JP2008123014A - Contact prevention system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a contact prevention system capable of preventing a mobile body being brought into contact with a building by carelessness or the like when the driver moves the mobile body with a contact prevention device installed therein. <P>SOLUTION: In this contact prevention system, the contact prevention device 10a has: an identification information storage part 11 storing identification information for identifying each IC tag; an electric wave transmission part 12 transmitting an electric wave to the IC tag; and an identification information reception part 13 receiving the identification information transmitted from the IC tag. The contact prevention device 10a also has: an identification information decision part 14 deciding whether the identification information received by the identification information reception part 13 is stored in the identification information storage part 11 or not; and an alarm output part 15 outputting an alarm when the identification information decision part 14 decides that the identification information is stored in the identification information storage part 11. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a contact prevention system, and more particularly to a contact prevention system including a contact prevention device and at least one IC tag.

Conventionally, when moving a moving body such as a car to a building such as a garage, photographing the back of the moving body with a camera or irradiating the back of the moving body with infrared rays to detect the reflected light Thus, a technique is known in which a driver of a moving body can grasp the moving body and the building so as not to contact each other (Patent Document 1).
JP 2005-271814 A

  However, in the conventional technology, the driver visually confirms the situation behind the moving body via a display device that displays the image captured by the camera, so the driver displays it by carelessness. There is a problem that the moving body may be brought into contact with the building when the device is neglected.

  The present invention has been made in view of the above circumstances, and its purpose is to cause the moving body to come into contact with the building due to carelessness when the driver moves the moving body on which the contact prevention device is installed. It is in providing the contact prevention system which can prevent.

The present invention has been made to solve the above problems, and the invention according to claim 1 is a contact prevention system comprising a contact prevention device and at least one IC tag, wherein the contact prevention device comprises: Identification information storage means for storing identification information for identifying each IC tag; radio wave transmission means for transmitting radio waves to the IC tag; identification information receiving means for receiving identification information transmitted from the IC tag; The identification information determining means for determining whether or not the identification information received by the identification information receiving means is stored in the identification information storage means, and the identification information when the identification information is stored in the identification information storage means An alarm output unit that outputs an alarm when the determination unit determines, and each IC tag includes a self-identification information storage unit that stores identification information assigned to the self-IC tag; Radio wave receiving means for receiving radio waves transmitted by the radio wave transmitting means, power generating means for generating electric power using the radio waves received by the radio wave receiving means, and storing in the self-identification information storage means using the generated electric power Contact information reading means for reading the identification information of the self-IC tag being used, and identification information transmitting means for transmitting the identification information read by the identification information reading means to the contact prevention device Prevention system.
According to the present invention, when the contact prevention device is installed on the moving body and the IC tag is attached to the building, when the contact prevention device and the IC tag are close to a communicable distance, the alarm output means of the contact prevention device Since the warning is output, it is possible to prevent the moving body from coming into contact with the building due to carelessness when the driver moves the moving body in which the contact prevention device is installed.

The invention according to claim 2 is a contact prevention system comprising a contact prevention device and at least one IC tag, wherein the contact prevention device stores identification information for identifying each IC tag. A storage means, a contact prevention distance storage means for storing a contact prevention distance in association with identification information of each IC tag, a radio wave transmission means for transmitting a radio wave to the IC tag, and transmitted from the IC tag Identification information receiving means for receiving identification information; distance calculating means for calculating the distance from the IC tag based on the radio wave intensity of the identification information received by the identification information receiving means; and identification information received by the identification information receiving means. Identification information determining means for determining whether the identification information is stored in the identification information storage means, and the identification information determining means if the identification information is stored in the identification information storage means. A distance determination unit that determines whether the distance calculated by the distance calculation unit is smaller than a distance stored in the contact prevention distance storage unit, and the calculated distance is the contact prevention distance storage unit And a warning output means for outputting a warning when the distance determination means determines that the distance is smaller than the distance stored in each of the IC tags, wherein each IC tag stores identification information assigned to the own IC tag. An information storage means; a radio wave receiving means for receiving the radio wave transmitted by the radio wave transmitting means; a power generating means for generating power using the radio wave received by the radio wave receiving means; and the self-identification using the generated power Identification information reading means for reading the identification information of the own IC tag stored in the information storage means, and the identification information read by the identification information reading means are sent to the contact prevention device. A contact prevention system characterized by comprising an identification information transmitting means for.
According to the present invention, when a contact prevention device is installed on a moving body and an IC tag is attached to a building, an alarm is output from the alarm output means of the contact prevention device when the contact prevention device and the IC tag are within a predetermined distance. Therefore, when the driver moves the moving body on which the contact prevention device is installed, it is possible to prevent the moving body from coming into contact with the building due to carelessness.

The invention according to claim 3 is a contact prevention system comprising a contact prevention device and at least one IC tag, wherein the contact prevention device stores identification information for identifying each IC tag. Storage means; radio wave transmitting means for transmitting radio waves to the IC tag; identification information receiving means for receiving identification information transmitted from the IC tag; and identification information received by the identification information receiving means is the identification information. An identification information determination means for determining whether or not the information is stored in the information storage means, and an alarm output signal when the identification information determination means determines that the identification information is stored in the identification information storage means; Each of the IC tags includes a self-identification information storage means for storing identification information assigned to the IC tag, and the radio wave transmission Stored in the self-identification information storage means using the generated electric power, the electric power receiving means for receiving the electric wave transmitted by the means, the electric power generating means for generating electric power using the electric wave received by the electric wave receiving means, Identification information reading means for reading identification information of the own IC tag, identification information transmitting means for transmitting the identification information read by the identification information reading means to the contact prevention device, and an alarm output signal from the alarm output signal transmitting means It is a contact prevention system further provided with the alarm output means which outputs an alarm when receiving.
According to the present invention, when a contact prevention device is installed on a moving body and an IC tag is attached to a building, an alarm is output from the alarm output means of the IC tag when the contact prevention device and the IC tag are close to each other. Therefore, a worker working in the building can grasp that the moving body is approaching the building.

According to a fourth aspect of the present invention, the contact prevention device is installed in a moving body, and the contact prevention device stops the driving of the moving body when the alarm output means outputs an alarm. The contact prevention system according to any one of claims 1 to 3, further comprising a control means.
According to the present invention, when the alarm output means outputs an alarm, the first control means stops the driving of the moving body, thereby preventing the moving body from coming into contact with the building or the like to which the IC tag is attached. be able to.

According to a fifth aspect of the present invention, there is provided an instruction acquisition means for acquiring an alarm operation stop instruction for stopping the operation of the alarm output means, and the alarm output when the instruction acquisition means acquires an alarm operation stop instruction. The contact prevention system according to any one of claims 1 to 3, further comprising second control means for stopping output of an alarm by the means.
According to the present invention, when the instruction acquisition means acquires the alarm operation stop instruction, the second control means stops the output of the alarm by the alarm output means, so that it moves into the building where the IC tag is attached. Even if the body is moved, an operator who operates the moving body inputs an alarm operation stop instruction to the instruction acquisition means, and moves within the building without an alarm output from the alarm output means. You can work with your body.

According to a sixth aspect of the present invention, the contact prevention device is installed on a movable body, and the contact prevention device detects whether or not the movable body is driven, and the movement And a third control means for stopping the operation of each means of the contact prevention device when the moving body drive detecting means does not detect that the body is driving. The contact prevention system according to any one of items 1 to 3.
According to the present invention, when the moving body drive detecting means does not detect that the moving body is driving, the third control means stops the operation of each means of the contact prevention device. While the moving body is not driven, processing by the contact prevention system can be stopped, and power consumption can be reduced.

According to a seventh aspect of the invention, the contact prevention device is installed on a moving body, and the contact prevention device detects whether or not an operation instruction for driving the moving body is input. And a fourth control means for stopping the operation of each means of the contact prevention device when the operation instruction detecting means does not detect that the operation instruction is input. The contact prevention system according to any one of claims 1 to 3.
According to the present invention, the fourth control means stops the operation of each means of the contact prevention device when the operation instruction detecting means does not detect that the operation instruction is input. When a worker or the like driving the body is not operating the moving body, the processing by the contact prevention system can be stopped, and power consumption can be reduced.

  In this invention, when a driver | operator moves the mobile body which installed the contact prevention apparatus, it can prevent making a mobile body contact a building by carelessness etc.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram illustrating an application example of a contact prevention system according to first to third embodiments of the present invention. The contact prevention system includes a contact prevention device 10 (10a, 10x) and an IC tag 20 (20a, 20x). Here, the contact prevention device 10a is installed on the arm portion of the moving body 1 such as a crane truck, and the IC tag 20a is attached to a building 2 such as a building. Moreover, the contact prevention apparatus 10b is installed in the rear part of the mobile body 1, and the IC tag 20b is attached to the helmet which the person 3 wears.
The IC tag attached to the person 3 may be attached to other places such as a chest (IC tag 20y) and an arm (IC tag 20z) instead of the helmet (IC tag 20x).

FIG. 2 is a block diagram showing the configuration of the contact prevention system 30a according to the first embodiment of the present invention. The contact prevention system 30a includes a contact prevention device 10a and an IC tag 20a. The operations of the contact prevention device 10b and the IC tag 20b in FIG. 1 are the same as those of the contact prevention device 10a and the IC tag 20a, and thus description thereof is omitted.
The contact prevention device 10a includes an identification information storage unit 11 (identification information storage unit), a radio wave transmission unit 12 (radio wave transmission unit), an identification information reception unit 13 (identification information reception unit), and an identification information determination unit 14 (identification information determination unit). ), An alarm output unit 15 (alarm output means).

  The identification information storage unit 11 includes a storage device such as a memory, and stores identification information for identifying each IC tag. The identification information is a tag ID or the like. In the identification information storage unit 11, IC tag identification information that is not desired to be brought into contact with the contact prevention device 10a is recorded by an administrator of the contact prevention system 30a or the like.

  FIG. 3 is a diagram showing information stored in the identification information storage unit 11 of the contact prevention device 10a according to the first embodiment of the present invention. The identification information storage unit 11 stores three pieces of identification information 0001, 0003, and 0005.

Returning to FIG. 2, the radio wave transmission unit 12 includes a transmission antenna, and transmits radio waves to the IC tag 20a. The identification information receiving unit 13 includes a reception antenna, receives the identification information transmitted from the IC tag 20a, and outputs the received identification information to the identification information determination unit 14.
The identification information determination unit 14 includes a control device such as a CPU (Central Processing Unit), and determines whether or not the identification information received by the identification information reception unit 13 is stored in the identification information storage unit 11. The alarm output unit 15 includes an output device such as an alarm, and outputs an alarm when the identification information determination unit 14 determines that the identification information is stored in the identification information storage unit 11.

The IC tag 20a includes a self-identification information storage unit 21 (self-identification information storage unit), a radio wave reception unit 22 (radio wave reception unit), a power generation unit 23 (power generation unit), an identification information reading unit 24 (identification information reading unit), an identification An information transmission unit 25 (identification information transmission means) is provided.
The self-identification information storage unit 21 includes a storage device such as a memory, and stores identification information for identifying the self-IC tag 20a.

  FIG. 4 is a diagram showing information stored in the self-identification information storage unit 21 of the IC tag 20a according to the first embodiment of the present invention. The self identification information storage unit 21 stores 0001, which is identification information of the self IC tag 20a. Identification information is recorded in the self-identification information storage unit 21 when the IC tag 20a is manufactured.

Returning to FIG. 2, the radio wave receiving unit 22 includes a receiving antenna and receives the radio wave transmitted by the radio wave transmitting unit 12. The power generation unit 23 includes a coil and generates power by electromagnetic induction using the radio wave received by the radio wave reception unit 22.
The identification information reading unit 24 uses the power generated by the power generation unit 23 to read the identification information (here, 0001) of the own IC tag stored in the identification information storage unit 21 and identify the identification information. The data is output to the information transmission unit 25. The identification information transmission unit 25 includes a transmission antenna, and uses the power generated by the power generation unit 23 to transmit the identification information (here, 0001) read by the identification information reading unit 24 to the contact prevention device 10a. To send.

  FIG. 5 is a sequence diagram showing processing of the contact prevention system 30a according to the first embodiment of the present invention. As a premise for performing the processing of FIG. 5, the identification information of a predetermined IC tag as shown in FIG. 3 is recorded in the identification information storage unit 11 of the contact prevention device 10a (step S11). Further, identification information of the self-IC tag 20a as shown in FIG. 4 is recorded in the self-identification information storage unit 21 of the IC tag 20a (step S21).

The radio wave transmitter 12 of the contact prevention device 10a transmits radio waves to the IC tag at a predetermined time interval (for example, 5 seconds) (step S12). When the contact prevention device 10a and the IC tag 20a are within a communicable distance, the radio wave receiving unit 22 of the IC tag 20a receives a radio wave from the contact prevention device 10a (step S22).
The power generation unit 23 of the IC tag 20a generates power by electromagnetic induction using the radio wave received in step S22 (step S23). Then, the identification information reading unit 24 of the IC tag 20a reads the identification information (here, 0001) stored in the self identification information storage unit 21 (step S24).
And the identification information transmission part 25 of IC tag 20a transmits the identification information read by step S24 to the contact prevention apparatus 10a (step S25).

The identification information receiving unit 13 of the contact prevention device 10a receives the identification information from the IC tag 20a (step S13). And the identification information determination part 14 determines whether the identification information received by step S13 is memorize | stored in the identification information storage part 11 (step S14).
Here, since the identification information (0001) received in step S13 is stored in the identification information storage unit 11 (see FIG. 3), the identification information determination unit 14 determines “YES” in step S14, and then proceeds to step S15. move on. On the other hand, if the identification information received in step S13 is not stored in the identification information storage unit 11, the identification information determination unit 14 determines “NO” in step S14, and proceeds to step S12.
In step S15, the warning output unit 15 outputs a warning by sounding an alarm (step S15). After an alarm is sounded for a predetermined time (for example, 1 minute), the process proceeds to step S12.

  According to the contact prevention system 30a according to the first embodiment of the present invention, when the contact prevention device 10a is installed in the moving body 1 and the IC tag 20a is attached to the building 2, the contact prevention device 10a and the IC tag 20a When the vehicle approaches a communicable distance, an alarm is output from the alarm output unit 15 of the contact prevention device. Therefore, when the driver moves the mobile body 1 on which the contact prevention device 10a is installed, the mobile body is inadvertently moved. It is possible to prevent 1 from being brought into contact with the building 2.

Next, a contact prevention system 30b according to a second embodiment of the present invention will be described.
FIG. 6 is a block diagram showing a configuration of a contact prevention system 30b according to the second embodiment of the present invention. The contact prevention system 30b includes a contact prevention device 10b and an IC tag 20b (see FIG. 1). In addition, about the part which takes the same structure as 1st Embodiment (FIG. 2), the same code | symbol is attached | subjected and those description is abbreviate | omitted.
The contact prevention device 10b includes a contact prevention distance storage unit 31 (contact prevention distance storage unit), a distance calculation unit 32 (distance calculation unit), and a distance determination unit 33 (distance determination unit) according to the first embodiment. It differs from the contact prevention apparatus 10a (refer FIG. 2).

  The contact prevention distance storage unit 31 includes a storage device such as a memory, and stores the contact prevention distance in association with identification information of each IC tag. In the contact prevention distance storage unit 31, information on the contact prevention distance about how much the contact prevention device 10b and the IC tag approach each other and an alarm is output is recorded by an administrator of the contact prevention system 30b or the like. The

  FIG. 7 is a diagram showing information stored in the contact prevention distance storage unit 31 of the contact prevention device 10b according to the second embodiment of the present invention. The contact prevention distance storage unit 31 stores contact prevention distances 2 m, 3 m, and 4 m in association with the identification information 0001, 0003, and 0005, respectively.

Returning to FIG. 6, the distance calculation unit 32 calculates the distance between the contact prevention device 10 b and the IC tag based on the radio wave intensity of the identification information received by the identification information receiving unit 13.
The distance determination unit 33 stores the distance calculated by the distance calculation unit 32 in the contact prevention distance storage unit 31 when the identification information determination unit 14 determines that the identification information is stored in the identification information storage unit 11. It is determined whether or not the distance is smaller than a certain distance.

FIG. 8 is a sequence diagram showing processing of the contact prevention system 30b according to the second embodiment of the present invention. 8 are the same as those in the process according to the first embodiment (see FIG. 5), and the description thereof is omitted.
As a premise for performing the processing of FIG. 8, the contact prevention distance storage unit 31 of the contact prevention device 10b records the contact prevention distance corresponding to the identification information of a predetermined IC tag as shown in FIG. 7 (step S31). .

The distance calculation unit 32 calculates the distance between the contact prevention device 10b and the IC tag 20a based on the radio wave intensity of the identification information received in step S13 (step S32). Here, the case where the distance between the contact prevention device 10b and the IC tag 20a is calculated as 1 m in step S32 will be described.
Whether the distance (1 m) calculated in step S32 is smaller than the distance (here, 2 m) corresponding to the identification information received in step S13 stored in the contact prevention distance storage unit 31. It is determined whether or not (step S33).
Here, since the distance (1 m) calculated in step S32 is smaller than the distance (2 m) corresponding to the identification information (0001) received in step S13, the distance determination unit 33 determines “YES” in step S33. The process proceeds to step S15. On the other hand, if the distance calculated in step S32 is greater than or equal to the distance corresponding to the identification information received in step S13, the distance determination unit 33 determines “NO” in step S33, and proceeds to step S12.

  According to the contact prevention system 30b according to the second embodiment of the present invention, when the contact prevention device 10b is installed in the moving body 1 and the IC tag 20a is attached to the building 2, the contact prevention device 10b and the IC tag 20a When the vehicle approaches within a predetermined distance, an alarm is output from the alarm output unit 15 of the contact prevention device 10b. Therefore, when the driver moves the mobile body 1 on which the contact prevention device 10b is installed, the mobile body is inadvertently moved. It is possible to prevent 1 from being brought into contact with the building 2.

Next, a contact prevention system 30c according to a third embodiment of the present invention will be described.
FIG. 9 is a block diagram showing a configuration of a contact prevention system 30c according to the third embodiment of the present invention. The contact prevention system 30c includes a contact prevention device 10c and an IC tag 20c. In addition, about the part which takes the same structure as 1st Embodiment (FIG. 2), the same code | symbol is attached | subjected and those description is abbreviate | omitted.
The contact prevention device 10c includes the alarm output signal transmission unit 41 (alarm output signal transmission means), but does not include the alarm output unit 15, and thus the contact prevention device 10a (see FIG. 2) according to the first embodiment. Different.
The IC tag 20c is different from the IC tag 20a according to the first embodiment (see FIG. 2) in that an alarm output unit 42 is provided.

The warning output signal transmission unit 41 of the contact prevention device 10c outputs a warning output signal when the identification information determination unit 14 determines that the identification information received by the identification information reception unit 13 is stored in the identification information storage unit 11. Is transmitted to the IC tag 20c.
Further, the alarm output unit 42 of the IC tag 20c includes an output device such as an alarm, and outputs an alarm when an alarm output signal is received from the alarm output signal transmission unit 41.

FIG. 10 is a sequence diagram showing processing of the contact prevention system 30c according to the third embodiment of the present invention. The same parts as those in the process according to the first embodiment (see FIG. 5) are denoted by the same reference numerals and the description of those processes is omitted.
When it is determined that the identification information (0001) received in step S13 is stored in the identification information storage unit 11 (“YES” in step S14), the alarm output signal transmission unit 41 outputs the alarm output signal to the IC tag. 20c (step S41).
When receiving the alarm output signal transmitted from the alarm output signal transmitting unit 41, the alarm output unit 15 of the IC tag 20c outputs an alarm by sounding an alarm (step S42).

  According to the contact prevention system 30c according to the third embodiment of the present invention, when the contact prevention device 10c is installed in the moving body 1 and the IC tag 20c is attached to the building 2, the contact prevention device 10c and the IC tag 20c Since the alarm is output from the alarm output unit 15 of the IC tag 20c when the distance approaches the communicable distance, workers working in the building 2 grasp that the moving body 1 is approaching the building 2 can do.

In addition, it is made to provide the control part (1st control means) which stops the drive of the mobile body 1 when the warning output part outputs a warning in the contact prevention apparatus in the 1st-3rd embodiment mentioned above. Also good.
By providing such a configuration, when the alarm output unit outputs an alarm, the control unit can stop the driving of the moving body 1, so that the building to which the IC tag is attached and the moving body are in contact with each other. Can be prevented.

In addition, in the contact prevention devices in the first to third embodiments described above, an instruction acquisition unit (instruction acquisition unit) that acquires an alarm operation stop instruction for stopping the operation of the alarm output unit, and the instruction acquisition unit stops the alarm operation. When the instruction is acquired, a control unit (second control unit) that stops the alarm output by the alarm output unit may be provided.
By providing such a configuration, even when a moving body is moved into a building to which an IC tag is attached, an operator or the like who drives the moving body inputs an alarm operation stop instruction to the instruction acquisition unit. As a result, it is possible to perform work by the moving body in the building without an alarm being output from the alarm output unit.

Further, in the contact prevention devices in the first to third embodiments described above, a moving body drive detecting unit (moving body drive detecting means) for detecting whether or not the moving body is driven, and the moving body are driven. If the moving body drive detection means does not detect that the contact prevention device has been detected, a control part (third control means) for stopping the operation of each part of the contact prevention device may be provided.
By providing such a configuration, it is possible to stop the processing by the contact prevention system and reduce power consumption while the moving body is not driven.

In addition, an operation instruction detection unit (operation instruction detection unit) that detects whether or not an operation instruction for driving the moving body is input to the contact prevention device according to the first to third embodiments described above, and an operation instruction. A control unit (fourth control means) for stopping the operation of each unit of the contact prevention device may be provided when the operation instruction detection unit does not detect the input.
By providing such a configuration, when a worker or the like driving the moving body is not operating the moving body, the processing by the contact prevention system can be stopped, and power consumption can be reduced.

  In the contact prevention systems in the first to third embodiments described above, both the contact prevention device and the IC tag are powered if the contact prevention device is operated by generating electric power using the driving force of the moving body 1. A source is unnecessary, and the cost for constructing a contact prevention system can be reduced.

Moreover, although the case where the alarm output part 15 is provided in a contact prevention apparatus was demonstrated in 1st and 2nd embodiment mentioned above, it is not limited to this. For example, the alarm output unit 15 may be installed in the driver's seat of the moving body 1 or the like. Thereby, when the moving body 1 approaches the building 2, the driver of the moving body 1 can surely know the alarm output from the alarm output unit 15 installed near the driver's seat.
When a building 2 or the like that may be in contact with the moving body 1 is monitored with a camera or infrared rays, if there is an obstacle between the moving body 1 and the building 2, the driver of the moving body 1 grasps the existence of the building 2 However, in the first to third embodiments described above, since communication is performed by radio waves between the contact prevention device and the IC tag, no blind spot is generated.

  Moreover, although the contact prevention apparatus was installed in the crane vehicle and the IC tag was attached to the building 2 in the first to third embodiments described above, the present invention is not limited to this. For example, the contact prevention device may be installed on other moving bodies such as construction machines, trucks, and vehicles. Moreover, you may install an IC tag in other fixed objects, such as a generator and a work lamp.

  In the embodiment described above, the identification information storage unit 11, the radio wave transmission unit 12, the identification information reception unit 13, the identification information determination unit 14, the alarm output unit 15, and the self identification information storage of FIGS. Unit 21, radio wave reception unit 22, power generation unit 23, identification information reading unit 24, identification information transmission unit 25, contact prevention distance storage unit 31, distance calculation unit 32, distance determination unit 33, alarm output signal transmission unit 41, alarm output The function of the unit 42 or a program for realizing a part of these functions is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into the computer system and executed to prevent contact. The system may be controlled. Here, the “computer system” includes an OS and hardware such as peripheral devices.

  The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Further, the “computer-readable recording medium” dynamically holds a program for a short time, like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. In this case, it is also assumed that a server that holds a program for a certain time, such as a volatile memory inside a computer system that serves as a server or client. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes designs and the like that do not depart from the gist of the present invention.

It is a figure which shows the example of application of the contact prevention system by the 1st-3rd embodiment of this invention. It is a block diagram which shows the structure of the contact prevention system 30a by the 1st Embodiment of this invention. It is a figure which shows the information which the identification information storage part 11 of the contact prevention apparatus 10a by the 1st Embodiment of this invention memorize | stores. It is a figure which shows the information which the self-identification information storage part 21 of IC tag 20a by the 1st Embodiment of this invention memorize | stores. It is a sequence diagram which shows the process of the contact prevention system 30a by the 1st Embodiment of this invention. It is a block diagram which shows the structure of the contact prevention system 30b by the 2nd Embodiment of this invention. It is a figure which shows the information which the contact prevention distance memory | storage part 31 of the contact prevention apparatus 10b by the 2nd Embodiment of this invention memorize | stores. It is a sequence diagram which shows the process of the contact prevention system 30b by the 2nd Embodiment of this invention. It is a block diagram which shows the structure of the contact prevention system 30c by the 3rd Embodiment of this invention. It is a sequence diagram which shows the process of the contact prevention system 30c by the 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Mobile body, 2 ... Building, 3 ... Person, 10a, 10b, 10c ... Contact prevention apparatus, 11 ... Identification information storage part, 12 ... Radio wave transmission part, 13. ..Identification information receiving unit, 14 ... identification information determination unit, 15 ... alarm output unit, 20a, 20b, 20c ... IC tag, 21 ... self-identification information storage unit, 22 ... radio wave Receiving unit, 23 ... power generation unit, 24 ... identification information reading unit, 25 ... identification information transmission unit, 31 ... contact prevention distance storage unit, 32 ... distance calculation unit, 33 ... Distance determination unit, 41 ... alarm output signal transmission unit, 42 ... alarm output unit, 100a to 100c ... contact prevention system

Claims (7)

A contact prevention system comprising a contact prevention device and at least one IC tag,
The contact prevention device includes:
Identification information storage means for storing identification information for identifying each IC tag;
Radio wave transmitting means for transmitting radio waves to the IC tag;
Identification information receiving means for receiving identification information transmitted from the IC tag;
Identification information determining means for determining whether or not the identification information received by the identification information receiving means is stored in the identification information storage means;
An alarm output means for outputting an alarm when the identification information determination means determines that identification information is stored in the identification information storage means;
Each IC tag is
Self-identification information storage means for storing identification information assigned to the self-IC tag;
Radio wave receiving means for receiving radio waves transmitted by the radio wave transmitting means;
Power generation means for generating electric power using radio waves received by the radio wave reception means;
Identification information reading means for reading the identification information of the self-IC tag stored in the self-identification information storage means using the generated power;
The contact prevention system comprising: identification information transmitting means for transmitting the identification information read by the identification information reading means to the contact prevention device. A contact prevention system comprising a contact prevention device and at least one IC tag,
The contact prevention device is
Identification information storage means for storing identification information for identifying each IC tag;
Contact prevention distance storage means for storing the contact prevention distance in association with the identification information of each IC tag;
Radio wave transmitting means for transmitting radio waves to the IC tag;
Identification information receiving means for receiving identification information transmitted from the IC tag;
Distance calculating means for calculating the distance from the IC tag based on the radio wave intensity of the identification information received by the identification information receiving means;
Identification information determining means for determining whether or not the identification information received by the identification information receiving means is stored in the identification information storage means;
Whether or not the distance calculated by the distance calculation means is smaller than the distance stored in the contact prevention distance storage means when the identification information determination means determines that identification information is stored in the identification information storage means Distance determining means for determining whether or not
An alarm output means for outputting an alarm when the distance determination means determines that the calculated distance is smaller than the distance stored in the contact prevention distance storage means;
Each IC tag is
Self-identification information storage means for storing identification information assigned to the self-IC tag;
Radio wave receiving means for receiving radio waves transmitted by the radio wave transmitting means;
Power generation means for generating electric power using radio waves received by the radio wave reception means;
Identification information reading means for reading the identification information of the self-IC tag stored in the self-identification information storage means using the generated power;
The contact prevention system comprising: identification information transmitting means for transmitting the identification information read by the identification information reading means to the contact prevention device. A contact prevention system comprising a contact prevention device and at least one IC tag,
The contact prevention device is
Identification information storage means for storing identification information for identifying each IC tag;
Radio wave transmitting means for transmitting radio waves to the IC tag;
Identification information receiving means for receiving identification information transmitted from the IC tag;
Identification information determining means for determining whether or not the identification information received by the identification information receiving means is stored in the identification information storage means;
Alarm output signal transmitting means for transmitting an alarm output signal to the IC tag when the identification information determining means determines that identification information is stored in the identification information storage means,
Each IC tag is
Self-identification information storage means for storing identification information assigned to the self-IC tag;
Radio wave receiving means for receiving radio waves transmitted by the radio wave transmitting means;
Power generation means for generating electric power using radio waves received by the radio wave reception means;
Identification information reading means for reading the identification information of the self-IC tag stored in the self-identification information storage means using the generated power;
Identification information transmitting means for transmitting the identification information read by the identification information reading means to the contact prevention device;
An alarm output means for outputting an alarm when an alarm output signal is received from the alarm output signal transmitting means;
The contact prevention system characterized by further comprising. The contact prevention device is installed on a moving body,
The said contact prevention apparatus is further provided with the 1st control means to stop the drive of the said mobile body, when the said alarm output means outputs an alarm, The statement in any one of Claim 1 to 3 characterized by the above-mentioned. Contact prevention system as described. Instruction acquisition means for acquiring an alarm operation stop instruction for stopping the operation of the alarm output means;
Second control means for stopping output of an alarm by the alarm output means when the instruction acquisition means acquires an alarm operation stop instruction;
The contact prevention system according to any one of claims 1 to 3, further comprising: The contact prevention device is installed on a moving body,
The contact prevention device includes a moving body drive detecting means for detecting whether or not the moving body is driven,
Third control means for stopping the operation of each means of the contact prevention device when the moving body drive detecting means does not detect that the moving body is driven;
The contact prevention system according to any one of claims 1 to 3, further comprising: The contact prevention device is installed on a moving body,
The contact prevention device includes an operation instruction detection unit that detects whether or not an operation instruction for driving the moving body is input;
Fourth control means for stopping the operation of each means of the contact prevention device when the operation instruction detecting means does not detect that the operation instruction is input;
The contact prevention system according to any one of claims 1 to 3, further comprising:

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