JP2008090599A - Information reading device for underground buried equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the information reading device of underground buried equipment for making a wireless ID tag installed underground generate a power necessary for communication according to an electromagnetic induction signal generated by a reader/writer, and for supplying it to a sensor or an electronic circuit accessory to the sensor. <P>SOLUTION: This information reading device is provided with: an electromagnetic induction type wireless ID tag 10 installed underground, and equipped with a coil 10A for generating power according to an electromagnetic induction signal, and for performing wireless communication; a power source circuit 8A to be operated with a power to be supplied from the wireless ID; a sensor device 6 connected to the power source circuit for sensing the circumstances of the equipment buried underground; a controller 8A for reading a signal from the sensor device; a storage device 8D for storing a signal read by the controller; a transmission/reception circuit 8E for outputting the signal read by the controller as a radio signal; and a reader/writer device 12 installed on the ground, and equipped with a coil 12A for generating the electromagnetic induction signal for performing wireless communication with the wireless ID tag. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an information reading device for underground facilities, particularly manholes and handholes, and in maintenance inspection work for facilities buried under the road, etc. Without installing equipment, a power source that is fed contactlessly from the ground activates an electronic circuit device in the ground and acquires information indicating the reading and status of meters without contact via wireless communication The present invention relates to an information reading device for underground facilities.

  Conventionally, in the case of reading non-contact (wireless) information of equipment buried in the ground from the ground, wireless ID tags that can read and write data in a non-contact manner and the information in the ground are sensed to A sensor device that transmits to a wireless ID tag is installed in the ground, and a reader / writer that is wirelessly connected to the wireless ID tag and reads the data needs to be provided on the ground.

  In this case, the wireless ID tag installed in the basement is in a standby state. When a mode for specifying a reading method and a signal for specifying a sensor are transmitted from the ground by a reader / writer, the sensor with the wireless ID tag specified and The electronic circuit associated therewith is driven, and the measurement data is written to the wireless ID tag to be transmitted to the reader / writer via the wireless ID tag. (For example, refer to Patent Document 1).

Japanese Patent Laid-Open No. 11-85925

  The conventional information reading apparatus for underground facilities is configured as described above, and the wireless ID tag and the reader / writer transmit only a signal for starting the sensor by non-contact communication using electromagnetic induction, In addition, it is necessary to supply power for a sensor and sensor circuit for obtaining measurement data and a circuit for storing measurement data in a wireless ID tag.

  FIG. 21 shows the structure of the underground portion in the conventional information reading apparatus. That is, the underground burying equipment 1 is connected to the power supply circuit 1A via the power supply circuit 1A such as a battery embedded in the ground and the on-board sensor 1B that receives power from the power supply circuit 1A and obtains measurement data or the connection terminal 1C. The other sensors 1D functioning in the same manner as the mounted sensor 1B, the control circuit 1E that reads signals from each sensor, the storage circuit 1F that stores the signals read by the control circuit 1E, and the control circuit 1E It comprises a transmission / reception circuit 1H that converts a signal into a radio signal and transmits the signal to a reader / writer (not shown) on the ground via an antenna coil 1G.

  Since the device configured as described above is buried in the ground, the device cannot be used when the battery constituting the power supply circuit 1A is discharged. Therefore, it is necessary to periodically replace the battery. There is a problem that the cost for this and the underground work such as opening a manhole for battery replacement are necessary.

  In general, since a device installed in a manhole is used for a long period of 10 years or longer, the replacement work of the battery is indispensable in consideration of the current battery life. In addition, it is possible to apply a self-supporting power source such as a solar cell. In this case, however, a self-supporting power supply device and a cost for installing it are required.

  Furthermore, in the case of using batteries, ground equipment such as manholes and handholes is also necessary, and there is a problem in that it cannot be installed in a place where there is no ground equipment in addition to its installation cost. In addition, there is a problem that even if it is installed, it affects road construction such as redrawing of asphalt due to ground equipment.

  In addition, in the conventional apparatus, when communicating with the underground wireless ID tag using a reader / writer on the ground, it is necessary to temporarily close the road if the manhole is on the road. In the case of, there were problems such as that it was impossible to work until the office procedures and permission necessary for closure were received, securing traffic control personnel, and causing traffic congestion on roads with heavy traffic.

  In addition, when there are multiple manholes in the vicinity on wide roads and intersections, it is necessary to bring the reader / writer closer to each manhole and identify the ID number of each manhole. Therefore, in order to efficiently inspect a plurality of manholes, there is a problem that it is necessary to prepare an inspection plan and to examine a patrol order in advance.

  The present invention has been made to solve the above-described problems. In addition to generating electric power required for communication by a wireless ID tag by an electromagnetic induction signal generated by a reader / writer, the present invention is attached to a sensor or a sensor. It is a first object of the present invention to provide an information reading device for underground facilities that can generate and supply power necessary for the operation of an electronic circuit by a wireless ID tag and does not require a battery in the device itself.

  Also, an information reading device for underground facilities is attached to the bottom of an automobile, etc., and an operator passes over the wireless ID tag in the ground while driving the automobile, and a sensor is passed through the wireless ID tag by an electromagnetic induction signal. Underground equipment equipped with a navigation device that can accurately detect the position of a wireless ID tag under a manhole or asphalt that drives an electronic circuit and a worker performs inspection work while riding in an automobile or the like A second object is to provide an information reading apparatus.

  An information reading device for underground facilities according to the present invention includes an electromagnetic induction type wireless ID tag that is provided in the ground, generates electric power by an electromagnetic induction signal, and has a coil capable of wireless communication, and the wireless ID tag. A power supply circuit that operates based on the power supplied from, a sensor device that is connected to the power supply circuit in the ground and senses the state of equipment buried in the ground, and is connected to the power supply circuit in the ground. A control device that reads a signal from the sensor device, a storage device that stores the signal read by the control device, and a signal that is provided in the ground and read by the control device is converted into a radio signal and then output through an antenna coil. A transmitter / receiver circuit configured to be able to transmit and a coil provided on the ground for generating the electromagnetic induction signal, and capable of wireless communication with the wireless ID tag And a battery that is provided on the ground and supplies power to the wireless power supply reader / writer device, and controls the wireless power supply reader / writer device to receive the wireless communication. And a portable terminal device capable of storing data.

  An information reading device for underground facilities according to the present invention is configured as described above, and generates electric power to a wireless ID tag in the ground in a non-contact manner using an electromagnetic induction signal, and an electronic circuit associated with the sensor or sensor. Therefore, no battery is required in the ground, and therefore no underground work such as replacement is required.

  Furthermore, since it is not a direct power supply but a wireless power supply, power can be supplied through asphalt or concrete, so that the ground device can be completely buried underground. This makes it possible to install the ground equipment in the basement without a manhole cover, and also facilitate construction such as redrawing asphalt. Further, by attaching a reader / writer to the automobile, it is possible for an operator to perform inspection while riding on the automobile, and a plurality of inspections can be efficiently performed.

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic cross-sectional view showing the overall configuration of the first embodiment and the situation of reading work by a worker. As shown in this figure, a buried pipeline 4 is laid in a manhole 3 formed below the ground 2, and a valve 5 for adjusting the amount of water flowing through the pipeline is provided.

  For example, the valve 5 is provided with a sensor 6 for reading the opening degree, and a reading signal of the sensor 6 is transmitted to the control device 8 mounted on the inner surface of the lid 7 of the manhole via the cable 9. An electromagnetic induction type wireless ID tag 10 is embedded in the lid 7.

  The wireless ID tag 10 generates electric power by electromagnetic induction signals from the ground, constitutes a power source for the control device 8 and the sensor 6, and transmits reading values of the sensors and the control device to the ground. It will be described later.

  A worker 11 on the ground generates an electromagnetic induction signal by a power supply reader / writer (hereinafter referred to as a reader / writer) 12 to generate electric power in a non-contact manner in the wireless ID tag 10 in the ground, and the sensor value of the wireless ID tag 10 is set. Can be read.

  The worker 11 also has a portable terminal 13 from which power can be supplied to the reader / writer 12 and the value read by the reader / writer 12 can be referred to on-site. FIG. 2 shows the configuration of the portable terminal 13 and the reader / writer 12.

  In FIG. 2, the portable terminal 13 controls a rechargeable or replaceable battery 13 </ b> A for supplying power to the reader / writer 12, and power supply from the battery 13 </ b> A to a reader / writer with a power feeding coil to be described later. A terminal power supply circuit 13B and a PDA (Personal Digital Assistant) or a small personal computer 13C that can be displayed on the operator 11 by executing a program created in advance and can be connected to a reader / writer with a coil for feeding Have.

  A PDA or a small personal computer 13C operates a sensor data display function 13D, which is a program for displaying the read sensor data on the worker 11, and power on / off of the reader / writer 12 and command transmission / reception. And a power supply reader control function 13E that is a program.

  Further, the reader / writer 12 is provided with a coil for generating electromagnetic induction, and has a reader / writer 12 </ b> A with a power feeding coil for performing wireless communication with the underground electromagnetic induction type wireless ID tag 10.

  FIG. 3 shows the configuration of the electromagnetic induction type wireless ID tag 10 and the control device 8 and the connection relationship between them and the sensor 6. In FIG. 3, a wireless ID tag 10 embedded in a manhole cover 7 has an antenna coil 10A for receiving electric power and a signal wirelessly based on an electromagnetic induction signal emitted from a reader / writer 12.

  Further, the control device 8 mounted on the inner surface of the manhole cover 7 controls the power supplied from the antenna coil 10A of the wireless ID tag 10, and supplies a power circuit 8A for supplying to other circuits and sensors described later, and the sensor. 6 to supply the power of the power supply circuit 8A to the sensor 6, and to receive the detection value of the sensor 6 and the supply of power from the power supply circuit 8A so that the sensor 6 can be activated instantly. A control circuit 8C that is designed and manufactured to read a detection value from the sensor 6, and a storage circuit 8D that is a compact flash (registered trademark) card or ROM that can store a signal read by the control circuit 8C without a power source. After modulation / demodulation and encryption of the radio signal input and output from the antenna coil 10A, specifically, after the signal read by the control circuit 8C is converted into a radio signal And a transceiver circuit 8E for outputting via the antenna coil 10A.

Next, the operation of this embodiment will be described with reference to the flowchart shown in FIG.
In step 002, the worker 11 operates the portable terminal 13 to turn on the reader / writer 12 when checking the manhole cover 7. When the power is turned on, power is supplied from the battery 13A of the portable terminal 13 to the reader / writer 12A with a power feeding coil of the reader / writer 12 via the portable terminal power supply circuit 13B and the cable 13F. The power supplied to the reader / writer 12A with the power supply coil has a mechanism in which the current is changed at a constant cycle by the portable terminal power supply circuit 13B, thereby generating a magnetic field continuously and thereby the reader / writer 12A with the power supply coil. Thus, an electromagnetic induction signal is generated.

  Next, in step 003, the worker 11 brings the reader / writer 12 whose power is turned on closer to the electromagnetic induction type wireless ID tag 10 embedded in the manhole cover 7 to be inspected.

  The antenna coil 10A of the electromagnetic induction type wireless ID tag 10 to which the reader / writer 12 is brought close generates power by the magnetic field generated by the reader / writer 12A with a feeding coil in step 004, and the power is supplied to the power supply circuit 8A to be activated. . Subsequently, in step 005, the power supply circuit 8A supplies power to each circuit in the control device 8 and simultaneously supplies it to the sensor 6 via the underground cable 9. The control circuit 8C activated by supplying power reads the value of the sensor 6 similarly activated in step 006, and further identifies the ID for identifying the electromagnetic induction type wireless ID tag 10 from the storage circuit 8D in step 007 and the previous inspection date. Read other necessary information such as date.

  If necessary, the date of inspection and the data read in step 008 are written in the storage circuit 8D, and at the same time, the information is encrypted and converted into a radio signal by the transmission / reception circuit 8E. Output.

  The radio signal output from the antenna coil 10A is received by the reader / writer 12A with a power feeding coil in step 010, read in the PDA 13C of the portable terminal 13 connected by the cable 13F in step 011, stored as data, and displayed at the same time. The worker 11 is notified by a sound and a sound, and the worker 11 can confirm that the reading of data is completed.

  When the reading operation is completed, the worker 11 can turn off the power or, if there is a manhole to be checked next, approach the next manhole with the power turned on and perform the same checking work. . The read data can be referred to by the worker 11 on the spot, and can be stored in a personal computer of the office after returning to the office after completion of the work. In the office, the same operation can be performed next time by charging the battery 13A of the mobile terminal 13 or the like.

  Embodiment 1 is configured as described above, and combines an electromagnetic induction type wireless ID tag, a reader / writer that supplies power to the wireless ID tag, a control circuit that is supplied with power from the wireless ID tag, and a sensor. Thus, it is possible to acquire information on sensors in the manhole without providing a battery inside the manhole and without entering the manhole.

  When entering a manhole, a lot of prior work such as traffic blockage, removal of water accumulated inside, and confirmation of stagnation of dangerous gas is necessary, but according to Embodiment 1, these work are omitted. And the work efficiency can be greatly improved. Furthermore, according to this embodiment, since the battery in the manhole is unnecessary, the battery replacement work is also unnecessary, and the maintenance cost for that purpose can be greatly reduced.

Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described with reference to the drawings. FIG. 5 shows a configuration of the portable terminal and the reader / writer in the second embodiment. In this figure, the same or corresponding parts as in FIG. A difference from FIG. 2 is that a sensor data continuous reading function 13G is added to the PDA 13C of the portable terminal 13a, and the values of the sensors are continuously read by this function, so that the operation of the handle connected to the sensor is continuously performed. This is a point that can be adjusted.

  A specific example at this time is shown in FIG. FIG. 6 is a schematic cross-sectional view showing the overall configuration of the state where the manhole cover 7 is removed and the manhole is opened and the situation of reading work by the worker. In this figure, the same or corresponding parts as those in FIG.

  Reference numeral 14 in the drawing is a handle or an adapter for connecting the handle, which is coupled to the valve 5 to operate the opening / closing degree of the valve, and 15 is a dedicated tool for operation connected to the opening / closing handle 14 of the valve from outside the manhole.

  As shown in FIG. 6, when the worker 11 uses the dedicated tool 15 for operating the valve opening / closing handle 14 from the outside of the manhole 3, the reader / writer 12 is installed in the vicinity of the electromagnetic induction type wireless ID tag 10, By continuously transmitting sensor reading signals from the mobile terminal 13a and displaying the read sensor values continuously on the mobile terminal 13a, the worker 11 operates the dedicated tool 15 while referring to the sensor value, It can be adjusted to an appropriate opening.

  Rainwater and harmful gases may accumulate in the manhole, and when workers work in the manhole, it may be necessary to perform preliminary work such as drainage, check for the presence of harmful gases, and install blower equipment. However, according to the second embodiment, since the work can be performed without installing a power source in the manhole and without an operator entering the manhole, the above-described preliminary work can be omitted, and work efficiency can be reduced. It can be greatly improved.

Embodiment 3 FIG.
Next, a third embodiment of the present invention will be described with reference to the drawings. FIG. 7 shows a configuration of the portable terminal and the reader / writer in the third embodiment. In this figure, the same or corresponding parts as in FIG. The difference from FIG. 5 is that a plurality of sensors are attached by using a portable terminal 13b in which a plurality of sensors are attached to the control device 8 and a function 13H for selecting a sensor to be operated is added to the PDA 13C of the portable terminal 13a. It is possible to attach to one manhole.

  Specifically, as shown in FIG. 8, a plurality of sensors 6a, 6b,... 6n such as turbidity, pH, residual chlorine concentration, water pressure, water temperature, etc. for measuring water quality are connected to the control device 8 and stored. The circuit 8D is provided with sensor information 8F in which information such as data type, value range, accuracy, and the like is written in addition to the sensor type.

  Next, the operation of the third embodiment will be described with reference to the flowchart shown in FIG. In step 102, the worker 11 turns on the power of the reader / writer 12 in the same manner as in the first embodiment. In step 103, the worker 11 moves the reader / writer 12 closer to the manhole cover 7 to be inspected. Power is supplied via the electromagnetic induction type wireless ID tag 10 to activate the control circuit 8C.

  At the same time as the power is supplied, the portable terminal 13b transmits a sensor information acquisition command to the electromagnetic induction type wireless ID tag 10 in step 104a via the reader / writer 12A with a feeding coil. The control circuit 8C supplied with power is activated in step 104b and receives and analyzes a command from the electromagnetic induction type wireless ID tag 10 in step 104C.

  Next, in step 104d, the sensor information 8F written in the storage circuit 8D is read out, and the antenna coil 10A is converted into a radio signal after being encrypted or converted into a radio signal by the transmission / reception circuit 8E in the same manner as the reading of the sensor data in the first embodiment. To the reader / writer 12A with the coil for power supply.

  The reader / writer 12A with the coil for feeding power transfers the received sensor information to the PDA 13C, and displays the sensor information on the worker 11 by the sensor selection function 13H for displaying the sensor information installed in advance. The worker works at step 104e. Select the target sensor. Of course, at this time, the worker 11 can select one or a plurality of sensors. The selected sensor type is converted into, for example, ID, and the sensor reading command and the sensor ID are transmitted to the electromagnetic induction type wireless ID tag 10 from the reader / writer 12A with the power feeding coil to the control circuit 8C in step 104f.

  The control circuit 8C that has received the sensor ID and the read command supplies power from the power supply circuit 8A to the sensor selected in step 105a, reads out the sensor data in the same manner as in the first embodiment, and sends it to the portable terminal in steps 106 to 110. At the same time, the worker 11 is notified that the reading has been completed.

  Even when a plurality of sensors are attached as described above, similarly to the first embodiment, it is possible to supply power from the outside of the manhole in a non-contact manner and read data of a predetermined sensor installed in the manhole. .

Embodiment 4 FIG.
Next, a fourth embodiment of the present invention will be described with reference to the drawings. FIG. 10 shows a configuration of the portable terminal and the reader / writer in the fourth embodiment. In this figure, the same or corresponding parts as in FIG. The difference from FIG. 7 is that a sensor information input function 13J is added so that writing to the storage circuit 8D of the portable terminal 13d and the reader / writer 12A with a feeding coil can be immediately updated at the work site. .

  The operation of this embodiment will be described with reference to the flowchart shown in FIG. First, in step 202, the worker 11 inputs sensor information that needs to be added or changed by the sensor information input function 13J of the mobile terminal 13d after the sensor addition work is completed.

  When the input is completed, the power of the reader / writer 12 is turned on in step 203 and the sensor information rewrite command and the added sensor information are transmitted in the same manner as in steps 002 to 003 in the first embodiment. The control circuit 8C is activated by bringing it closer to the manhole cover 7 to be changed.

  The control circuit 8C receives and analyzes the sensor information rewrite command and the added sensor information of the sensor at step 207, and updates the sensor information 8F of the storage circuit 8D at step 208 based on the information. The control circuit 8C having completed the information update transmits the update completion to the portable terminal 13d through the electromagnetic induction type wireless ID tag 10 and the reader / writer 12 in step 209 as in the first embodiment, and the portable terminal 13d in steps 210 to 211. Notifies the worker 11 of the completion of the update.

  As described above, in the information reading device of the underground facility that can communicate and supply power with the wireless ID tag in a non-contact manner, the information related to the additional sensor is stored by storing the information 8F related to the sensor in the storage circuit 8D of the wireless ID tag. Can be updated immediately during work in the manhole at the site, and can be managed centrally at the site, and the read sensor information 8F is automatically stored in the office at the same time as the sensor data. It becomes possible to update. This not only eliminates manual updating of the ledger, but also eliminates inconsistencies between the ledger and on-site sensor information due to omissions in updating the ledger and data entry errors, greatly improving on-site work. can do.

Embodiment 5. FIG.
Next, a fifth embodiment of the present invention will be described with reference to the drawings. FIG. 12 shows the configuration of the portable terminal and the reader / writer according to the fifth embodiment, and FIG. 13 shows the configuration of the wireless ID tag and the control device and the connection relationship between these and the sensor. In these drawings, the same or corresponding parts as those in FIG. 10 or FIG. The difference from FIG. 10 or FIG. 8 is that not only sensor information but also a program such as conversion of read sensor data or equipment abnormality determination by sensor data when the storage circuit 8D operates with a rewritable program. It is a point that can be changed.

  For this reason, as shown in FIG. 12, a PDA 13C is provided with a portable terminal 13e provided with a control program changing function 13K. Further, as shown in FIG. 13, the control circuit 8G and its program name are stored in the storage circuit 8D of the control device 8. Control program information 8H describing the version is provided.

  Next, the operation of the fifth embodiment will be described using the flowchart shown in FIG. First, in step 302, the worker 11 selects a program of the control device 8 that needs to be added or changed by the control program changing function 13K of the portable terminal 13e.

  When the input is completed, the reader / writer 12 is turned on in step 303 in the same manner as in steps 002 to 003 in the first embodiment, and a manhole cover for changing sensor information while transmitting a program rewrite command in steps 304 to 306 The control circuit 8 </ b> C is activated by approaching 7.

  Next, in step 307, the control circuit 8C receives the program rewrite command, and in step 308 reads information such as the program name and version number already stored in the storage circuit 8D from the control program information 8H of the storage circuit 8D. In steps 309 and 310, the electromagnetic wave is transmitted to the portable terminal 13e via the electromagnetic induction type wireless ID tag 10 and the reader / writer 12.

  Next, in step 311, the portable terminal 13 e compares the transmitted program information with the name and version of the program previously selected by the worker 11, thereby selecting a program that needs to be updated. Subsequently, the program and program information selected in steps 312 and 313 are transmitted to the control device 8 via the reader / writer 12 and the electromagnetic induction type wireless ID tag 10.

  In step 314, the control device 8 updates the control program 8G and the control program information 8H by the control circuit 8C. Further, in steps 315 and 316, the control circuit 8C notifies the program update completion to the control program change function 13K of the portable terminal 13e via the electromagnetic induction type wireless ID tag 10 and the reader / writer 12, and in step 317 the screen is displayed on the portable terminal 13e. The operator 11 is notified of the completion of the update by display or sound.

  As described above, when the control device operates with a rewritable program, it is possible to change the program for converting the read sensor data and determining abnormality of the sensor data in the same way as updating the sensor information. It is. In other words, since the program itself can be easily changed on site, there is no need to open the manhole cover or update the control device body when updating the program, reducing the maintenance cost of the control device. It becomes possible.

Embodiment 6 FIG.
Next, a sixth embodiment of the present invention will be described with reference to the drawings. In the first embodiment and the third to fifth embodiments, the maintenance and inspection work of the electromagnetic induction type wireless ID tag 10 attached to the lid 7 of the manhole has been described. However, in the sixth embodiment, the electromagnetic induction type wireless ID tag 10 is described. It is targeted for the case where is installed under asphalt laid on the road.

  FIG. 15 is a schematic cross-sectional view showing the overall configuration in this case and the situation of reading work by an operator. In this figure, the same or corresponding parts as those in FIG. 16 is asphalt.

  When the electromagnetic induction type wireless ID tag 10 is installed under the asphalt 16, so that the worker 11 can determine the position of the electromagnetic induction type wireless ID tag 10 from the ground, as shown in FIG. A navigation function 13L indicating position information to the worker 11 is added to form a portable terminal 13f with position information. The navigation system 13L includes underground buried equipment position information 13M indicating the detailed position of the electromagnetic induction type wireless ID tag 10 on the road and an ID number assigned in advance to each manhole, that is, sensor information indicating the sensor type described above and the previous time. It is necessary to inspect the inspection plan or detect an abnormality while referring to the embedded equipment inspection ledger 13N, the underground equipment location information 13M and the buried equipment inspection ledger 13N that record the read data values and past inspection records at the time of inspection. Underground facility input function 13P for the operator 11 to input the manhole to be operated, the underground facility location guidance function 13Q for identifying the location of the input manhole and notifying the worker 11 of the location by voice or map, and high accuracy GPS13R is equipped.

  Next, the operation of the sixth embodiment will be described. When the worker 11 arrives in the vicinity of an underground facility such as the buried pipeline 4 that needs to be inspected, the electromagnetic induction type wireless ID that needs to be read using the underground facility input function 13P of the inspection ground mobile terminal 13f with position information. Enter the ID number of the tag 10 and the name of the buried equipment.

  Based on this input, the underground facility location guidance function 13Q searches the embedded facility inspection ledger 13N, and acquires position information such as precise latitude and longitude of the electromagnetic induction type wireless ID tag 10. Further, while acquiring accurate position information of the worker 11 from the high-precision GPS 13R, the positional relationship between the worker 11 and the electromagnetic induction type wireless ID tag 10 is notified by voice or a screen, and the worker 11 is notified of the electromagnetic induction type wireless ID tag Guide to position 10.

  The worker 11 guided to the position of the electromagnetic induction type wireless ID tag 10 is connected to an inclinometer, a water leak detector, a flow rate of a pipe attached to an underground facility such as the buried pipeline 4 as in the above embodiments. Read information from sensors such as water quality measuring devices.

  As described above, since Embodiment 6 adds position information to the mobile terminal, it is easy to check not only manholes but also facilities and sensor devices embedded in the ground. Conventionally, installation of manholes and handholes was necessary to attach monitoring equipment to underground facilities, but these installations can be omitted if only sensing is required. Thus, the construction cost can be reduced.

  Furthermore, the worker 11 can be accurately guided to the position of the wireless ID tag of the facility buried in the ground, and the inspection work efficiency of the worker can be improved. Furthermore, by embedding a large number of electromagnetic induction type wireless ID tags 10, it becomes possible to easily specify the position of the pipe line during pipe work without installing ID tags or measuring devices on the road surface. It is possible to reduce the construction cost by preventing mistakes in drilling.

  In addition, since there is no need to install ID tags or measuring devices on the road surface, there is no risk of being stepped on directly on the car, and it will not be worn out, broken, or in some cases mischievous, reducing maintenance costs. Can do. Furthermore, it is possible to prevent a running automobile from slipping or a pedestrian from creeping, which is also effective in ensuring road safety.

Embodiment 7 FIG.
Next, a seventh embodiment of the present invention will be described with reference to the drawings. In the first embodiment and the third to sixth embodiments, an example is shown in which information of sensors installed in a manhole or under asphalt is read while the worker moves on foot. Shows an example in which an inspection work is performed, for example, in an automobile.

  FIG. 17 is a schematic cross-sectional view showing the work status in that case. In this figure, the same or corresponding parts as those in FIG. In other words, the reader / writer 12 and the portable terminal 13g with a navigation function in which a navigation function is added to the portable terminal are attached to the automobile 17. FIG. 18 is a schematic view of FIG. 17 as viewed from above. As shown in FIG. 18, a plurality of reader / writers 12 are attached under the vehicle body in accordance with the vehicle width. In addition, the navigation system 13L (FIG. 16) is mounted on the automobile 17 in order to confirm the position information of the manhole in the mobile terminal 13g with a navigation function.

  In the navigation system 13L, as in the sixth embodiment, the underground equipment location information 13M indicating the detailed location of the manhole on the road, the location and ID of the manhole, the sensor information and the inspection status 13N are recorded. In addition, an underground facility input function 13P used for an operator to input a manhole position and a high-accuracy GPS 13R for specifying the detailed position of the automobile 17 are provided.

Furthermore, the input of the manhole location, the route information to the manhole, and the traveling route determination function 13S for determining the optimum traveling route when a plurality of manholes are set are added. In addition, in the underground facility location guidance function, in addition to the traveling route determination function 13S, the route information and the function of instructing the worker 11 on the route information and the position of the manhole on the road by voice or image are added. The inside buried equipment guidance function 13T.
Furthermore, a navigation system cooperation function 13U that transmits manhole information read into the navigation system 13L is added to the PDA 13C.

  Next, the operation of the seventh embodiment will be described. Before starting the work, the worker 11 sends the position information of the single or plural manhole covers 7 or the electromagnetic induction type wireless ID tags 10 to be inspected to the navigation system 13L, and the underground equipment position information. Input from 13M by the underground facility input function 13P.

  In the position information, in addition to the position such as latitude and longitude, detailed information such as which lane or on the right, left or center of the road the manhole cover 7 is located and whether inspection is possible from the car 17 is prepared. Yes. When the input is completed, the traveling route determination function 13S automatically determines the order of the traveling and the route information through which the automobile 17 passes according to the position information of the manhole cover 7 to be visited.

  If the position of the selected manhole cover 7 is at the end of the sidewalk or lane and inspection is not possible, the underground equipment installation guidance function 13Q or 13T notifies the worker 11 of the warning and the object to be inspected. Excluded from.

  When the route is determined, the traveling route / underground equipment guidance function 13T acquires the precise current position of the automobile 17 from the high-accuracy GPS 13R, and instructs the worker 11 on the operation method of the automobile 17 by voice, a display, or the like.

In addition to the usual car navigation system and other guides, the driving instructions are combined with detailed current position information acquired by the high-precision GPS 13R, which lane on the road or which side of the lane is on the road. It is possible to instruct the worker 11 a predetermined time before passing through each manhole, and the worker 11 approaches the manhole cover 7 or the wireless ID tag 10 while driving the automobile 17 safely and passes directly above. It is possible.
Further, when the traveling route / underground equipment guidance function 13T detects the movement of the automobile 17 by the high-accuracy GPS 13R or the like, the reader / writer 12 is turned ON to enable the reading and writing.

  The operation when the automobile 17 passes over the manhole cover 7 or the wireless ID tag is the same as in the first or third embodiment. When the reader / writer 12 attached under the vehicle body of the automobile 17 passes directly above the manhole cover 7 or the electromagnetic induction type wireless ID tag 10, the antenna coil 10A is generated by the magnetic field generated by the reader / writer 12A with the feeding coil. Generates power, and power is supplied from the power supply circuit 8A to the control circuit 8C, the sensor 6 and the storage circuit 8D, and the control circuit 8C supplies sensor values from the sensor 6 and manhole information such as the manhole ID number and sensor type from the storage circuit 8D. Is read and data is transmitted from the electromagnetic induction type wireless ID tag 10 to the reader / writer 12.

  Here, the reader / writer 12 is always in an ON state while the automobile 17 is moving, and can always be read / written. The electromagnetic induction type wireless ID tag 10, the electronic circuit such as the power supply circuit 8 </ b> A, and the sensors 6 are activated by the reader / writer 12 and read and transmit data. It is possible to develop a system relatively easily.

  The read sensor value and manhole information are stored in the PDA 13C of the mobile terminal with navigation function 13g. The read manhole information such as the manhole ID and the read result are sent to the tour route / underground equipment guidance function 13T by the navigation system cooperation function 13U.

The traveling route / underground equipment guidance function 13T introduces the manhole ID and makes a reference to the guidance information to determine whether the correct manhole has been accessed. If an abnormality occurs during reading and the reading result is unsuccessful, or if it is determined that an incorrect manhole has been accessed, the operator will be able to hear the sound and screen etc. using the patrol route / underground equipment guidance function 13T. 11 and at the same time, if re-reading is necessary, a route change or the like is performed in the cyclic route determination function 13S. Further, when the operation of the facility is required, the worker 11 is similarly notified by the traveling route / underground facility guidance function 13T.
The worker 11 only has to get out of the car and perform the operation work on foot.

  As described above, Embodiment 7 can be combined with a navigation system, so that an operator can inspect a manhole with an automobile, and the efficiency of the inspection work can be greatly improved. In addition, since it is possible to inspect manholes on roads (roadways) from automobiles, it is not necessary to block traffic on the roads associated with inspection work, and administrative work such as preparation of application documents and application necessary for traffic blocking, traffic It also has the effect of reducing traffic jams.

Embodiment 8 FIG.
Next, an eighth embodiment of the present invention will be described with reference to the drawings. In the seventh embodiment, the wireless ID tag provided on the manhole cover is detected and inspected by the automobile. In the eighth embodiment, the electromagnetic induction type wireless ID tag 10 directly installed under the asphalt is installed in the automobile. It is possible to check with.

  A schematic cross-sectional view in this case is shown in FIG. In this figure, the same or corresponding parts as those in FIG. In this case, the sensor 6 senses road surface conditions such as road surface temperature, freezing conditions, and asphalt damage, and is installed near the asphalt. Here, the electromagnetic induction type wireless ID tag 10 and the sensor 6 are shown as separate devices, but since both are installed near the road surface, they can be accommodated in the same device.

  As for the operation, as in the seventh embodiment, the worker 11 sends the position information of the electromagnetic induction type wireless ID tag 10 attached to one or a plurality of underground facilities to be inspected to the navigation system 13L. The vehicle 17 is input in accordance with the inspection route underground facility input function 13P from the underground facility position information 13M, and the route and the position on the road instructed by the traveling route / underground facility guidance function 13T. By passing the electromagnetic induction type wireless ID tag 10 directly above, it is possible to sequentially acquire the sensor value from the sensor 6 and the information of the underground facility such as the manhole ID number and sensor value from the storage circuit 8D.

  According to this embodiment, for example, in a place where a manhole cannot be installed, such as an expressway, it can be applied to the case where the road surface temperature, freezing conditions, road surface conditions such as asphalt damage are sensed, etc. It is possible to collect information sensed by installing a sensor even in a place where the sensor is not attached.

It is a schematic sectional drawing which shows the condition of the whole structure of Embodiment 1 of this invention, and the reading operation | work by a worker. 1 illustrates a configuration of a mobile terminal and a reader / writer according to Embodiment 1. The structure of the electromagnetic induction type wireless ID tag and control device in Embodiment 1, and the connection relationship between these and the sensor are shown. 3 is a flowchart for explaining the operation of the first embodiment. The structure of the portable terminal and reader / writer in Embodiment 2 of this invention is shown. It is a schematic sectional drawing which shows the state of the whole structure of the state which removed the manhole cover in Embodiment 2, and the manhole opened, and the reading operation | work by a worker. The structure of the portable terminal and reader / writer in Embodiment 3 of this invention is shown. The structure of the electromagnetic induction type wireless ID tag in Embodiment 3, the structure of a control apparatus, and the connection relationship between these and a sensor are shown. 10 is a flowchart for explaining an operation of the third embodiment. The structure of the portable terminal and reader / writer in Embodiment 4 of this invention is shown. 10 is a flowchart for explaining an operation of the fourth embodiment. The structure of the portable terminal and reader / writer in Embodiment 5 of this invention is shown. The structure of the electromagnetic induction type wireless ID tag in Embodiment 5, the structure of a control apparatus, and the connection relationship between these and a sensor are shown. 10 is a flowchart for explaining the operation of the fifth embodiment. It is a schematic sectional drawing which shows the whole structure of Embodiment 6 of this invention, and the condition of the reading operation | work by a worker. The structure of the portable terminal and reader / writer in Embodiment 6 of this invention is shown. It is a schematic sectional drawing which shows the whole structure of Embodiment 7 of this invention, and the condition of the reading operation | work by a worker. It is the schematic which looked at FIG. 17 from the upper surface. 10 shows a configuration of a navigation system, a mobile terminal, and a reader / writer according to Embodiment 7. It is a schematic sectional drawing which shows the whole structure of Embodiment 8 of this invention. The structure of the underground part in the conventional information reader is shown.

Explanation of symbols

1 underground facility, 1A power supply circuit, 1B mounted sensor, 1C connection terminal,
1D other sensors, 1E control circuit, 1F memory circuit,
1G antenna coil, 1H transceiver circuit, 2 ground, 3 manhole,
4 buried pipes, 5 valves, 6 sensors, 7 lids, 8 control devices,
8A power supply circuit, 8B connection terminal, 8C control circuit, 8D memory circuit,
8E transceiver circuit, 8F sensor information, 8G control program,
8H program information, 9 cable, 10 wireless ID tag,
10A antenna coil, 11 worker, 12 reader / writer,
12A Reader / writer with power feeding coil
13, 13a, 13d, 13e portable terminal, 13A battery,
13B portable terminal power supply circuit, 13C PDA, 13D sensor data display function,
13E Feeding reader control function, 13F cable,
13G sensor data continuous reading function, 13H reading sensor selection function,
13J sensor information input function, 13K controller program change function,
13L navigation system, 13M underground facility location information,
13N buried equipment inspection ledger, 13P inspection underground equipment input function,
13Q underground facility location guidance function, 13R high precision GPS,
13S patrol route decision function,
13T patrol route underground facility location guidance function,
13U navigation system linkage function, 14 handle or adapter,
15 dedicated tools, 16 asphalt, 17 cars.

Claims (8)

  An electromagnetic induction type wireless ID tag provided in the ground and generating electric power by an electromagnetic induction signal and having a coil capable of wireless communication; and a power supply circuit that operates based on electric power supplied from the wireless ID tag; A sensor device connected to the power supply circuit in the ground and sensing the status of equipment buried in the ground, a control device connected to the power supply circuit in the ground and reading a signal from the sensor device, and the control device A storage device that stores the signal read in step 1, a transmission / reception circuit that is provided in the ground and that can be output via an antenna coil after converting the signal read by the control device into a radio signal, and provided on the ground A wirelessly powered reader / writer device having a coil for generating the electromagnetic induction signal and capable of wirelessly communicating with the wireless ID tag; A portable terminal device having a battery for supplying power to the wireless power supply reader / writer device and capable of storing the data received by wireless communication by controlling the wireless power supply reader / writer device. An information reader for underground facilities.   The information reading device for underground facilities according to claim 1, further comprising means for continuously sensing the sensor device.   A plurality of the sensor devices are provided so that a plurality of conditions of equipment buried in the ground can be sensed, and a sensor device to be sensed by the portable terminal device can be designated. The information reading device for underground facilities according to claim 1 or 2.   When the sensor device is added, means for instructing addition or change of sensor information is provided in the portable terminal device, and the data in the storage device is added or changed via the wireless power supply reader / writer device and the wireless ID tag. The information reading apparatus for underground facilities according to claim 1, wherein the information is rewritten into sensor information.   The portable terminal device is provided with means for instructing addition or change of a control program, and the storage circuit is provided with a control program and control program information describing the program name and version, and the wireless power supply reader / writer device, 2. The information reading apparatus for underground facilities according to claim 1, wherein a control program in the storage circuit can be added or changed via a wireless ID tag.   The wireless ID tag is installed in asphalt laid on the ground or in the ground near the road surface below the asphalt, and a position guidance means for detecting the position of the wireless ID tag and giving the information is provided in the portable terminal device The information reading apparatus for underground facilities according to claim 1.   A portable terminal device provided with a position guidance means for detecting the position of the wireless ID tag and providing the information in the asphalt laid on the ground or in the ground near the road surface below the wireless ID tag; The wireless power supply reader / writer device is installed in an automobile, and a signal is read from the sensor device via the wireless power supply reader / writer device and a wireless ID tag in a state where an operator rides on the automobile, and the portable terminal device The information reading device for underground facilities according to claim 1, wherein the information reading device can be stored in the underground facility.   If the wireless power supply type reader / writer device cannot read the signal from the sensor device, or if it is found that the wrong sensor device has been accessed, a means for notifying the fact is provided in the portable terminal device. The information reading apparatus for underground facilities according to claim 7.

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