standby end time ET4 (S1521). The CPU 110a stores the scheduled operation state provision time T4 and the step S1521 acquired in step S1503 in the scheduled operation state provision time description area, the communication standby start time description area, and the communication standby end time description area of the operation state provision time information, respectively. The communication standby start time ST4 and the communication standby end time ET4 calculated in the above are respectively described (S1523).

  Thereby, the communication standby time TP4 from the communication standby start time ST4 to the communication standby end time ET4 can be set with respect to the scheduled operating state provision time T4. Here, the communication standby time TP4 is set by setting the reference standby time WT + the additional standby time “3 × AT” around the scheduled operating state provision time T4. Therefore, the communication standby time TP4 is longer than the communication standby times TP1, TP2, and TP3.

As described above, the trap operation state providing device 110 cannot acquire the request information for some reason, and as a result, the situation in which the trap operation state information cannot be provided continuously occurs, so that the waiting time for acquiring the request information becomes longer. Set. Thereby, even if a deviation occurs between the trap operation state providing device 110 and the trap operation state management device 120, it is possible to set a waiting time enough to absorb the deviation, so that the request information is always received, The trap operation state information can be transmitted.

[Other embodiments]
(1) Target information transmission / reception management system 100: In the first embodiment, the trap operation state management system 100 is used as the target information transmission / reception management system, the trap operation state provision device 110 is the target information provision device, and the trap is the target information management device. The operating state management device 120 is illustrated as an example. However, the operation state management device 120 is not limited to the illustrated example as long as the communication device, the communication terminal, and the communication device transmit and receive predetermined target information at the scheduled target information provision time.

  In addition, although the steam trap T was shown as a process system component apparatus, if it is a process system component apparatus, it will not be limited to the illustration thing. For example, the pressure reducing valve G and the valve V shown in FIG. Furthermore, various fluid control devices such as a pump, a separator, and a filter may be used. Thereby, the operation state of apparatuses other than the steam trap T can also be monitored using the trap operation state providing devices 110 and 210.

  (2) Communication standby start time, communication standby end time: In the above-described first embodiment, the communication standby start time is advanced to delay the communication standby end time. It is not limited to the example as long as the communication standby time can be increased. For example, when it is known that the timing circuit 110j of the trap operation state providing device 110 is delayed with respect to the timing circuit 120j of the trap operation state management device 120, only the communication standby end time may be delayed. .

  In the first embodiment, the communication standby start time and the communication standby end time are calculated by setting the reference standby time of the same length before and after the scheduled operating state provision time, but the communication standby time is set. If possible, it is not limited to the examples. For example, the communication standby start time and the communication standby end time may be calculated by setting a reference standby time longer than the scheduled operation state provision time.

  Furthermore, in the above-described first embodiment, the communication standby is performed using the number of records from the latest record in the communication history information to the record related to the scheduled operation state provision time when the operation state request information is last received. Although the time is calculated, it is not limited to the example as long as the communication standby time can be calculated. For example, the communication standby time may be calculated according to the time length between the scheduled operating state provision times to be targeted.

(3) Synchronization time information: In the first embodiment, the operation state request information includes the synchronization time information and is transmitted. However, the synchronization time information may be transmitted separately from the operation state request information. .
Further, the synchronization time information may not be transmitted from the trap operation state management device 120, and the time may not be synchronized between the trap operation state providing device 110 and the trap operation state management device 120.

  (4) Setting the synchronization time to the timing circuit 110j: In the first embodiment, when the synchronization time is set to the timing circuit 110j in the trap operation state information providing device 110, the trap operation state information management device 120 transmits the synchronization time. Although the synchronization time information is generated by adding the time lag, the trap operation state information management device 120 transmits the time at which the operation state request information is transmitted as the synchronization time information, and the trap operation state information providing device 110 receives the synchronization time information. A time lag 110j may be synchronized by adding a transmission time lag to.

  In the first embodiment described above, the transmission time lag is added to synchronize the time. However, in some cases, such as when the trap operation state information providing device 110 and the trap operation state management device 120 are close to each other, the transmission time lag may be used. May not be added.

  (5) Operation state provision schedule information: In the first embodiment, the operation state provision schedule information is stored and held in advance in the trap operation state information provision apparatus 110. As long as the scheduled operating state provision time can be known, the present invention is not limited to the example. For example, it may be provided from the trap operation state management device 120 to the trap operation state providing device 110 at an appropriate time.

  Further, in the first embodiment described above, it is assumed that all scheduled operation state provision times are described in the operation state provision schedule information, but the trap operation state provision device 110 can know the scheduled operation state provision time. If it is a thing, it will not be limited to the thing of an illustration. For example, if the scheduled operation state provision time is set periodically, only the reference scheduled operation state provision time and period may be stored in advance in the trap operation state provision device 110.

  (6) Flowchart of each program: In the first embodiment, the trap operation state providing device 110 executes each process according to the flowcharts shown in FIGS. 14 and 15, and the trap operation state management device 120 is a flowchart shown in FIG. However, the present invention is not limited to the examples as long as the function and purpose of each process can be achieved.

(7) Structure of each data: In the above-described first embodiment, the trap operation state providing device 110 and the trap operation state management device 120 execute each process using the data shown in FIGS. The present invention is not limited to the examples as long as the functions and purposes of each process can be achieved.

The target information transmission / reception management system according to the present invention can be used, for example, in a trap operation state management system that manages the operation state of a steam trap in a steam plant.

DESCRIPTION OF SYMBOLS 100 Trap operation state management system 110 Trap operation state providing apparatus P101 Sensor part P103 Electrical component arrangement part P105 Intermediate shaft part 110a CPU
110b Memory 110h Wireless communication circuit 110i Sensor communication circuit 110j Timing circuit 120 Trap operation state management device 120a CPU
120b Memory 120c Hard disk drive 120d Keyboard 120e Mouse 120f Display 120g Optical drive 120h Wireless communication circuit 120j Timekeeping circuit 120p Optical media T Steam trap G Pressure reducing valve V Valve

Claims (6)

A target information transmission / reception management system having a target information providing device that provides predetermined target information based on a scheduled target information provision time, and a target information management device that acquires the target information from the target information providing device,
The target information management device includes:
Management side timekeeping section that keeps time
When it is determined that the time counted by the management-side timing unit has become the target information request time, the management-side transmission unit that transmits the target information request information for requesting transmission of the target information to the predetermined target information providing device,
When the target information is acquired from the target information providing apparatus that is the transmission target of the target information request information, the acquired target information is stored in association with the target information providing apparatus that transmitted the target information. Memory controller,
Have
The target information providing device includes:
Providing timekeeping section that measures time,
A receiving side receiving unit for receiving the target information request information;
When it is determined that the time measured by the providing side timing unit has reached the communication standby start time set for each scheduled target information providing time, the communication receiving state of the providing side receiving unit is started, and the scheduled target information When it is determined that the communication standby end time set for each provision time has come, a communication standby control unit that ends the communication standby state of the providing side reception unit,
When the target information request information is acquired, a target information transmission unit that transmits the target information,
Each scheduled target information provision time such that a communication standby time from the communication standby start time to the communication standby end time is longer than the communication standby time set corresponding to the previous scheduled target information provision time. A communication standby time setting unit for setting the communication standby time corresponding to
A target information transmission / reception management system. A target information providing device that provides predetermined target information based on scheduled target information provision time,
Providing timekeeping section that measures time,
A receiving side receiving unit that receives target information request information for requesting provision of target information;
When it is determined that the time measured by the providing side timing unit has reached the communication standby start time set for each scheduled target information providing time, the providing side receiving unit starts the communication standby state, and provides the scheduled target state provision When it is determined that the communication standby end time set for each time has come, a communication standby control unit that ends the communication standby state of the providing side reception unit,
When the target information request information is acquired, a target information transmission unit that transmits the target information,
At each scheduled target information provision time, the communication standby time from the communication standby start time to the communication standby end time becomes longer than the communication standby time set corresponding to the previous scheduled target state provision time. A communication standby time setting unit for setting the corresponding communication standby time;
A target information providing apparatus. In the object information providing apparatus according to claim 2, further,
Synchronous time information indicating the synchronous time counted in the target information management device that acquires the target information from the target information providing device via the provider receiving unit, and is generated for each target information request information A synchronization time setting unit that sets the time of the providing time measuring unit based on the synchronization time information,
Have
The providing side receiving unit further includes:
Receiving the synchronization time information;
The communication standby time setting unit further includes:
For each schedule target information provision time, determine whether or not the synchronization time information has been acquired, and if the synchronization time information has not been acquired in the communication standby time corresponding to the previous schedule target state provision time , Corresponding to the next scheduled target information provision time so that the communication standby time corresponding to the next scheduled target information provision time is longer than the communication standby time corresponding to the previous scheduled target information provision time Setting the communication waiting time;
A target information providing device characterized by the above. In the target information providing apparatus according to claim 2 or claim 3,
The communication standby time setting unit further includes:
When the synchronization time information is acquired in the communication standby time corresponding to the previous schedule target information provision time, the communication standby time corresponding to the next schedule target information provision time is a predetermined length. Setting the communication standby time corresponding to the next scheduled target information provision time so as to be a communication standby time;
A target information providing device characterized by the above. In the target information providing apparatus according to claim 3 or claim 4 ,
The communication standby time setting unit further includes:
If the synchronization time information is not acquired in the communication standby time corresponding to the previous schedule target information provision time, and before the communication standby start time set corresponding to the previous schedule target information provision time, The communication standby start time corresponding to the next scheduled target state provision time is set and / or after the communication standby end time set corresponding to the previous scheduled target state provision time Setting the communication standby end time corresponding to the next scheduled target information provision time so that
A target information providing device characterized by the above. A target information providing program for causing a computer to function as a target information providing device that acquires predetermined target information based on a scheduled target information provision time and provides the target information to a target information management device,
The computer,
Providing timekeeping section that measures time,
A receiving side receiving unit for receiving target information request information for requesting provision of the target information;
When it is determined that the time measured by the providing side timing unit is the communication standby start time set for each scheduled target information providing time, the communication receiving state of the providing side receiving unit is started, and the scheduled target state When it is determined that the communication standby end time set for each provision time has come, a communication standby control unit that ends the communication standby state of the providing side reception unit,
When the target information request information is acquired, a target information transmission unit that transmits the target information,
For each scheduled target information provision time, a communication standby time from the communication standby start time to the communication standby end time is set to be longer than the communication standby time set in the previous scheduled target information provision time Communication standby time setting section
Target information provision program to function as.

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