Communication equipment, business systems, communication methods and programs
By employing strategically positioned antennas and relay units for short-range wireless communication, the challenges of secure and efficient data exchange between vehicles and headquarters are addressed, ensuring safety and reducing network load.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- NEC PLATFROMS LTD
- Filing Date
- 2026-04-23
- Publication Date
- 2026-07-09
AI Technical Summary
Existing data exchange methods between devices on vehicles and computers at headquarters or bases face risks of eavesdropping and impose a load on wide-area communication networks, particularly due to the size of data and regulatory constraints on wireless LANs.
A communication device and system with strategically positioned antennas and relay units enable secure, short-range wireless communication by ensuring antennas on vehicles and stationary systems are within a predetermined distance, using a VPN for enhanced security.
This approach allows for safe and efficient data exchange between mobile devices and business systems, reducing the risk of eavesdropping and network load while maintaining operational convenience.
Smart Images

Figure 2026116350000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a communication device, a service system, a communication method, and a program.
Background Art
[0002] Patent Document 1 discloses a wearable camera that can suppress an increase in power consumption of a built-in battery and stably distribute imaging video data of the wearable camera to a police station in response to the occurrence of an event related to a police officer's work.
Prior Art Document
Patent Document
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] In police work or the like, there is a need to safely exchange data between devices mounted on a vehicle and a computer of a service system at a headquarters or a base, as in Patent Document 1. As a method of exchanging these data, it is conceivable to transmit them via a wireless LAN (Local Area Network) or the like. However, since the radio waves of a normal wireless LAN are adjusted to pick up more radio waves within the scope of regulations such as the Radio Law, there is a risk of eavesdropping or the like. In addition, since data such as images and videos are large in size, when using a wide-area communication network such as an LTE (Long Term Evolution) line as in Patent Document 1, there are problems such as taking a long time and imposing a load on the wide-area communication network.
[0005] An object of the present disclosure is to provide a communication device, a service system, a communication method, and a program capable of safely and efficiently exchanging data between a device mounted on a vehicle and a computer of a service system at a headquarters or a base. [Means for solving the problem]
[0006] From a first perspective, a communication device is provided that includes, with the mobile body positioned in the normal position within the space for positioning the mobile body, a second antenna installed on the mobile body such that the distance between the antennas is less than or equal to a predetermined value relative to a first antenna installed in the space, a terminal of a business system connected to the first antenna with the mobile body positioned in the normal position within the space, a communication unit capable of wireless communication using the second antenna, and a relay unit that relays communication between the terminal of the business system and equipment mounted on the mobile body.
[0007] From a second perspective, a business system is provided that includes a first antenna installed in a space for positioning a mobile body, and which is installed such that, when the mobile body is positioned in its normal location within the space, the distance from the first antenna to the second antenna on the mobile body side is less than or equal to a predetermined value, and a wireless communication unit that can communicate with a communication device mounted on the mobile body, which is equipped with a second antenna installed opposite the first antenna.
[0008] From a third perspective, a communication method is provided which includes the steps of: detecting that the mobile body is located in a designated position in a space for positioning the mobile body; and, at the designated position, when the distance between a first antenna installed in the space and a second antenna installed on the mobile body is less than or equal to a predetermined value, initiating communication between equipment mounted on the mobile body and a terminal of a business system connected to the first antenna via the first and second antennas.
[0009] From a fourth perspective, a program is provided that causes a computer to execute the following processes: detecting that the mobile body is positioned in a designated location within a space for positioning the mobile body; and, at the designated location, when the distance between a first antenna installed in the space and a second antenna installed on the mobile body is less than or equal to a predetermined value, initiating communication between equipment mounted on the mobile body and a terminal of a business system connected to the first antenna via the first and second antennas. [Effects of the Invention]
[0010] According to this disclosure, it will be possible to safely and efficiently exchange data between devices mounted on mobile devices such as vehicles and computers in business systems at headquarters or branch offices. [Brief explanation of the drawing]
[0011] [Figure 1] This figure shows the configuration of one embodiment of the present disclosure. [Figure 2] This is a flowchart illustrating the operation of one embodiment of the present disclosure. [Figure 3] This is a diagram illustrating the operation of one embodiment of the present disclosure. [Figure 4] This is a diagram illustrating the operation of one embodiment of the present disclosure. [Figure 5] This figure shows the configuration of another embodiment of the present disclosure. [Figure 6] This is a diagram showing the first configuration of this disclosure. [Figure 7] This is a sequence diagram illustrating the operation of the first configuration of this disclosure. [Figure 8] This is a sequence diagram illustrating the operation of another configuration of this disclosure. [Figure 9] This figure shows the configuration of a computer installed in a terminal of a communication device or business system of this disclosure. [Modes for carrying out the invention]
[0012] First, an overview of one embodiment of this disclosure will be described with reference to the drawings. The reference numerals in the drawings provided in this overview are for convenience and serve as examples to aid understanding; they are not intended to limit this disclosure to the illustrated embodiments. Furthermore, the connecting lines between blocks in the drawings and other references in the following description include both bidirectional and unidirectional lines. Unidirectional arrows schematically represent the flow of the main signal (data) and do not exclude bidirectional communication. The program is executed via a computer device, which includes, for example, a processor, storage device, input device, communication interface, and, if necessary, a display device. This computer device is also configured to communicate with internal or external devices (including computers) via the communication interface, whether wired or wireless. While there are ports or interfaces at the input / output connection points of each block in the diagram, they are not shown in the illustration.
[0013] In one embodiment, this disclosure can be implemented with a configuration including a terminal 10 of a business system and a communication device 20, as shown in Figure 1. More specifically, the terminal 10 of the business system includes a first antenna 11 and a wireless communication unit 12. The first antenna 11 is installed in a space where a mobile body V is positioned, and is installed such that, when the mobile body V is in its normal position in the space, the distance to the second antenna 21 on the mobile body V side is less than or equal to a predetermined value. The wireless communication unit 12 is responsible for communication with the communication device 20 mounted on the mobile body V, which is equipped with a second antenna 21 installed opposite the first antenna 11.
[0014] The communication device 20 includes a second antenna 21, a communication unit 22, and a relay unit 23. The second antenna 21 is installed on the mobile body V in such a manner that the distance between the antennas becomes not more than a predetermined value with respect to the first antenna 11 installed in the space where the mobile body V is located, in a state where the mobile body V is positioned at the normal position in the space for positioning the mobile body V. The communication unit 22 performs wireless communication with the terminal 10 of the business system connected to the first antenna 11 by using the second antenna 21, in a state where the mobile body V is positioned at the normal position in the space. The relay unit 23 relays communication between the terminal 10 of the business system and the device 24 mounted on the mobile body V. Examples of this device 24 include an in-vehicle camera, a tablet terminal, a passenger's smartphone, a digital camera, a sound collection microphone, and the like. Further, the in-vehicle camera may be a 360-degree camera capable of photographing the surroundings of the mobile body.
[0015] The terminal 10 and the communication device 20 of the business system configured as described above operate as shown in FIG. 2. First, at least one of the terminal 10 of the business system and the communication device 20 detects that the mobile body V is located at the normal position in the space where the first antenna 11 is installed (step S11).
[0016] Next, the terminal 10 and the communication device 20 of the business system start communication (step S12). Specifically, when the mobile body is located at the normal position, the distance between the first antenna 11 installed in the space and the second antenna 21 installed on the mobile body V becomes not more than a predetermined value. In this state, communication between the device 24 mounted on the mobile body and the terminal 10 of the business system connected to the first antenna 11 is started via the first and second antennas.
[0017] The operations of the terminal 10 and the communication device 20 of the business system will be described in detail with reference to FIGS. 3 and 4. FIG. 3 shows a process in which the mobile body V is moving backward toward the normal position in the space for positioning the mobile body V. In the state of FIG. 3, the distance L between the first antenna 11 and the second antenna 21 exceeds the threshold value at which both can communicate, so communication is not possible.
[0018] Figure 4 shows the state where the mobile body V is located at the normal position in the space. In the state of Figure 4, the distance L between the first antenna 11 and the second antenna 21 is below the threshold at which both can communicate, so communication between the wireless communication unit 12 and the communication unit 22 becomes possible. In this state, the relay unit 23 relays communication between the terminal 10 of the business system and the device 24 mounted on the mobile body V.
[0019] Note that the communicable distance between the terminal 10 of the business system and the communication device 20 can be adjusted by the transmission power of the radio waves transmitted by the first antenna 11 and the second antenna 21. When high security is required for the data exchanged between the terminal 10 of the business system and the communication device 20, the transmission power is reduced. Thereby, the range defined as the aforementioned normal position becomes narrower, and the risk of data leakage can be reduced. Conversely, when high security is not required for the data exchanged between the terminal 10 of the business system and the communication device 20, the transmission power can also be set to a larger value. Thereby, the range defined as the aforementioned normal position becomes wider, and the convenience of the user can be enhanced.
[0020] Note that in the examples of Figures 1 to 4, an example where the mobile body V is a vehicle has been described, but as shown in Figure 5, the mobile body V may be a drone. Similarly, in the configuration of Figure 5, when the distance L between the first antenna 11 and the second antenna 21a is below the communication threshold, communication between the wireless communication unit 12 and the communication unit 22a becomes possible. In this state, the relay unit 23a relays communication between the terminal 10 of the business system and a device 24a such as a camera mounted on the mobile body V. Note that as shown in Figures 3 and 4, in either the case of a vehicle or a drone, the second antennas 21, 21a can be installed on the bottom surface or side surface of the vehicle body or aircraft body.
[0021] [First Embodiment] Next, a first embodiment in which this disclosure is applied to the exchange of data between the police station's operational system and a camera-equipped terminal mounted on a patrol car will be described in detail with reference to the drawings.
[0022] Figure 6 is a diagram showing the first configuration of this disclosure. Referring to Figure 6, the police station site is shown, which includes a building (office building) 300 and a parking lot 400.
[0023] Parking lot 400 is equipped with parking spaces PS. In the parking spaces PS, an antenna unit 101 is installed in a position opposite to the antenna unit 201 on the patrol car PC when the patrol car PC is parked in the designated position. This antenna unit 101 is connected to PC 102 via network equipment 103. The antenna unit 201 may be installed on the paved surface of the parking space PS, or it may be embedded in the paved surface of the parking space PS. This antenna unit 101 corresponds to the first antenna 11 described above.
[0024] Furthermore, a sensor 104 is installed near the parking space PS to detect the entry of a patrol car PC into the parking space PS. When the sensor 104 detects that a patrol car PC has entered, it sends an entry signal to the PC 102. This sensor 104 could also be an infrared sensor or a footplate sensor, for example. Alternatively, a license plate reader or the like could be used as the sensor 104.
[0025] Building 300 houses the police station's business system personal computer 102 and network equipment 103 such as hubs and switches. This personal computer 102 (hereinafter referred to as "PC102") corresponds to the "business system terminal" mentioned above.
[0026] When PC102 receives an entry signal from sensor 104, it commands antenna unit 101 to transmit radio waves.
[0027] A wired LAN (Local Area Network) shall be used for the connection between the PC 102, network device 103, sensor 104, and antenna unit 101.
[0028] An antenna unit 201 is installed on the underside of the patrol car (PC). This antenna unit 201 is positioned so that when the patrol car (PC) is parked in the designated parking space (PS), the antennas of the parking space (PS) antenna unit 101 and antenna unit 201 face each other and are in the closest possible proximity. At this point, the distance between the two antennas is approximately several tens of centimeters. This enables communication between antenna unit 101 and antenna unit 201. For security purposes, a VPN (Virtual Private Network) connection is used between antenna unit 101 and antenna unit 201. The installation location of antenna unit 201 is not limited to the underside of the vehicle. For example, it can also be installed under the seat.
[0029] Furthermore, the patrol car PC is equipped with a tablet terminal 203 with a camera for taking photos and videos of the scene. This tablet terminal corresponds to the equipment described above. This tablet terminal 203 can also be connected to the vehicle's antenna unit 101 via a LAN cable or the like. Note that the connection between the tablet terminal 203 and the antenna unit 201 does not have to be via a LAN cable. For example, if the antenna unit 201 has a USB port, the tablet terminal 203 and the antenna unit 201 may be connected using a USB cable.
[0030] The antenna unit 201 is equipped with functions corresponding to the second antenna 21, communication unit 22, and relay unit 23 in Figure 1. Therefore, the antenna unit 201 corresponds to the second antenna 21, communication unit 22, and relay unit 23 described above. The antenna unit 201 cannot communicate when there is no device to which it can perform a handshake. Therefore, when there is no device to which it can perform a handshake, the antenna unit 201 cannot transmit business data, including video data and audio data stored in the tablet terminal 203.
[0031] The transmission power of the radio waves from antenna unit 201 and antenna unit 101 is set to a level that allows for short-range wireless communication when the distance between the two antennas is within a predetermined value (for example, within a distance of several tens of centimeters). In other words, the output of antenna unit 201 and antenna unit 101 is adjusted so that data cannot be transmitted when the distance between the antennas exceeds a predetermined value.
[0032] Next, the operation of this embodiment will be described in detail with reference to the drawings. Figure 7 is a sequence diagram showing the operation of the first configuration of this disclosure. Referring to Figure 7, first, when the patrol car PC enters the parking space PS, the PC 102 receives an entry signal from the sensor 104 (step S001).
[0033] Next, PC102 issues a start command to the antenna unit 101 to transmit radio waves (step S002). As a result, radio waves are emitted from the antenna unit 101.
[0034] Meanwhile, the vehicle's antenna unit 201 is activated and emits radio waves at predetermined timings, such as when the shift lever is moved to the parking position (step S003). Note that the activation timing of this antenna unit 201 is not limited to when the shift lever is moved to the parking position. For example, a switch for activating the antenna unit 201 may be provided, and the antenna unit 201 may be activated when the switch is turned ON.
[0035] Once the antenna units 101 and 201 are activated and communication between them is established (step S004), data is transmitted from the vehicle-side tablet terminal 203 to the PC 102 (step S005).
[0036] PC102 saves the data received from tablet terminal 203 (step S005). Once the data saving is complete, PC102 instructs both antennas to stop transmitting radio waves. This terminates communication between the two.
[0037] As explained above, according to this disclosure, the secure transfer of various data recorded on the tablet terminal 203 is completed simply by parking the patrol car PC in a designated parking space PS and moving the shift lever to the parking position. Furthermore, since it is not necessary to remove the tablet terminal 203 from the patrol car PC, it is possible to prevent the loss or forgetting of the tablet terminal 203.
[0038] In the embodiment described above, the trigger for initiating data transmission from the tablet terminal 203 to the PC 102 was assumed to be automatic. However, from the perspective of further enhancing security, some form of ID / password authentication or two-factor authentication may be introduced.
[0039] Furthermore, according to this disclosure, in the wireless section where security concerns exist, short-range wireless communication of about several tens of centimeters is used, so radio waves do not travel from the antenna unit 101 to the vicinity of the patrol car PC or to the building. Also, since the parking lot itself is on the police station grounds, it is difficult for suspicious persons to peer around the patrol car PC. By adopting this configuration, physical security is ensured even in the wireless section according to this disclosure.
[0040] [Second Embodiment] Furthermore, although the above-described embodiment explained an example of data transmission from the tablet terminal 203 to the PC 102, this disclosure can also be applied to data transmission from the PC 102 to the tablet terminal 203.
[0041] Figure 8 is a sequence diagram illustrating the operation of another configuration of this disclosure. The first difference from the operation shown in Figure 7 is that after communication between antenna unit 101 and antenna unit 201 is established, data is transmitted from PC 102 to tablet terminal 203 (step S105). The second difference from the operation shown in Figure 7 is that the tablet terminal 203 then saves the received data (step S106). Other operations are the same as in the first embodiment and are therefore omitted from the description.
[0042] Depending on the tasks performed by the patrol car PC, there may be cases where it is necessary to receive data required for investigations and investigations from the business system and carry it with the field. According to this embodiment, data can be transmitted safely and efficiently even in such situations where the patrol car PC is deployed.
[0043] While the embodiments of this disclosure have been described above, this disclosure is not limited to the embodiments described above, and further modifications, substitutions, and adjustments can be made without departing from the basic technical concept of this disclosure. For example, the network configurations, element configurations, and data representations shown in the drawings are examples to aid in understanding this disclosure and are not limited to the configurations shown in these drawings.
[0044] For example, in each of the embodiments described above, an example of sending data from a tablet terminal 203 mounted on a patrol car PC was given, but the camera-equipped device is not limited to a tablet terminal 203. For example, this disclosure can of course also be applied to the transfer of data held in a drive recorder or in-vehicle terminal mounted on a patrol car PC.
[0045] For example, in the embodiments described above, the sensor 204 was used to detect the entry of the patrol car PC, and the PC 202 activated the antenna unit 101. However, the user of the PC 202 may manually activate the antenna unit 101. Alternatively, the antenna unit 101 may be activated from the patrol car PC side after implementing the necessary authentication procedures.
[0046] (Regarding hardware configuration) In each embodiment of this disclosure, each component of each device represents a functional unit block. Some or all of each component of each device is realized by any combination of an information processing device 900 and a program, for example, as shown in Figure 9. Figure 9 is a block diagram showing an example of the hardware configuration of the information processing device 900 that realizes each component of each device. The information processing device 900 includes, as an example, the following configuration. ·CPU(Central Processing Unit)901 • ROM (Read Only Memory) 902 ·RAM(Random Access Memory)903 • Program 904 loaded into RAM903 • Storage device 905 for storing program 904 • Drive device 907 for reading and writing recording medium 906 • Communication interface 908 connected to communication network 909 • Input / output interface 910 for data input and output. • Bus 911 connecting each component
[0047] Each component of each device in each embodiment is realized by the CPU 901 acquiring and executing a program 904 that realizes these functions. That is, the CPU 901 in Figure 9 executes the startup program for the antenna unit and the communication control program, and performs the update process for each calculation parameter held in the RAM 903, storage device 905, etc. The program 904 that realizes the functions of each component of each device is, for example, stored in advance in the storage device 905 or ROM 902, and read by the CPU 901 as needed. The program 904 may be supplied to the CPU 901 via the communication network 909, or it may be stored in advance in the recording medium 906, and the drive device 907 may read the program and supply it to the CPU 901.
[0048] There are various variations in how each device is implemented. For example, each device may be implemented by any combination of a separate information processing device 900 and a program for each component. Alternatively, multiple components of each device may be implemented by any combination of a single information processing device 900 and a program. In other words, the functions of the communication devices and terminals shown in Figure 1 and below can be implemented by a computer program that causes the processor mounted on these devices to execute the above-described processes using its hardware.
[0049] Furthermore, some or all of the components of each device are realized by other general-purpose or dedicated circuits, processors, etc., or combinations thereof. These may be made up of a single chip or multiple chips connected via a bus.
[0050] Some or all of the components of each device may be realized by a combination of the circuits and programs described above.
[0051] When some or all of the components of each device are implemented by multiple information processing devices or circuits, these multiple information processing devices or circuits may be centrally located or distributed. For example, the information processing devices or circuits may be implemented in a form in which each is connected via a communication network, such as a client-and-server system or a cloud computing system.
[0052] The embodiments described above are preferred embodiments of this disclosure and do not limit the scope of this disclosure to these embodiments alone. That is, a person skilled in the art can modify or substitute the embodiments described above to construct various modified forms without departing from the gist of this disclosure.
[0053] Some or all of the above embodiments may also be described as follows, but are not limited to these.
[0054] [Note 1] With the mobile body positioned in the designated location within the space for positioning the mobile body, a second antenna is installed on the mobile body such that the distance between the antennas is less than or equal to a predetermined value relative to a first antenna installed in the space. With the mobile body positioned in the designated location within the space, the terminal of the business system connected to the first antenna and the communication unit capable of wireless communication using the second antenna are provided. A relay unit that relays communication between the terminal of the aforementioned business system and the equipment mounted on the mobile device, A communication device equipped with the following features. [Note 2] A sensor for detecting the entry of the moving object is placed in the aforementioned space. The above-mentioned communication device is The relay unit can be configured to start transmitting or receiving data in response to a request from a terminal of the business system activated by the sensor. [Note 3] The aforementioned moving object is a vehicle or an unmanned aircraft. The second antenna of the communication device described above may be configured to be installed on the bottom or side of the vehicle or unmanned aircraft. [Note 4] The above-mentioned communication device is The system can be configured to transmit data obtained by the device during patrols by the mobile unit to the terminal of the aforementioned business system. [Note 5] The above-mentioned communication device is The system can be configured to receive data destined for the device from the terminal of the aforementioned business system. [Note 6] The communication device according to any one of claims 1 to 5, wherein the communication unit of the communication device described above has its output adjusted so that it cannot transmit data when the distance between antennas exceeds a predetermined value. [Note 7] A first antenna is installed in a space for positioning a mobile body, and is positioned such that, when the mobile body is in its normal position within the space, the distance from the second antenna on the mobile body side is less than or equal to a predetermined value. A wireless communication unit capable of communicating with a communication device mounted on a mobile body equipped with a second antenna installed opposite the first antenna, Business systems including this. [Note 8] The wireless communication unit of the business system described above may be configured such that its output is adjusted so that it cannot communicate with the communication device if the distance between the antennas exceeds a predetermined value. [Note 9] A step of detecting that the moving object has positioned itself in the correct position in the space where the moving object is to be positioned, The steps include: in the normal position, when the distance between the first antenna installed in the space and the second antenna installed on the mobile body is less than or equal to a predetermined value, communication is initiated between the equipment mounted on the mobile body and the terminal of the business system connected to the first antenna via the first and second antennas; A communication method that includes this. [Note 10] A process for detecting that the moving object has positioned itself in the designated location within the space in which the moving object is to be positioned, At the aforementioned normal position, when the distance between the first antenna installed in the space and the second antenna installed on the mobile body becomes less than or equal to a predetermined value, the process of initiating communication between the equipment mounted on the mobile body and the terminal of the business system connected to the first antenna via the first and second antennas, A program that causes a computer to execute something. Furthermore, the forms described in each of the above appendices can be combined with each other after making the necessary modifications. For example, a configuration that combines the contents described in appendice 2 and the contents described in appendice 3 is also included within the scope of disclosure of this specification. Furthermore, the forms described in Appendix 7 and Appendix 9-10 above can be expanded into the forms described in Appendix 2-6, similar to Appendix 1.
[0055] Furthermore, each disclosure in the above-mentioned patent documents is incorporated into this document by reference and may be used as the basis or part of this disclosure as necessary. Within the framework of this disclosure (including the claims), further modifications and adjustments to the embodiments or examples are possible based on their fundamental technical ideas. Also, within the framework of this disclosure, various combinations or selections (including partial deletions) of various disclosure elements (including each element of each claim, each element of each embodiment or example, each element of each drawing, etc.) are possible. In other words, this disclosure naturally includes the entire disclosure, including the claims, and various modifications and alterations that a person skilled in the art could make in accordance with the technical idea. In particular, with respect to the numerical ranges described in this document, any numerical value or sub-range included within that range should be interpreted as being specifically described, even if not otherwise stated. Furthermore, each disclosure item of the above-mentioned cited documents may, as necessary, be used in part or in whole as part of this disclosure, in accordance with the spirit of this disclosure, and this is also considered to be included in the disclosure items of this application. [Explanation of Symbols]
[0056] 10. Terminals for business systems 11 The first antenna 12 Wireless Communication Section 20 Communication equipment 21, 21a Second antenna 22, 22a Communication Department 23, 23a Relay section 24, 24a equipment 101, 201 Antenna Units 102 PC 103 Network Equipment 104 Sensors 203 Tablet devices 300 buildings (government buildings) 400 Parking 900 Information Processing Equipment 901 CPU(Central Processing Unit) 902 ROM (Read Only Memory) 903 RAM (Random Access Memory) 904 Program 905 Storage device 906 Recording media 907 Drive unit 908 Communication Interface 909 Communication Network 910 Input / Output Interface 911 Bus L is the distance between antennas. PC patrol car PS parking space V Mobile Unit
Claims
1. With the mobile body positioned in the designated location within the space for positioning the mobile body, a second antenna is installed on the mobile body such that the distance between the antennas is less than or equal to a predetermined value relative to a first antenna installed in the space. With the mobile body positioned in the designated location within the space, the second antenna is used to wirelessly communicate with the terminal of the business system connected to the first antenna, and the communication unit is capable of wireless communication with the terminal of the business system connected to the first antenna. A relay unit that relays communication between the terminal of the aforementioned business system and the equipment mounted on the mobile device, A communication device equipped with the following features.
2. A sensor for detecting the entry of the moving object is placed in the aforementioned space. The communication device according to claim 1, wherein the relay unit starts transmitting or receiving data in response to a request from a terminal of the business system activated by the sensor.
3. The aforementioned moving object is a vehicle or an unmanned aircraft. The communication device according to claim 1, wherein the second antenna is installed on the bottom or side of the vehicle or unmanned aircraft.
4. A communication device according to claim 1 that receives data destined for the device from a terminal of the aforementioned business system.
5. The communication device according to any one of claims 1 to 4, wherein the output of the communication unit is adjusted so that data cannot be transmitted when the distance between antennas exceeds a predetermined value.
6. A first antenna is installed in a space for positioning a mobile body, and is positioned such that, when the mobile body is in its normal position within the space, the distance to the second antenna on the mobile body side is less than or equal to a predetermined value. A wireless communication unit capable of communicating with a communication device mounted on a mobile body equipped with a second antenna installed opposite to the first antenna, Business systems including this.
7. The business system according to claim 6, wherein the wireless communication unit has its output adjusted so that it cannot communicate with the communication device when the distance between the antennas exceeds a predetermined value.
8. A step of detecting that the moving object has positioned itself in the correct position in the space where the moving object is to be positioned, The steps include: in the aforementioned normal position, when the distance between the first antenna installed in the space and the second antenna installed on the mobile body is less than or equal to a predetermined value, communication is initiated between the equipment mounted on the mobile body and the terminal of the business system connected to the first antenna via the first and second antennas; A communication method that includes this.
9. A process for detecting that the moving object has positioned itself in the designated location within the space in which the moving object is to be positioned, At the aforementioned normal position, when the distance between the first antenna installed in the space and the second antenna installed on the mobile body becomes less than or equal to a predetermined value, the process of initiating communication between the equipment mounted on the mobile body and the terminal of the business system connected to the first antenna via the first and second antennas, A program that causes a computer to execute something.