JP2011176416A - Remote monitored terminal and mobile object - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a remote monitored terminal which makes a remote monitoring device reliably collect data by enabling the remote monitored terminal, when supplying power, to inform the remote monitoring device even if the remote monitoring device does not grasp the state of the power supply of the remote monitored terminal while saving the power consumption of a battery, in the remote monitored terminal provided at a mobile object remotely monitored by communicating with the remote monitoring device, and to provide the mobile object provided with the same. <P>SOLUTION: The remote monitored terminal 113 is provided with: an acquisition unit 113c for acquiring mobile object information; a communication unit 113a for transmitting the mobile object information to the remote monitoring device 121; and a real time clock 113r connected to the battery BT whichever a power source switch SW is in an off-state or in an on-state. The remote monitored terminal 113 supplies the communication unit with power from the battery BT by the alarm function of the real time clock 113r. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a remote monitoring terminal device provided in a mobile body that is remotely monitored by communicating with the remote monitoring device, and a mobile body including the remote monitoring terminal device.

  A mobile remote monitoring system that performs communication between a remote monitoring device provided in a remote monitoring center and a remote monitoring terminal device provided in a mobile body (for example, a refrigerated container) and monitors the mobile body is conventionally known. (For example, refer to Patent Document 1).

  In such a moving body remote monitoring system, the driving state of the moving body is managed. For example, in the case where the moving body is a refrigerated container that transports cargo by means of transportation such as a vehicle or a ship, the refrigeration container relates to the refrigeration container such as the temperature in the refrigeration container room, the operation information indicating the operating state of the refrigeration apparatus, or the position information of the refrigeration container. By collecting the mobile object information with the remote monitoring terminal device provided in the refrigerated container and transmitting it from the remote monitoring terminal device to the remote monitoring device installed at the remote monitoring center via a communication network such as the Internet or a telephone line. The remote monitoring center can monitor the refrigerated container and grasp the situation.

JP 2005-172395 A JP 2007-67829 A

  Since such a conventional remote monitoring terminal device is normally driven by a battery mounted on a mobile object, it is required to suppress the power consumption of the battery as much as possible.

  FIG. 9 is a schematic block diagram illustrating an example of a connection configuration between the battery BT and the remote monitoring terminal device 113D in a mobile body 110D including the conventional remote monitoring terminal device 113D.

  As shown in FIG. 9, the battery BT is charged with electric power supplied from a power generator (not shown) with power from the power source (not shown) in the moving body 110D when the power source (not shown) is operating. It has become.

  The battery BT and the remote monitoring terminal device 113D are connected via a power connection line La. The battery BT is also connected to the electrical system 112D of the moving body 110D via the power switch SW provided in the moving body 110D. As a result, power is supplied from the battery BT to the electrical system 112D when the power is on, while power supply from the battery BT to the electrical system 112D is interrupted when the power is off, and the power switch SW Regardless of the power-on state and power-off state, power is always supplied from the battery BT to the remote monitoring terminal device 113D.

  In the moving body 110D as shown in FIG. 9, since electric power is always supplied from the battery BT to the remote monitoring terminal device 113D, if the operating time of the power source in the moving body 200 is short, the battery BT is below a specified low voltage. There has been a problem of inducing the inconvenience (so-called battery exhaustion).

  FIG. 10 is a schematic block diagram illustrating another example of the connection configuration between the battery BT and the remote monitoring terminal device 113D in the mobile object 110E including the conventional remote monitoring terminal device 113D.

  10 is connected to the power connection line La1 connected between the remote monitoring terminal device 113D and the battery BT and between the electrical system 112D and the battery BT in the mobile body 110D shown in FIG. The power switch SW is connected to the power supply connection line La2. Thereby, when the power is on, power is supplied from the battery BT to the remote monitoring terminal device 113D and the electrical system 112D, while when the power is off, power is supplied from the battery BT to the remote monitoring terminal device 113D and the electrical system 112D. It is designed to be blocked. That is, the power supply from the battery BT is stopped in conjunction with the power-off state of the power switch SW.

  The mobile unit 110E as shown in FIG. 10 has a problem that the mobile unit remote monitoring system cannot be operated when the power switch SW is in a power-off state.

  With respect to such a problem, Patent Document 2 discloses a parent device that functions as a remote monitoring device in a child device that functions as a remote monitoring terminal device, using a battery as a driving power source, and getting up intermittently with a predetermined sleep period interposed therebetween. A battery-driven communication device is disclosed that waits for reception of a paging signal from a machine and performs setting for extending the sleep time when the detected battery output voltage does not reach a predetermined voltage.

  However, in the battery-driven communication device described in Patent Document 2, there is a problem that data cannot be collected by the remote monitoring device unless the parent device side grasps the power supply state of the child device and starts communication.

  Therefore, the present invention is a remote monitoring terminal device provided in a mobile body that is remotely monitored by communicating with the remote monitoring device, and the remote monitoring device performs remote monitoring while suppressing power consumption of the battery. Even if the power supply state of the terminal device is not grasped, the remote monitoring terminal device side can issue a report to the remote monitoring device during power supply, and thus the remote monitoring terminal can reliably collect data by the remote monitoring device It is an object of the present invention to provide a device and a moving body including the device.

  In order to achieve the above object, the solution of the present invention is provided in a mobile body that is remotely monitored by communicating with a remote monitoring device, and is connected to a battery by a power switch. On the premise of a remote monitoring terminal device that can be selectively switched between a power-on state and a power-off state and a mobile body equipped with the remote monitoring terminal device, an acquisition unit that acquires mobile body information related to the mobile body for the remote monitoring terminal device; A communication unit that transmits the mobile object information acquired by the acquisition unit to the remote monitoring device.

  The solution of the present invention is premised on a mobile body that is remotely monitored by communicating with a remote monitoring device, and is connected between the remote monitoring terminal device, a battery, and the remote monitoring terminal device. Power switch.

  The remote monitoring terminal device includes a real-time clock connected to the battery regardless of a power-off state and a power-on state of the power switch, and the power from the battery is supplied by an alarm function of the real-time clock. Supply to the communication unit.

  In this specific matter, since the real-time clock is connected to the battery regardless of the power-off state and the power-on state of the power switch, at least one of the components of the remote monitoring terminal device is in the power-off state. Electric power from the battery can be supplied to the real-time clock, thereby reducing the power consumption of the battery as much as possible. In addition, since the power from the battery is supplied to the communication unit by the alarm function of the real-time clock, the mobile body information can be spontaneously transmitted from the communication unit to the remote monitoring device.

  Here, the “moving body” may be any moving body that can be monitored. As this moving body, working machines, such as a refrigeration container, a construction machine, and an agricultural machine, can be mentioned, for example. However, the present invention is not limited to this.

  In addition, examples of the moving body information include at least one of information on an operating state of the moving body, position information of the moving body, and speed information of the moving body. For example, when the mobile body is a refrigerated container, position information and speed information of the refrigerated container, temperature information in the refrigerated container room, and operation information related to the operating state of the refrigeration apparatus can be given. Moreover, when the said mobile body is a working machine, the working machine's position information and speed information, working machine failure faults, maintenance and operating information related to the working machine's operating state can be mentioned. However, the present invention is not limited to this.

  In the present invention, the power from the battery is periodically supplied to the communication unit at an alarm time preset by the alarm function of the real-time clock.

  In this specific matter, when the alarm time comes, the mobile unit information can be periodically transmitted from the communication unit to the remote monitoring device, whereby data can be collected periodically by the remote monitoring device. it can.

  In the present invention, the power from the battery is also supplied to the acquisition unit by the alarm function of the real-time clock.

  In this specific matter, when the power from the battery is supplied to the acquisition unit by the alarm function of the real-time clock, the acquisition unit acquires the latest mobile unit information, and the acquired latest mobile unit information is obtained. It can be transmitted from the communication unit to the remote monitoring device.

  In the present invention, the remote monitoring terminal device includes a control unit connected to the battery regardless of a power-off state and a power-on state of the power switch.

  In this specific matter, when the power is off, power from the battery can be supplied to at least the real-time clock and the control unit among the components of the remote monitoring terminal device.

  In the present invention, the control unit selectively switches between a communication unit power supply state that supplies power from the battery to the communication unit and a communication unit cutoff state that blocks power supply from the battery to the communication unit. It is said that.

  In this specific matter, power supply from the battery to the communication unit can be controlled by an instruction from the control unit.

  In the present invention, the control unit is configured to monitor whether the power switch is in a power-off state or a power-on state.

  In this specific matter, when the control unit is in the power-off state, the power from the battery can be reliably supplied to the communication unit.

  In the present invention, the control unit switches to the communication unit power supply state by an alarm function of the real-time clock when the power is off.

  In this specific matter, the power from the battery can be supplied to the communication unit, and accordingly, when the power is off, the remote control unit is instructed by the control unit based on the alarm function of the real-time clock. The mobile body information can be transmitted spontaneously to the monitoring device.

  In the present invention, the control unit selectively switches between an acquisition unit power supply state that supplies power from the battery to the acquisition unit and an acquisition unit cutoff state that blocks power supply from the battery to the acquisition unit. It is said that.

  In this specific matter, power supply from the battery to the acquisition unit can be controlled by an instruction from the control unit.

  In the present invention, the control unit switches to the acquisition unit power supply state by an alarm function of the real-time clock when the power is off.

  In this specific matter, the power from the battery can be supplied to the acquisition unit, whereby the power from the battery is instructed by the control unit based on the alarm function of the real-time clock when the power is off. When supplied to the acquisition unit, the latest mobile unit information can be acquired by the acquisition unit, and the acquired latest mobile unit information can be transmitted from the communication unit to the remote monitoring device.

  In the present invention, the control unit is configured to monitor the voltage level of the battery.

  In this specific matter, it is possible to control power supply to the communication unit according to the voltage level of the battery.

  In the present invention, the control unit controls power supply to the communication unit based on a voltage level of the battery and a preset first voltage level in the power-off state.

  With this specific matter, it is possible to extend the time required for the battery to become inconvenient (so-called battery rise) below the specified low voltage or below the specified low voltage. For example, when the voltage level of the battery is equal to or lower than the first voltage level or lower than the first voltage level, the time required for the battery to run out is reduced by stopping power supply to the communication unit. It becomes possible to extend as much as possible.

  By the way, in the present invention, for example, when the acquisition unit is connected to the battery regardless of the power-off state and the power-on state of the power switch, the power consumption of the battery increases accordingly.

  From this point of view, in the present invention, the control unit monitors the voltage level of the battery and supplies power to the acquisition unit from the battery, and supplies power from the battery to the acquisition unit. It is configured to selectively switch between an acquisition unit cutoff state that cuts off the supply, and when the power supply is off, the voltage level of the battery is equal to or lower than a preset second voltage level, or the second voltage When the level falls below the level, the acquisition unit is switched off. The second voltage level is preferably a value different from the first voltage level. For example, the second voltage level is preferably equal to or greater than the first voltage level.

  In this specific matter, when the voltage level of the battery is equal to or lower than the second voltage level or when the voltage level is lower than the second voltage level, power supply to the acquisition unit can be stopped. Power consumption can be suppressed. For example, when the voltage level of the battery is lower than the second voltage level or lower than the second voltage level, the mobile unit information is transmitted from the communication unit to the remote monitoring device by the alarm function of the real-time clock. Except when doing so, the power supply to the acquisition unit can be stopped. Thereby, the power consumption of the battery can be suppressed.

  In the present invention, the acquisition unit includes a position information detection unit that detects position information of the moving body, and the position information detection unit is connected to the battery regardless of a power-off state and a power-on state of the power switch. The control unit is connected and switches to the communication unit power supply state based on the position information from the position information detection unit and preset position information when the power is off.

  In this specific matter, when the power is off, the power from the battery can be supplied to the communication unit, and thereby the abnormal position information of the moving body can be notified to the remote monitoring device. For example, when the set position information is an area where the moving body is to be located, it is determined that the position information from the position information detection unit is located outside the area when the power is off. In this case, the position information can be transmitted from the communication unit to the remote monitoring device by supplying power from the battery to the communication unit. For example, it can be used for theft detection of the mobile object.

  In the present invention, the acquisition unit includes a speed information detection unit that detects speed information of the moving body, and the speed information detection unit is connected to the battery regardless of a power-off state and a power-on state of the power switch. The control unit is connected and switches to the communication unit power supply state based on the speed information from the speed information detection unit and preset speed information when the power is off.

  In this specific matter, when the power is off, the power from the battery can be supplied to the communication unit, and thereby the abnormal speed information of the moving body can be notified to the remote monitoring device. For example, the set speed information may be an upper limit value and / or a lower limit value of a set speed when the moving body moves (specifically, when the moving body is transported, Speed range, or a speed range in which the mobile body can run when the mobile body is traveling), when the power is off, the speed information from the position information detection unit is equal to or higher than a set speed upper limit value or If it is determined that the upper limit value is exceeded and / or less than the lower limit value or less than the lower limit value, the power from the battery is supplied to the communication unit and the speed information is transmitted from the communication unit to the remote monitoring device. Thus, the remote monitoring device side regards that the moving state of the moving body is not the original conveying state, and can be used for detecting theft of the moving body, for example.

  As described above, according to the present invention, the real-time clock is connected to the battery regardless of the power-off state and the power-on state of the power switch, so that the remote monitoring terminal is in the power-off state. Power from the battery can be supplied to at least the real-time clock among the components of the apparatus, and thereby the power consumption of the battery can be suppressed as much as possible. In addition, the mobile unit information can be spontaneously transmitted from the communication unit to the remote monitoring device by supplying power from the battery to the communication unit by an alarm function of the real-time clock.

  Accordingly, while the power consumption of the battery is suppressed, the remote monitoring terminal device issues a notification to the remote monitoring device at the time of power supply even if the remote monitoring device does not grasp the power supply state of the remote monitoring terminal device. In this way, data can be reliably collected by the remote monitoring device.

It is a perspective view which shows roughly the mobile body remote monitoring system which monitors a refrigeration container remotely. It is a block diagram which shows the structure of the refrigeration container in a mobile body remote monitoring system. It is a block diagram which shows the structure of the remote monitoring center in a mobile remote monitoring system. It is a detailed block diagram which shows the detailed structure of the remote monitoring terminal device of 1st Embodiment. It is a flowchart which shows the operation example of an example of 1st Embodiment. It is a detailed block diagram which shows the detailed structure of the remote monitoring terminal device of 2nd Embodiment. It is a flowchart which shows the operation example of 2nd Embodiment. It is a detailed block diagram which shows the detailed structure of the remote monitoring terminal device of 3rd Embodiment. It is a flowchart which shows the operation example of 3rd Embodiment. It is a flowchart which shows the operation example of the modification 1 of 3rd Embodiment. It is a flowchart which shows the operation example of the modification 2 of 3rd Embodiment. It is a flowchart which shows the operation example of the modification 3 of 3rd Embodiment. It is a flowchart which shows the operation example of the modification 4 of 3rd Embodiment. It is a detailed block diagram which shows the detailed structure of the remote monitoring terminal device of 4th Embodiment. It is a flowchart which shows the operation example of 4th Embodiment. It is a flowchart which shows the operation example of the modification 1 of 4th Embodiment. It is a flowchart which shows the operation example of the modification 2 of 4th Embodiment. It is a flowchart which shows the operation example of the modification 3 of 4th Embodiment. It is a flowchart which shows the operation example of the modification 4 of 4th Embodiment. It is a flowchart which shows the operation example of 5th Embodiment. It is a flowchart which shows the operation example of 6th Embodiment. It is a schematic block diagram which shows an example of the connection structure of a battery and a remote monitoring terminal device in the mobile body provided with the conventional remote monitoring terminal device. It is a schematic block diagram which shows the other example of a connection structure of a battery and a remote monitoring terminal device in the mobile body provided with the conventional remote monitoring terminal device.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings by taking a refrigeration container as a moving body. The following embodiments are examples embodying the present invention, and are not of a nature that limits the technical scope of the present invention.

  FIG. 1 is a perspective view schematically showing a mobile remote monitoring system 100 that remotely monitors refrigeration containers 110. FIG. 2 is a block diagram showing the configuration of the refrigeration containers 110 in the mobile body remote monitoring system 100. FIG. 3 is a block diagram showing the configuration of the remote monitoring center 120 in the mobile remote monitoring system 100.

  As shown in FIG. 1, a mobile remote monitoring system (hereinafter simply referred to as a remote monitoring system) 100 includes one or a plurality of (here, a plurality of) refrigeration containers that are transported on a transportation vehicle such as a freight train. (An example of a moving body) 110,... And a remote monitoring device 121 provided in the remote monitoring center 120 located far away from the refrigeration containers 110,. Here, the refrigerated containers 110,... Are mounted on a transport vehicle and transported, but the refrigerated containers 110,...

  As shown in FIG. 2, the refrigeration containers 110,... Include a refrigeration container chamber 111 for storing refrigerated goods, a refrigeration apparatus 112 for cooling the inside of the refrigeration container chamber 111, and a communication unit (specifically, a communication module) 113 a. And a remote monitoring terminal device 113.

  As shown in FIG. 3, the remote monitoring device 121 provided in the remote monitoring center 120 includes a communication unit (specifically, a communication module) 121a.

  As shown in FIG. 1, the remote monitoring terminal device 113 and the remote monitoring device 121 are connected to each other by the communication units 113a and 121a via a communication network 130 such as a telephone line or the Internet. Information can be transmitted and received between the device 113 and the remote monitoring device 121, whereby the remote monitoring center 120 can remotely monitor the refrigerated containers 110. The communication network 130 may be a wired communication network, a wireless communication network, or a combination of a wired communication network and a wireless communication network.

  As shown in FIG. 2, the refrigeration device 112 in the refrigeration container 110 includes a control device 112a, an engine (for example, a gas engine heat pump air conditioner (GHP)) 112b, a generator 112c, and a power switch SW. It is installed. The refrigeration apparatus 112 is configured to perform operation start / stop operation and control of the operation state by driving the engine 112b in addition to temperature management in the refrigeration container chamber 111. That is, although illustration is abbreviate | omitted for the refrigeration apparatus 112, further, an engine exhaust pipe, a fuel tank, a ventilation fan, setting apparatuses, such as internal temperature, a control box, an accumulator, a motor, a compressor, an external heat exchanger, an internal A heat exchanger is provided, and cooling air is sent into the freezing container chamber 111.

  In the operating state (engine operating state) of the refrigeration apparatus 112, the battery BT is appropriately charged with the electric power supplied from the generator 112c.

  The power switch SW provided in the refrigeration apparatus 112 is in a power-on state in which power is supplied from the battery BT to the remote monitoring terminal device 113 and the control device 112a, and power from the battery BT to the remote monitoring terminal device 113 and the control device 112a. The power-off state in which the supply is shut off is selectively switched.

  Specifically, the battery BT is connected to both the power connection line L1 connected to the remote monitoring terminal device 113 and the power connection line L2 connected to the control device 112a via the power switch SW.

  In this example, the power switch SW is a so-called key switch, and the “ON” terminal indicates the connection terminals of the power connection lines L1 and L2 in the engine operating state. The “ACC (accessory)” terminal indicates a connection terminal of the power supply connection line L3 with the control device 112a when the engine is stopped. An “OFF” terminal indicates a terminal when the power is off.

  As will be described later, regardless of the state of the power switch SW, the battery BT and some components of the remote monitoring terminal device 113 are connected via the power connection line Lbt. Thus, some components of the remote monitoring terminal device 113 are constantly supplied with power from the battery BT.

  The control device 112a controls the operation state to the refrigeration container chamber 111, monitors the state of the refrigeration container chamber 111 based on the operation information of the refrigeration operation, and appropriately controls the operation state to the refrigeration container chamber 111.

  Specifically, the control device 112a controls the operation state of the refrigerated container chamber 111 based on the temperature in the refrigerated container chamber 111 detected by a temperature detector (not shown). Further, the control device 112a appropriately determines whether or not trouble has occurred.

[First Embodiment]
FIG. 4A is a detailed block diagram illustrating a detailed configuration of the remote monitoring terminal device 113 according to the first embodiment.

  As shown in FIG. 4A, in addition to the communication unit 113a, the remote monitoring terminal device 113 includes a control unit 113b that performs transmission / reception of data during communication, various input / output controls and control of arithmetic processing, and movement related to the refrigeration container 110. An acquisition unit 113c for acquiring body information and a real-time clock 113r are provided.

  The communication unit 113a, the control unit 113b, and the acquisition unit 113c are provided on the control board 114. The control board 114 has a power supply line (not shown) connected to the power supply connection line L1. The power connection line L1 is connected to the “ON” terminal of the power switch SW. In the first embodiment, the power connection line L1 is connected to the pattern wiring of the power line formed on the control board 114. Note that at least one of the communication unit 113a, the control unit 113b, and the acquisition unit 113c may be provided on an individual substrate.

  The real-time clock 113r is connected to the battery BT regardless of the power-off state and the power-on state of the power switch SW. Specifically, the battery BT and the input side power supply line (not shown) of the real-time clock 113r are connected by a power supply connection line L4 (Lbt). Thus, the real-time clock 113r is always supplied with power from the battery BT.

  Further, the power supply line (not shown) of the output side of the real time clock 113r and the power supply line (not shown) of the communication unit 113a are connected by the power supply connection line L5.

  The communication unit 113a can communicate with the same communication protocol (communication protocol) as the communication unit 121a of the remote monitoring device 121 in the remote monitoring center 120. Data transmitted / received during communication is converted by the communication unit 113a so as to follow the communication protocol. And the communication part 113a transmits the mobile body information acquired in the acquisition part 113c to the remote monitoring apparatus 121. FIG.

  Here, the acquisition unit 113c includes a position information detection unit 113f that detects the position information of the refrigeration container 110. The acquisition unit 113c includes a speed information detection unit 113g that detects speed information of the refrigerated container 110. That is, the moving body information includes position information and speed information of the refrigeration container 110. The moving body information may include operation information from the refrigeration apparatus 2 and trouble information in the refrigeration apparatus 112.

  Specifically, the acquisition unit 113c (113f, 113g) has a GPS (Global Positioning System) receiver, and constitutes a positioning system together with a GPS satellite. The acquisition unit 113c can measure position information (for example, latitude and longitude) of the current position of the refrigerated container 110 by receiving radio waves from a plurality of GPS satellites and determining the distance from each. Moreover, the speed information of the refrigeration container 110 can be measured by determining the displacement per unit time.

  The control unit 113b includes a processing unit 113p composed of a microcomputer such as a CPU (Central Processing Unit), and a storage device such as a ROM (Read Only Memory), a RAM (Random Access Memory), and a data rewritable nonvolatile memory. Part 113m.

  The control unit 113b controls the operation of various components by causing the processing unit 113p to load and execute a control program stored in advance in the ROM of the storage unit 113m on the RAM of the storage unit 113m. . The RAM of the storage unit 113m provides a work area for work to the processing unit 113p.

  In addition, the storage unit 113m stores the moving body information acquired by the acquisition unit 113c. Here, moving body information including position information and speed information of the refrigeration container 110 is stored in the storage unit 113m as needed. The mobile unit information is converted into a format according to the communication protocol of the communication unit 121a of the remote monitoring device 121 by the communication unit 113a at a predetermined time or under a predetermined condition as will be described later. The data is transmitted to the remote monitoring device 121 via the communication unit 121a. Thereby, the mobile body information (for example, the current position and speed of the refrigeration container 110) on the remote monitoring center side can be confirmed.

  Incidentally, since the remote monitoring terminal device 113 is required to suppress the power consumption of the battery BT as much as possible, the remote monitoring terminal device 113 is configured as follows.

  That is, the alarm function of the real time clock 113r supplies power from the battery BT to the communication unit 113a.

  Specifically, an alarm time is preset in the real time clock 113r. That is, in the real-time clock 113r, when the current time is not the alarm time, the input-side power line and the output-side power line are in a non-conductive state. On the other hand, in the real-time clock 113r, when the current time becomes the alarm time, the input-side power line and the output-side power line become conductive. Thereby, the real time clock 113r can supply the power from the battery BT to the communication unit 113a when the current time becomes the alarm time.

(Operation example of the first embodiment)
Next, an operation example of the first embodiment will be described. FIG. 4B is a flowchart illustrating an operation example of the first embodiment.

  In the flowchart shown in FIG. 4B, first, the power supply to the communication unit 113a is cut off by the real-time clock 113r (step S1).

  Next, it is determined whether or not the current time of the real-time clock 113r is an alarm time (step S2), and the process waits until the current time becomes the alarm time (step S2: No). When the current time becomes the alarm time (step S2: Yes), the real-time clock 113r supplies power to the communication unit 113a through the power connection line L5 (step S3).

  The mobile unit information stored in the storage unit 113m is transmitted to the remote monitoring device 121 via the communication unit 113a and reported to the remote monitoring center 120 (step S4), and the process proceeds to step S1.

[Second Embodiment]
FIG. 5A is a detailed block diagram illustrating a detailed configuration of the remote monitoring terminal device 113 according to the second embodiment. Note that in FIG. 5A and each drawing described later, substantially the same components are denoted by the same reference numerals, and description thereof is omitted.

  The remote monitoring terminal device 113 of the second embodiment shown in FIG. 5A is similar to the first embodiment shown in FIG. 4A in that the output side power line (not shown) of the real-time clock 113r and the power line (not shown) of the acquisition unit 113c. Are connected by a power supply connection line L6.

  In the second embodiment, the power from the battery BT is also supplied to the acquisition unit 113c by the alarm function of the real-time clock 113r.

  Specifically, the real-time clock 113r can supply power from the battery BT to the acquisition unit 113c when the current time becomes the alarm time.

(Operation example of the second embodiment)
Next, an operation example of the second embodiment will be described. FIG. 5B is a flowchart illustrating an operation example of the second embodiment.

The flowchart shown in FIG. 5B includes steps S1a, S3a, and S4a in place of steps S1, S3, and S4 in the flowchart shown in FIG. 4B. That is, in step S1a, the communication unit 113a and the real-time clock 113r The power supply to the acquisition unit 113c is cut off. In step S3a, the real-time clock 113r supplies power to the communication unit 113a and the acquisition unit 113c through the power supply connection lines L5 and L6. In step S4a, the latest moving body information acquired by the acquisition unit 113c is transmitted to the remote monitoring device 121 via the communication unit 113a and reported to the remote monitoring center 120. Note that the latest mobile information acquired by the acquisition unit 113c is stored in the storage unit 113m.

[Third Embodiment]
FIG. 6A is a detailed block diagram illustrating a detailed configuration of the remote monitoring terminal device 113 according to the third embodiment.

  The remote monitoring terminal device 113 of the third embodiment shown in FIG. 6A removes the power supply connection line L5 in the first embodiment shown in FIG. 4A, while providing a switching unit (for example, an electromagnetic relay) 113d by the control unit 113b. The power supply to the communication unit 113a is controlled by switching the switching unit 113d.

  In the third embodiment, the switching operation of the switching unit 113d is controlled by the control unit 113b based on an alarm signal output from the real-time clock 113r.

  Specifically, the real time clock 113r outputs an alarm signal when the alarm time comes. The real time clock 113r has a signal output line (not shown) for an alarm signal. A signal output line of the real time clock 113r and a signal input line (not shown) of the control unit 113b are connected by a signal connection line SN1.

  The control unit 113b and the switching unit 113d are connected to the battery BT regardless of the power-off state and the power-on state of the power switch SW in addition to the real-time clock 113r. Specifically, the battery BT and a power supply line (not shown) of the control unit 113b are connected by a power supply connection line L7 (Lbt). The battery BT and the input side power supply line (not shown) of the switching unit 113d are connected by a power supply connection line L8 (Lbt). Thereby, the control unit 113b and the switching unit 113d are constantly supplied with power from the battery BT. The output side power line (not shown) of the switching unit 113d and the power line of the communication unit 113a are connected by the power connection line L9.

  The switching unit 113d is configured to be able to switch between a communication unit power supply state that supplies power from the battery BT to the communication unit 113a and a communication unit cutoff state that blocks power supply from the battery BT to the communication unit 113a.

  The switching unit 113d is switched by an operation signal for switching operation. The switching unit 113d has a signal input line (not shown) through which an operation signal is input. A signal input line (not shown) of the switching unit 113d and a signal output line (not shown) of the control unit 113b are connected by a signal connection line SN2.

  When there is no alarm signal from the real-time clock 113r, the control unit 113b outputs a signal for setting the switching unit 113d to the communication unit cutoff state to the signal output line. On the other hand, when the control unit 113b receives an alarm signal from the real-time clock 113r, the control unit 113b outputs a signal for setting the switching unit 113d to the communication unit power supply state to the signal output line. Thus, the control unit 113b performs the switching operation of the switching unit 113d. Note that the switching unit 113d may be a switching semiconductor element incorporated on the control board 114 or the control unit 113b.

  In the third embodiment, the control unit 113b monitors whether the power switch SW is in a power-off state or a power-on state.

  Specifically, the control unit 113b includes a detection unit 113e that detects a voltage applied to the power connection line L2 connected to the “ON” terminal of the power switch SW. The detection unit 113e may be provided separately from the control unit 113b.

  A signal input line (not shown) of the detection unit 113e of the control unit 113b and the power supply connection line L2 are connected by a signal connection line SN3. The controller 113b determines that the power switch SW is in the power-off state when no voltage is applied to the power connection line L2. On the other hand, the control unit 113b determines that the power switch SW is in the power-on state when a voltage is applied to the power connection line L2. Thus, the control unit 113b monitors the power-off state and the power-on state of the power switch SW. Note that the mechanical position of the power switch SW may be detected to monitor the power-off state and the power-on state.

  In the third embodiment, the control unit 113b selectively selects an acquisition unit power supply state that supplies power from the battery BT to the acquisition unit 113c and an acquisition unit cutoff state that blocks power supply from the battery BT to the acquisition unit 113c. It is set as the structure switched to. This switching operation is performed by a switching semiconductor element (not shown) incorporated on the control board 114. In addition, you may comprise a switching semiconductor element like the above-mentioned switching part (for example, electromagnetic relay) 113d.

  When the control unit 113b determines that the power switch SW is in the power-off state based on the detection result of the detection unit 113e, the control unit 113b switches the switching unit 113d to the communication unit power supply state by an alarm signal from the real-time clock 113r.

(Operation example of the third embodiment)
Next, an operation example of the third embodiment will be described. FIG. 6B is a flowchart illustrating an operation example of the third embodiment.

  The flowchart shown in FIG. 6B is different from the flowchart shown in FIG. 4B in that steps S1b, S2b, and S3b are provided instead of steps S1, S2, and S3, and step S101 is provided before the process of step S1b. Step S5 is provided as a process after the condition determination.

  That is, in step S101, based on the voltage state of the signal connection line SN3 detected by the detection unit 113e, the control unit 113b determines whether the power switch SW is in an off state, and the power switch SW is in a power off state. If there is (step S101: Yes), the process proceeds to step S1b. On the other hand, when the power switch SW is in the power-on state (step S101: No), the process proceeds to step S5.

  In step S1b, the switching unit 113d is controlled by an instruction signal from the control unit 113b to cut off the power supply to the communication unit 113a, and the control unit 113b sets the acquisition unit cutoff state to supply power to the acquisition unit 113c. Shut off.

  In step S2b, the control unit 113b determines whether there is an alarm signal from the real time clock 113r.

  In step S3b, when there is an alarm signal from the real-time clock 113r, the switching unit 113d is controlled by an instruction signal transmitted from the control unit 113b through the signal connection line SN2, and power is supplied to the communication unit 113a through the power connection line L9. To do.

  In step S5, the control unit 113b controls the switching unit 113d to supply power to the communication unit 113a through the power supply connection line L9. Further, the acquisition unit 113c is set to the acquisition unit power supply state by an instruction signal from the control unit 113b. To supply power. And after the process of step S4, S5, it transfers to step S101.

(Modification 1 of 3rd Embodiment)
In the first modification of the third embodiment, the power from the battery BT is also supplied to the acquisition unit 113c by the alarm function of the real-time clock 113r.

  Specifically, when the control unit 113b determines that the power switch SW is in the power-off state based on the detection result of the detection unit 113e, the control unit 113b switches to the acquisition unit power supply state by an alarm signal from the real-time clock 113r.

(Operation Example of Modification 1 of Third Embodiment)
Next, an operation example of Modification 1 of the third embodiment will be described. FIG. 6C is a flowchart illustrating an operation example of Modification 1 of the third embodiment.

  The flowchart shown in FIG. 6C is different from the flowchart shown in FIG. 6B in that steps S3c and S4a are provided instead of steps S3b and S4.

  That is, in step S3c, when there is an alarm signal from the real time clock 113r, the control unit 113b controls the switching unit 113d to supply power to the communication unit 113a through the power supply connection line L9, and further to the control unit 113b. Then, power is supplied to the acquisition unit 113c.

  Note that step S4a is the same as the process of step S4a shown in FIG. 5B, and a description thereof will be omitted here.

(Modification 2 of 3rd Embodiment)
In the second modification of the third embodiment, the control unit 113b is configured to monitor the voltage level (voltage value) of the battery BT and determine whether to supply power to the communication unit 113a.

  Specifically, the control unit 113b includes a measurement unit that measures a voltage applied to the power supply connection line L7. Note that the measurement unit also serves as the detection unit 113e described above. For this reason, in the following description, a measurement part is called detection part (measurement part) 113e. Further, the first voltage level (voltage value) is stored (set) in advance in the storage unit 113m.

  Then, when the voltage level of the battery BT detected by the detection unit (measurement unit) 113e is equal to or lower than the first voltage level stored in the storage unit 113m in the power-off state, the control unit 113b Even if is the alarm time, power is not supplied to the communication unit 113a.

(Operation Example of Modification 2 of Third Embodiment)
Next, an operation example of Modification 2 of the third embodiment will be described. FIG. 6D is a flowchart illustrating an operation example of Modification 2 of the third embodiment.

  The flowchart shown in FIG. 6D is obtained by providing step S102 between step S2b and step S3b in the flowchart shown in FIG. 6B.

  That is, in step S102, it is determined whether or not the voltage level of the battery BT detected by the detection unit (measurement unit) 113e is equal to or lower than the first voltage level stored in the storage unit 113m, and the detected voltage level of the battery BT. Is equal to or lower than the first voltage level (step S102: Yes), the process proceeds to step S101. On the other hand, when the detected voltage level of the battery BT exceeds the first voltage level (step S102: No), the process proceeds to step S3b.

(Modification 3 of 3rd Embodiment)
In the third modification of the third embodiment, the control unit 113b is configured to monitor the voltage level (voltage value) of the battery BT and determine whether to supply power to the acquisition unit 113c.

  Specifically, the control unit 113b includes a detection unit (measurement unit) 113e as in Modification 2 of the third embodiment. The storage unit 113m stores (sets) a second voltage level (voltage value) in advance. Here, the second voltage level is set to a value higher than the first voltage level.

  When the power level is off, the control unit 113b obtains an acquisition unit when the voltage level of the battery BT detected by the detection unit (measurement unit) 113e is equal to or lower than the second voltage level stored in the storage unit 113m. The power supply to 113c is cut off.

(Operation Example of Modification 3 of Third Embodiment)
Next, an operation example of Modification 3 of the third embodiment will be described. FIG. 6E is a flowchart illustrating an operation example of Modification 3 of the third embodiment.

  In the flowchart shown in FIG. 6B, step S100 is provided before the process of step S101 in the flowchart shown in FIG. 6B, and steps S1c and S4a are provided instead of steps S1b and S4, respectively, and between step S3b and step S4a. Step S103 is provided, and further, steps S104, S105, and S4 are provided as processing after the condition determination in step S103.

  That is, in step S100, the control unit 113b supplies power to the acquisition unit 113c, and the process proceeds to step S101.

  In step S1c, the control unit 113b controls the switching unit 113d to cut off the power supply to the communication unit 113a.

  In step S103, it is determined whether the voltage level of the battery BT detected by the detection unit (measurement unit) 113e is equal to or lower than the second voltage level stored in the storage unit 113m, and the detected voltage level of the battery BT is the first voltage level. When the voltage level is equal to or lower than 2 voltage levels (step S103: Yes), the process proceeds to step S105. On the other hand, when the detected voltage level of the battery BT exceeds the second voltage level (step S103: No), the process proceeds to step S104.

  In step S104, the control unit 113b supplies power to the acquisition unit 113c, and the process proceeds to step S4a. Note that step S4a is the same as the process of step S4a shown in FIG. 5B, and a description thereof will be omitted here. In step S105, the control unit 113b cuts off the power supply to the acquisition unit 113c, and the process proceeds to step S4. And after the process of step S4, 4a, it transfers to step S101.

(Modification 4 of 3rd Embodiment)
In the fourth modification of the third embodiment, the control unit 113b determines whether to supply power to the communication unit 113a based on the moving body information (here, position information and / or speed information) from the acquisition unit 113c. It is supposed to be configured.

  Specifically, the acquisition unit 113c is connected to the battery BT via the control unit 113b regardless of the power-off state and the power-on state of the power switch SW. Setting position information is stored (set) in advance in the storage unit 113m. Here, the set position information is a set area where the refrigerated container 110 should be located, and is latitude and longitude information indicating a range where the refrigerated container 110 should be located. Further, the upper limit value and / or the lower limit value (here, the set speed range) of the set speed is stored (set) in advance in the storage unit 113m. Here, the set speed range is a speed range of a freight train in which the refrigerated container 110 is transported.

  Then, the control unit 113b supplies power to the communication unit 113a by assuming that the position information from the acquisition unit 113c is outside the setting area stored in the storage unit 113m as abnormal when the power is off. The control unit 113b supplies power to the communication unit 113a by assuming that the speed information from the acquisition unit 113c is outside the set speed range stored in the storage unit 113m as an abnormality when the power is off. .

(Operation Example of Modification 4 of Third Embodiment)
Next, an operation example of Modification 4 of the third embodiment will be described. FIG. 6F is a flowchart illustrating an operation example of Modification 4 of the third embodiment.

  The flowchart shown in FIG. 6F deletes Steps S103 to S105 and Step S4 in the flowchart shown in FIG. 6E, and provides Step S106 after the condition determination in Step S2b (when the current time is not the alarm time: No), in Step S5. Instead, step S5a is provided.

  That is, in step S106, it is determined whether at least one of the position information and the speed information from the acquisition unit 113c is abnormal. If at least one of the position information and the speed information is abnormal (step S106: Yes), The process proceeds to step S3b. On the other hand, when both the position information and the speed information are normal (within the range) (step S106: No), the process proceeds to step S2b.

  In step S5a, the control unit 113b controls the switching unit 113d to supply power to the communication unit 113a.

  Note that at least two of the third embodiment and its first to fourth modifications may be combined.

[Fourth Embodiment]
FIG. 7A is a detailed block diagram illustrating a detailed configuration of the remote monitoring terminal device 113 according to the fourth embodiment.

  In the third embodiment shown in FIG. 6A, the remote monitoring terminal device 113 of the fourth embodiment shown in FIG. 7A is provided with a real-time clock 113r, a control unit 113b, and an acquisition unit 113c on the control board 114, and controls the communication unit 113a. It is independent from the substrate 114. Accordingly, the signal connection line SN1 is removed, and the signal output line of the real-time clock 113r and the signal input line of the control unit 113b are connected on the control board 114. Further, the “ON” terminal of the power switch SW and the power line of the communication unit 113a are connected by a power connection line L10.

  The power supply time to the communication module is preset in the real time clock 113r. When the current time is the power supply time, the control unit 113b receives an alarm signal from the real-time clock 113r and switches the switching unit 113d to the communication unit power supply state.

(Operation example of the fourth embodiment)
Next, an operation example of the fourth embodiment will be described. FIG. 7B is a flowchart illustrating an operation example of the fourth embodiment.

  In the flowchart shown in FIG. 7B, first, based on the voltage state of the power connection line L1 detected by the detection unit (measurement unit) 113e, the control unit 113b determines whether or not the power switch SW is in an OFF state (step S1). S201) When the power switch SW is in the power-on state (step S201: No), the process proceeds to step S202. On the other hand, when the power switch SW is in the power-off state (step S201: Yes), the process proceeds to step S203.

  When the power switch SW is in the power-on state in step S201 (step S201: No), the control unit 113b supplies power to the communication unit 113a and the acquisition unit 113c (step S202), and the process proceeds to step S201.

  If the power switch SW is in the power-off state in step S201 (step S201: Yes), it is determined whether power is supplied to the communication unit 113a or the acquisition unit 113c (step S203), and the communication unit 113a or the acquisition unit. When power is supplied to 113c (step S203: Yes), the control unit 113b cuts off power supply to the communication unit 113a and the acquisition unit 113c (step S204), and the process proceeds to step S201.

  When it is determined in step S203 that power is not supplied to the communication unit 113a or the acquisition unit 113c (step S203: No), it is determined whether the current time of the real-time clock 113r is the power supply time (step S203). S205) If the current time is not the power supply time (step S205: No), the process proceeds to step S201. On the other hand, when the current time becomes the power supply time (step S205: Yes), the control unit 113b supplies power to the communication unit 113a (step S206).

  Then, the mobile body information stored in the storage unit 113m is transmitted to the remote monitoring device 121 via the communication unit 113a and reported to the remote monitoring center 120 (step S207), and the process proceeds to step S204.

(Modification 1 of 4th Embodiment)
In the first modification of the fourth embodiment, the power from the battery BT is also supplied to the acquisition unit 113c by the alarm function of the real-time clock 113r.

  Specifically, when the control unit 113b determines that the power switch SW is in the power-off state based on the detection result of the detection unit (measurement unit) 113e, the control unit 113b switches to the acquisition unit power supply state by an alarm signal from the real-time clock 113r. .

(Operation Example of Modification 1 of Fourth Embodiment)
Next, an operation example of Modification 1 of the fourth embodiment will be described. FIG. 7C is a flowchart illustrating an operation example of Modification 1 of the fourth embodiment.

  The flowchart shown in FIG. 7C is different from the flowchart shown in FIG. 7B in that steps S206a and S207a are provided instead of steps S206 and S207, respectively.

  That is, in step S206a, the control unit 113b controls the switching unit 113d to supply power to the communication unit 113a, and the control unit 113b supplies power to the acquisition unit 113c.

  In step S207a, the latest moving body information acquired by the acquisition unit 113c is transmitted to the remote monitoring device 121 via the communication unit 113a and reported to the remote monitoring center 120. Note that the latest mobile information acquired by the acquisition unit 113c is stored in the storage unit 113m.

(Modification 2 of 4th Embodiment)
In the second modification of the fourth embodiment, the control unit 113b is configured to monitor the voltage level (voltage value) of the battery BT and determine whether to supply power to the communication unit 113a.

  Specifically, the control unit 113b includes a measurement unit (measurement unit) 113e. Further, the first voltage level (voltage value) is stored (set) in advance in the storage unit 113m.

  Then, when the voltage level of the battery BT detected by the detection unit (measurement unit) 113e is equal to or lower than the first voltage level stored in the storage unit 113m in the power-off state, the control unit 113b Even if is the alarm time, power is not supplied to the communication unit 113a.

(Operation Example of Modification 2 of Fourth Embodiment)
Next, an operation example of Modification 2 of the fourth embodiment will be described. FIG. 7D is a flowchart illustrating an operation example of Modification 2 of the fourth embodiment.

  The flowchart shown in FIG. 7D is obtained by providing step S208 between step S205 and step S206 in the flowchart shown in FIG. 7B.

  That is, in step S208, it is determined whether or not the voltage level of the battery BT detected by the detection unit (measurement unit) 113e is equal to or lower than the first voltage level stored in the storage unit 113m, and the detected voltage level of the battery BT. Is equal to or lower than the first voltage level (step S208: Yes), the process proceeds to step S204. On the other hand, when the detected voltage level of the battery BT exceeds the first voltage level (step S208: No), the process proceeds to step S206.

(Modification 3 of 4th Embodiment)
In the third modification of the fourth embodiment, the control unit 113b is configured to monitor the voltage level (voltage value) of the battery BT and determine whether to supply power to the acquisition unit 113c.

  Specifically, the control unit 113b includes a detection unit (measurement unit) 113e. The storage unit 113m stores (sets) a second voltage level (voltage value) in advance. Here, the second voltage level is set to a value higher than the first voltage level.

  When the voltage level of the battery BT detected by the detection unit (measurement unit) 113e is equal to or lower than the second voltage level stored in the storage unit 113m when the power is off, the control unit 113b is a communication unit. The power supply to 113a is cut off.

(Operation Example of Modification 3 of Fourth Embodiment)
Next, an operation example of Modification 3 of the fourth embodiment will be described. FIG. 7E is a flowchart illustrating an operation example of Modification 3 of the fourth embodiment.

  In the flowchart shown in FIG. 7E, step S200 is provided before the process of step S201 in the flowchart shown in FIG. 7B, and steps S203a and S204a are provided instead of steps S203 and S204, respectively. Step S209 is provided, and steps S210, S211, and S207a are provided as processing after the condition determination in step S209.

  That is, in step S200, the control unit 113b supplies power to the real-time clock 113r and the acquisition unit 113c, and the process proceeds to step S201.

  In step S203a, it is determined whether power is supplied to the communication unit 113a. If power is supplied to the communication unit 113a (step S203a: Yes), the process proceeds to step S204a. On the other hand, when it is determined that power is not supplied to the communication unit 113a (step S203a: No), the process proceeds to step S205. In step S204a, the control unit 113b cuts off the power supply to the communication unit 113a.

  In step S209, it is determined whether or not the voltage level of the battery BT detected by the detection unit (measurement unit) 113e is equal to or lower than the second voltage level stored in the storage unit 113m, and the detected voltage level of the battery BT is the first voltage level. When the voltage level is 2 or less (step S209: Yes), the process proceeds to step S211. On the other hand, when the detected voltage level of the battery BT exceeds the second voltage level (step S209: No), the process proceeds to step S210.

  In step S210, the control unit 113b supplies power to the acquisition unit 113c, and the process proceeds to step S207a. Note that step S207a is the same as the process of step S207a shown in FIG. 7C, and a description thereof will be omitted here. In step S211, the control unit 113b cuts off the power supply to the acquisition unit 113c, and the process proceeds to step S207. Then, after the processing in steps S207 and 207a, the process proceeds to step S204a.

  In step S204a, the control unit 113b cuts off the power supply to the communication unit 113a.

(Modification 4 of 4th Embodiment)
In the fourth modification of the fourth embodiment, the control unit 113b determines whether to supply power to the communication unit 113a based on moving body information (here, position information and / or speed information) from the acquisition unit 113c. It is supposed to be configured.

  Specifically, the acquisition unit 113c is connected to the battery BT regardless of the power-off state and the power-on state of the power switch SW. Setting position information is stored (set) in advance in the storage unit 113m. Here, the set position information is a set area where the refrigerated container 110 should be located, and is latitude and longitude information indicating a range where the refrigerated container 110 should be located. Further, the upper limit value and / or the lower limit value (here, the set speed range) of the set speed is stored (set) in advance in the storage unit 113m. Here, the set speed range is a speed range of a freight train in which the refrigerated container 110 is transported.

  Then, the control unit 113b supplies power to the communication unit 113a by assuming that the position information from the acquisition unit 113c is outside the setting area stored in the storage unit 113m as abnormal when the power is off. The control unit 113b supplies power to the communication unit 113a by assuming that the speed information from the acquisition unit 113c is outside the set speed range stored in the storage unit 113m as an abnormality when the power is off. .

(Operation Example of Modification 4 of Fourth Embodiment)
Next, an operation example of Modification 4 of the fourth embodiment will be described. FIG. 7F is a flowchart illustrating an operation example of Modification 4 of the fourth embodiment.

  The flowchart shown in FIG. 7F is obtained by deleting steps S209 to S211 and S207 in the flowchart shown in FIG. 7E, and providing step S212 after the condition determination in step S205 (when the current time is not the power supply time: No). is there.

  That is, in step S212, it is determined whether at least one of position information and speed information from the acquisition unit 113c is abnormal. If at least one of position information and speed information is abnormal (step S212: Yes), The process proceeds to step S206. On the other hand, when both the position information and the speed information are normal (within the range) (step S212: No), the process proceeds to step S201.

   Note that at least two of the fourth embodiment and its first to fourth modifications may be combined.

  In addition, at least two of the first and second embodiments described above, the third embodiment and modifications 1 to 4 thereof, and the fourth embodiment and modifications 1 to 4 thereof are combined. May be.

[Fifth and sixth embodiments]
In the fifth and sixth embodiments, regardless of the alarm function of the real-time clock 113r, the control unit 113b sends the communication unit 113a to the communication unit 113a based on the moving body information (here, position information and / or speed information) from the acquisition unit 113c. It is configured to determine whether to supply power. The fifth and sixth embodiments can be applied to the configurations of FIGS. 6A and 7A, respectively. The real time clock 113r may be removed in the configuration of FIGS. 6A and 7A.

(Operation Example of Fifth Embodiment)
FIG. 8A is a flowchart illustrating an operation example of the fifth embodiment.

  The flowchart shown in FIG. 8A is obtained by deleting step S2b from the flowchart shown in FIG. 6F.

  That is, in step S106, it is determined whether or not at least one of position information and speed information from the acquisition unit 113c is abnormal, and waits until at least one of position information and speed information becomes abnormal (step S106: No). When at least one of position information and speed information is abnormal (Step S106: Yes), it shifts to Step S3b.

(Operation Example of Sixth Embodiment)
FIG. 8B is a flowchart illustrating an operation example of the sixth embodiment.

  The flowchart shown in FIG. 8B is obtained by deleting step S205 from the flowchart shown in FIG. 7F.

  That is, in step S212, it is determined whether or not at least one of position information and speed information from the acquisition unit 113c is abnormal. If both position information and speed information are normal (step S212: No), step S212 is performed. The process proceeds to S201, and when at least one of the position information and the speed information is abnormal (step S212: Yes), the process proceeds to step S206.

(From the first embodiment to the sixth embodiment)
According to the refrigerated container 110 and the remote monitoring terminal device 113 described above, the real-time clock 113r is connected to the battery regardless of the power-off state and the power-on state of the power switch SW. The power from the battery BT can be supplied to at least the real-time clock 113r among the constituent elements of the terminal device 113. Therefore, it is necessary to supply power to the communication unit 113a, which consumes a relatively large amount of power compared to other constituent members. As a result, the power consumption of the battery BT can be suppressed as much as possible. In addition, since the power from the battery BT is supplied to the communication unit 113a by the alarm function of the real-time clock 113r, the mobile body information can be spontaneously transmitted from the communication unit 113a to the remote monitoring device 121.

  Further, by periodically supplying power from the battery BT to the communication unit 113a at an alarm time set in advance by an alarm function of the real-time clock 113r, when the alarm time comes, the mobile unit moves from the communication unit 113 to the remote monitoring device 121. Information can be transmitted periodically, whereby the remote monitoring device 121 can periodically collect data.

  5A and 5B, the power from the battery BT is also supplied to the acquisition unit 113c by the alarm function of the real-time clock 113r, so that when the power is supplied to the acquisition unit 113c, the acquisition unit 113c The latest mobile body information can be acquired and the acquired latest mobile body information can be transmitted from the communication unit 113a to the remote monitoring device 121.

  Further, as shown in FIGS. 6A and 7A, since the control unit 113b is connected to the battery BT regardless of the power-off state and the power-on state of the power switch SW, the remote monitoring terminal can be used in the power-off state. The power from the battery BT can be supplied to at least the real-time clock 113r and the control unit 113b among the components of the device 113.

  In addition, as shown in FIGS. 6A and 6B and FIGS. 7A and 7B, the control unit 113b is configured to selectively switch between the communication unit power supply state and the communication unit cutoff state, so that an instruction from the control unit 113b can be obtained. Thus, power supply from the battery BT to the communication unit 113a can be controlled.

  Further, as in the third to sixth embodiments, the control unit 113b is configured to monitor whether the power switch SW is in the power-off state or the power-on state, so that the control unit 113b In the off state, the power from the battery BT can be reliably supplied to the communication unit 113a.

  Further, when the control unit 113b is in the power-off state, the power from the battery BT can be supplied to the communication unit 113a by switching to the communication unit power supply state by the alarm function of the real-time clock 113r. Sometimes, the mobile unit information can be spontaneously transmitted from the communication unit 113a to the remote monitoring device 121 according to the instruction of the control unit 113b based on the alarm function of the real time clock 113r.

  Also, as shown in FIGS. 6A and 6C and FIGS. 7A and 7C, the control unit 113b is configured to selectively switch between the acquisition unit power supply state and the acquisition unit cutoff state. Thus, power supply from the battery BT to the acquisition unit 113c can be controlled.

  Further, when the control unit 113b is in the power-off state, the power from the battery BT can be supplied to the acquisition unit 113c by switching to the acquisition unit power supply state by the alarm function of the real-time clock 113r. Sometimes when the power from the battery BT is supplied to the acquisition unit 113c according to the instruction of the control unit 113b based on the alarm function of the real-time clock 113r, the acquisition unit 113c acquires the latest moving body information and acquires the latest movement acquired. The body information can be transmitted from the communication unit 113a to the remote monitoring device 121.

  Further, as shown in FIGS. 6A and 6D and FIGS. 7A and 7D, the control unit 113b is configured to monitor the voltage level of the battery BT, so that the communication unit 113a corresponding to the voltage level of the battery BT is transferred. The power supply can be controlled.

  Further, by controlling the power supply to the communication unit 113a based on the voltage level of the battery BT and the first voltage level when the control unit 113b is in the power-off state, specifically, the voltage level of the battery BT is the first level. By stopping the power supply to the communication unit 113a when the voltage level is 1 voltage level or less, it is possible to extend the time required for the battery BT to run out of battery as much as possible.

  6A and 6E and FIGS. 7A and 7E, when the control unit 113b is in a power-off state, the acquisition unit is cut off when the voltage level of the battery BT is equal to or lower than a preset second voltage level. For example, when the voltage level of the battery BT is equal to or lower than the second voltage level, the acquisition unit except when the mobile unit information is transmitted from the communication unit 113a to the remote monitoring device 121 by the alarm function of the real-time clock 113r. By stopping the power supply to 113c, the power consumption of the battery BT can be suppressed.

  Further, as shown in FIGS. 6A, 6F and 8A and FIGS. 7A, 7F and 8B, the communication unit based on the position information and the set position information from the acquisition unit 113c when the control unit 113b is in the power-off state. By switching to the power supply state, the electric power from the battery BT can be supplied to the communication unit 113a, and thereby the abnormal position information of the refrigerated container 110 can be notified to the remote monitoring device 121. As a result, the remote monitoring device 121 side regards that the refrigerated container 110 is not in the area where it should originally be located, and can be used for detecting theft of the refrigerated container 110, for example.

  Further, as shown in FIGS. 6A, 6F and 8A, and FIGS. 7A, 7F and 8B, when the control unit 113b is in a power-off state, the communication unit is based on the speed information and the set speed information from the acquisition unit 113c. By switching to the power supply state, the power from the battery BT can be supplied to the communication unit 113a, and thus the abnormal speed information of the refrigerated container 110 can be notified to the remote monitoring device 121. As a result, the remote monitoring device 121 side regards that the transport state of the refrigerated container 110 is not the original transport state, and can be used for, for example, theft detection of the refrigerated container 110.

DESCRIPTION OF SYMBOLS 100 Mobile body remote monitoring system 110 Mobile body 113 Remote monitoring terminal device 113a Communication part 113a
113b Control unit 113c Acquisition unit 113d Switching unit 113e Detection unit (measurement unit)
113f Position information detection unit 113g Speed information detection unit 113m Storage unit 113r Real time clock 120 Remote monitoring center 121 Remote monitoring device 130 Communication network BT Battery SW Power switch

Claims (10)

A remote monitoring terminal device that is provided in a mobile body that is remotely monitored by communicating with a remote monitoring device and that is selectively switched between a power-off state and a power-on state by a power switch connected to the battery Because
An acquisition unit for acquiring moving body information about the moving body;
A communication unit that transmits the mobile object information acquired by the acquisition unit to the remote monitoring device;
A real-time clock connected to the battery regardless of whether the power switch is in a power-off state or a power-on state,
A remote monitoring terminal device, wherein power from the battery is supplied to the communication unit by an alarm function of the real-time clock. The remote monitoring terminal device according to claim 1,
A remote monitoring terminal device, wherein power from the battery is periodically supplied to the communication unit at an alarm time set in advance by an alarm function of the real-time clock. The remote monitoring terminal device according to claim 1 or 2,
The remote monitoring terminal device, wherein power from the battery is also supplied to the acquisition unit by an alarm function of the real-time clock. The remote monitoring terminal device according to claim 1 or 2,
Regardless of the power-off state and the power-on state of the power switch, a control unit connected to the battery,
The control unit is configured to selectively switch between a communication unit power supply state that supplies power from the battery to the communication unit and a communication unit cutoff state that blocks power supply from the battery to the communication unit; and The power switch is configured to monitor whether the power switch is in a power-off state or a power-on state. When the power switch is in the power-off state, the real-time clock alarm function is used to switch to the communication unit power-supply state. A remote monitoring terminal device. The remote monitoring terminal device according to claim 4,
The control unit is configured to selectively switch between an acquisition unit power supply state that supplies power from the battery to the acquisition unit and an acquisition unit cutoff state that blocks power supply from the battery to the acquisition unit. The remote monitoring terminal device is switched to the acquisition unit power supply state by an alarm function of the real-time clock when the power is off. The remote monitoring terminal device according to claim 4 or 5,
The control unit is configured to monitor the voltage level of the battery, and when the power is off, power to the communication unit is based on the voltage level of the battery and a preset first voltage level. A remote monitoring terminal device characterized by controlling supply. The remote monitoring terminal device according to any one of claims 4 to 6,
The control unit is configured to monitor the voltage level of the battery, and an acquisition unit power supply state that supplies power from the battery to the acquisition unit, and acquisition that blocks power supply from the battery to the acquisition unit When the battery voltage level is lower than or equal to a preset second voltage level or lower than the second voltage level in the power-off state. The remote monitoring terminal device is switched to the acquisition unit blocking state. The remote monitoring terminal device according to any one of claims 4 to 7,
The acquisition unit includes a position information detection unit that detects position information of the moving body,
The position information detection unit is connected to the battery regardless of the power-off state and the power-on state of the power switch,
The control unit switches to the communication unit power supply state based on the position information from the position information detection unit and preset position information when the power is off. . The remote monitoring terminal device according to any one of claims 4 to 8,
The acquisition unit includes a speed information detection unit that detects speed information of the moving body,
The speed information detection unit is connected to the battery regardless of a power-off state and a power-on state of the power switch,
The control unit switches to the communication unit power supply state based on the speed information from the speed information detection unit and preset speed information when the power is off. . A mobile that is remotely monitored by communicating with a remote monitoring device,
The remote monitoring terminal device according to any one of claims 1 to 9,
And a power switch connected between the battery and the remote monitoring terminal device.

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