JP6328209B2 - Sensor installation registration management system - Google Patents

Description

  The present invention relates to a sensor installation registration management system for registering an installation location, monitoring an operation state of a sensor, and communicating when installing an electronic device such as a sensor.

  In recent years, many sensors such as fire sensors, radiation measuring instruments, and water meters have been installed, both indoors and outdoors, but the location of these sensors can be managed separately by registering them in the installation ledger. Although it was common until now, in recent years there are many examples of installing a GPS detector in the sensor and digitizing the installation ledger. Typical methods for specifying the installation position information include a method using GPS information disclosed in Patent Document 1 and a base station information of a PHS mobile phone disclosed in Patent Document 2. Installation of a specific device on all sensors is expected to be improved from the viewpoint of increasing the price of sensors and reducing the power consumption of sensors, considering the arrival of an era when many of these sensors will be installed in the future. It is what Also, considering installation in the mountains, from the viewpoint of sensor information communication, the public wireless communication network is expected to have a more stable wireless communication system because the communication quality is not stable due to the number of base stations installed. Has been.

JP-A-8-180286 JP 2001-218247 A

  A system that can comprehensively manage the installation location without adding a GPS detector to a sensor such as a fire sensor or landslide sensor, and also places importance on communication stability and power saving when selecting the communication method for sensor information. The sensor device can be reduced in price and power saving.

  At the time of sensor installation, an installation location registration device having a GPS detector is used, and an ID code is assigned to the sensor from the registration device. The installation location registration device manages the assigned ID code and GPS information at that point in pairs. After the installation is completed, the managed pair information is registered in the integrated management station. When an abnormality occurs, the sensor notifies the general management station of the assigned ID code and the abnormal state using wireless communication. An LPWA (Low Power Wide Area) method is used as the wireless communication method. The Integrated Management Bureau is notified of the occurrence of an abnormal condition, can immediately determine where the abnormality is (such as a fire at the west end of the 3rd AA mountain), and take necessary measures. As the installation location registration device, a smartphone having a common sense of mounting a GPS sensor can be used, and a simple system can be constructed.

  Moreover, the installation cost can be reduced by utilizing the marker pile marketed in the mass sales store as the installation means in the mountains of the sensor.

  It is not necessary to mount a device for position identification on the sensor, which can contribute to power saving and cost reduction of the entire sensor. The sensor of the present invention can detect fires, landslides, and bear walks in the mountains, can immediately report abnormal conditions that occur in the mountains, and enables immediate countermeasures. Further, by using the LPWA wireless system, it is possible to further reduce the power consumption of the device, and the device can withstand operation for 5 years or more without battery replacement.

It is a figure which shows the relationship between the sensor by this invention, an installation location registration device, and an integrated management station. It is a figure which shows the relationship between the sensor by this invention, a radio relay station, and an integrated management station. It is a figure which shows the internal structure of the sensor communication device by this invention. It is a figure which shows the internal structure of the installation location registration device by this invention. It is a figure which shows the structure of the smart phone buffer 30 as an installation tool, when a smart phone is used as an installation location registration device by this invention. (A) A communication sequence between the sensor communication device according to the present invention, a wireless relay station, and an integrated management station, and (b) a signal format. It is a conceptual diagram which shows 2nd Embodiment by this invention. It is a figure which shows the structure of the movement amount sensor in 2nd Embodiment by this invention. The installation method which installs the sensor by this invention in a mountain is shown.

  FIG. 1 is a conceptual diagram for registering the installation location of a sensor device according to the present invention.

  As an example of an embodiment of the present invention, consider a case where a large number of fire sensors for sensing (sense) a wildfire are installed in a forest. Reference numeral 1 denotes a sensor communication device. Here, the fire sensor has a wireless communication function.

  The installation location registration device 2 supplies the unique ID code from the installation location registration device 2 to the sensor communication device at the place where the sensor communication device 1 is installed in the forest, and the supplied ID code and the GPS information of the installation location. Is stored as “installation information”. If 100 sensor communication devices 1 are installed in the forest, 100 “installation information” are stored in the installation location registration device 2 when the installation operation is completed. The stored 100 pieces of “installation information” are communicated to the integrated management station 3, and the integrated management station 3 “installation information” including the ID codes and GPS information of the sensor communication devices 1 installed in all the mountains. Is managing.

  FIG. 2 is a conceptual diagram of a system in which when the sensor communication device 1 detects a fire, the state is transmitted to the wireless relay station 4, and the wireless relay station 4 transfers this to the integrated management station 3. .

  The wireless system used in the present invention is the LPWA system, and as shown by its name (Low Power Wide Area), it consumes less power and can communicate wirelessly up to a distance of 20 kilometers. The wireless relay station 4 is an area with a radius of 20 kilometers. The information from the sensor communication device 1 can be received. Incidentally, if the sensor communication device 1 is installed every two kilometers, it communicates with 400 sensor communication devices 1. Depending on the size of the mountain, there may be cases where one wireless relay station 4 is installed in one mountain, or four or five. For communication between the radio relay station 4 and the integrated management station 3, a public communication network such as an Internet network, a telephone line network, and a mobile phone network is used.

  FIG. 3 shows the internal configuration of the sensor communication device 1. The sensor 11, abnormality determination circuit 12, LPWA wireless communication circuit 13, ID code memory 14, battery 15, clock 16, timer 17, self-diagnosis circuit 18, BT (Bluetooth) It consists of a radio circuit 19 and a power supply control circuit 20. A unique ID code is supplied to the sensor communication device 1 from the installation location registration device 2, and the code is stored in the ID code memory 14. The LPWA wireless communication circuit 13 includes an antenna (not shown).

  When the ID code is supplied from the installation location registration device 2, wireless communication is performed with the sensor communication device 1 using the BT wireless circuit 19. Although not shown, there may be a method of connecting the installation location registration device 2 and the sensor communication device 1 with a dedicated cable using a connector or a method of using infrared communication, but this method does not matter.

  The output of the sensor 11 is constantly monitored by the abnormality determination circuit 12. When an abnormality occurs, that is, when it is determined that a fire has occurred, the LPWA wireless communication circuit 13 is activated and stored in the ID code memory 14. Along with the ID code, communication information notifying the fire is transmitted to the radio relay station 4.

  The clock 16 and the timer 17 are used for monitoring the output of the sensor 11 at a constant period and confirming whether the sensor is operating normally. The normal operation is confirmed by the self-diagnosis circuit 18, but operation parameter change control such as sensor sensitivity of the sensor 11 is also performed by the self-diagnosis circuit 18. The self-diagnosis result arrives at the integrated management station 3 via the wireless relay station 4, but the integrated management station 3 looks at the result information to determine the necessity of changing the sensor sensitivity, etc. I do. In the case of a fire sensor, the ambient temperature differs greatly between summer and winter, so a sensitivity change setting will be necessary.

  FIG. 4 shows an internal configuration of the installation location registration device 2, and includes a registration button 21, an ID code generator 22, an installation management circuit 23, a GPS detector 24, a communication circuit 25, a BT (Bluetooth) radio circuit 19, and the like. Become. In the installation management circuit 23, ID codes for the number of sensor communication devices 1 to be installed, which are given from the integrated management station 3 before the start of installation work, are newly stored via the communication circuit 25.

  Taking the work of installing a fire sensor in the forest as an example, after installing the sensor communication device 1 at the fire sensor installation point, when the registration button 21 of the installation location registration device 2 is pressed, the setting management circuit 23 The ID code is loaded into the ID code generator 22. This ID code is transferred / supplied from the BT radio circuit 19 to the sensor communication device 1. At the same time, the installation management circuit 23 obtains information of the GPS detector 24 and registers and manages it as “installation information” together with the supplied ID code. Such work is performed at all installation points, and after the work is completed, “installation information” for the number of installation locations is stored in the installation management circuit 23. All the “installation information” is delivered to the integrated management station 3 via the communication circuit 25. The installation location registration device 2 in FIG. 4 can be replaced with a smartphone.

  Most modern smartphones are equipped with a GPS detector 24, a communication circuit 25, and a BT wireless circuit 19 in the internal configuration of FIG. 4, and a registration button 21, an installation management circuit 23, and an ID code generator 22. The function can be realized by application software installed in the smartphone.

  The BT wireless circuit 19 in the sensor communication device 1 of FIG. 3 is a circuit that is necessary only when the sensor communication device 1 is installed, and is unnecessary after the installation. Therefore, a method of eliminating this circuit from the sensor communication device 1 is also possible.

  In order to assign an ID code without using the BT wireless circuit 19, the LPWA wireless communication circuit 13 built in the sensor communication device 1 is used. However, current smartphones are equipped with a BT wireless communication function as standard. However, it does not have a built-in LPWA wireless communication function. Therefore, as shown in FIG. 5, the smartphone buffer 30 is placed between the smartphone 26 and the sensor communication device 1 as an installation tool, and the smartphone buffer 30 receives and receives the ID code from the smartphone by the BT wireless circuit 19. The ID code is stored in the ID code memory 14 by sending the ID code to the LPWA wireless communication circuit 13 of the sensor communication device 1 via the LPWA wireless communication circuit 13.

  The LPWA wireless communication circuit 13 does not have a reception waiting state as will be described later. At the time of installation, the ID code from the installation registration device 2 is received. At that time, although not shown, by pressing a reset switch (hidden switch type) provided in the sensor communication device 1, a predetermined time of 10 minutes, Wait for reception.

  FIG. 6 shows a communication sequence and signal format among the sensor communication device 1, the wireless relay station 4, and the central management station 3. The transmission signals shown in FIG. 6 (a) will be described later in Table 2, but there are mainly three types of "abnormality notification", "self-diagnosis result", and "inquiry". There are roughly three types of reply signals: “parameter change request”, “no change request”, and “reception OK”.

  In the sensor communication device 1, self-diagnosis is performed at regular intervals such as once a day or once a week. In the case of a fire sensor, the sensor includes a temperature detection unit, a smoke detection unit, The detection unit has operation parameters such as sensitivity setting. The self-diagnosis circuit 18 (FIG. 3) checks whether or not the operation parameters are operating normally. A series of check procedures is set in the self-diagnosis circuit 18. The result of the self-diagnosis is sent as “diagnosis result” information from the sensor communication device 1 to the overall management station 3 via the wireless relay station 4 as shown in FIG. As the communication signal, “result information” such as PM1 and PM1D is inserted together with “signal type”, “ID code”, and “determination” as shown in FIG. “ID code” is a code peculiar to the sensor communication device 1 described above, and “determination” is a determination of a diagnosis result, which is not normal, abnormal, or abnormal, but has a determination of caution. Is a signal that means

  “Result information” includes, for example, when the output of the temperature detection unit of operation parameter 1 is A and the output of the smoke detection unit of operation parameter 2 is B, the result information includes a signal PM1 representing the parameter and sensor output data. Result information for each individual parameter is transmitted with two pieces of information of PM1D. In the above example, PM1 is temperature detection, and PM1D is temperature detection data. When the central management station 3 sees the data for each parameter and determines that it is better to change the setting of the operation parameter, it sends a “parameter change” signal. The signal format is the same as the “diagnosis result” signal, as shown in FIG. For example, when the parameter change information is “increase the sensitivity of the temperature detection unit by two ranks”, a signal such as “temperature detection unit sensitivity” is input in a location corresponding to PM1, and a signal “increase 2 ranks” is input in a location corresponding to PM1D . Wild forests are sometimes burned in the forest, but the fire sensor will determine that a wildfire has occurred, so sensitivity adjustment will be necessary. Even if the sensitivity adjustment cannot be performed and the communication from the sensor communication device 1 to the integrated management station 3 is notified of the occurrence of a wildfire, if the integrated management station 3 has the field burning information separately, it cannot be determined that there is a wildfire. .

  In order to save power of the sensor communication device 1, as a wireless communication method, when communicating as shown in FIG. 6 (a), all communication is started and transmitted from the sensor communication device 1, and waiting for reception to the sensor communication device 1. There is no state. The fact that there is no waiting state for reception eliminates the need to constantly supply power to the LPWA wireless communication circuit 13, and power supply to the LPWA wireless communication circuit 13 is only required during transmission.

  As a further power saving method, the power supply to the sensor 11 and the abnormality determination circuit 12 is not always performed, but at a constant short period such as 1 minute every 5 minutes. Since it is unclear when a fire or abnormal condition will occur, continuous monitoring is preferable, but if it can be determined that monitoring can be done every few minutes, this method can be used.

  Further, even if the self-diagnosis cycle is performed once every week for a while after the sensor is installed, the integrated management station 3 observes the result of the self-diagnosis at a certain time (for example, 1 after installation) It is possible to determine that the frequency may be once every three months from the year), taking into account the characteristics and specifications of the sensor. In this case, the sensor communication device 1 changes the setting of the timer 17 by transmitting a timer value change request to the timer 17 from the integrated management station 3 together with the timer value.

  As described above, the self-diagnosis can be set once a year, but the integrated management station 3 wants to give the sensor communication device 1 some instruction such as parameter change when the above-mentioned open burning is performed. Since there is time, the sensor communication device 1 sends an “inquiry” signal to the integrated management station 3 once a day. The integrated management station 3 can send a “parameter change request” signal as a response signal to the “inquiry” signal, and the integrated management station 3 can give an instruction. When the integrated management station 3 does not give an instruction, it notifies the fact. How to tell will be described later.

  Here, the timing at which power is supplied to each circuit in the sensor communication device 1 is shown in Table 1. This supply control is performed by the power supply control circuit 20 (FIG. 3). In FIG. 3, power is always supplied to the clock 16 and the timer 17.

  If the management target of the integrated management station 3 is about one mountain, the wireless relay station 4 can substitute the functions of the integrated management station 3. In this case, the wireless relay station 4 that has received an abnormal report such as the occurrence of a wildfire will notify the manager of the mountain.

  In the above example, forest fire monitoring is taken up, but for monitoring landslides, a three-dimensional acceleration sensor that can detect the movement of the installation position including the vertical direction is used.

  The wireless relay station 4 or the integrated management station 3 receives an abnormality report from the landslide sensor and can know at which point in the mountain the landslide has occurred based on the GPS information.

  In this case, the abnormality determination circuit 12 determines whether the earthquake is a small earthquake, a large earthquake, or a landslide by looking at the sensor output of the three-dimensional acceleration sensor. If the output is equivalent to a large earthquake or landslide, the abnormality is determined to be abnormal. The sensor output value is sent to the wireless relay station 4 together with the “abnormality notification” signal to notify the integrated management station 3. The sensitivity adjustment of the acceleration sensor enables, for example, an earthquake having a seismic intensity of 4 or more to be determined as a large earthquake.

  If an “abnormality notification” signal does not come from the sensor communication device 1 at that point when an earthquake of seismic intensity 4 occurs, the “parameter change” signal will be sent for sensitivity adjustment (re-setting) at the next self-diagnosis. send.

  By mounting the fire sensor and the acceleration sensor on the sensor communication device 1, both fire and landslide can be detected. In reality, it seems that there are not many examples where the area where a fire is easily placed and the area where a landslide is easily placed in the mountain match, so a fire sensor is installed in a certain area, a landslide sensor is installed in a certain area, etc. The method may be realistic.

  Next, a second embodiment of the present invention will be described.

  The second embodiment is an application example to an animal sensor that detects an animal such as a bear in a mountain forest. Recently, due to abnormal weather, there is a lack of plants (food) for bears to inhabit in the forest, and there are many news that bears and monkeys have entered the area of people's homes. In the present invention, animal sensors such as a bear, a wild boar, and a monkey are installed in a boundary region between an original region where a bear or the like inhabits and a region of a house.

  FIG. 7 is a conceptual diagram of an animal sensor, where 1 is a sensor communication device, 5 is a moving piece inserted into the sensor communication device, 6 is a rope, and 7 is a fixed shaft. For the fixed shaft 7, a marker pile itself or a tree in a forest is used.

  As shown in FIG. 7, the sensor communication device 1 and the fixed shaft 7 are connected by a rope 6, and a moving piece 5 is provided at the end of the rope 6 on the sensor communication device 1 side. By detecting the movement of 5, it is determined that there is an animal straddling or hooked on the rope 6. The moving piece 5 moves due to the strong wind of the rope 6 or a person hooked, but the rope 6 has a slack so that it is not judged as a movement of the animal, and the amount of movement that the person hooks or moves by the strong wind. And the difference in the amount of movement when the animal is hooked can be detected. The length of the rope 6 is as long as 10 meters, and the rope 6, the fixed shaft 7, and the sensor communication device 1 are set as one set, and a considerable number of sets are installed at a place where an animal seems to pass in the mountain.

  In the second embodiment, the timepiece 16, the timer 17, and the self-diagnosis circuit 18 of FIG. 3 are unnecessary. The sensor in FIG. 3 is a movement amount sensor. FIG. 8 schematically shows the internal structure of the movement amount sensor. The movement amount sensor corresponds to the sensor 11 in FIG.

  Three light sources L1, L2, and L3 are attached to the light source mounting member 9 along the long side of the moving piece 5, and the three light receiving elements S1, S2, and S3 are attached to the light receiving element mounting member 10 at positions facing each light source. It has been. A magnet 8 is sandwiched between the attachment members 9 and 10, and the moving piece 5 at the end of the rope 6 is always attracted and fixed to the magnet 8. Although an LED is used as the light source, a well-known general method is used for a power supply method to the light source and an output determination circuit of the light receiving element, and thus illustration and description thereof are omitted.

  When a person hooks the rope 6, the person will notice that it has been hooked, so the rope will be restored within the range of the slack of the rope 6, so even if the moving piece 5 does not move at all, That is, the light receiving element S1 detects the light from the light source L1. In a strong wind such as a typhoon, the light receiving element S2 feels the light source L2. When an animal such as a bear, a wild boar, or a monkey hooks the rope 6, the animal will pull the rope 6 without care, so the moving piece 5 comes out and the light receiving element S3 detects the light source L3. With such a structure, it is determined whether the movement of a person, the movement by a strong wind, or the movement by passage of an animal according to the movement amount. This determination is performed by the abnormality determination circuit 12 in FIG. 3 while checking whether the outputs of the light receiving elements S1, S2, and S3 are off or on. If it is determined that there is an abnormality due to the passage of an animal, the LPWA wireless communication circuit 13 is activated to inform the wireless relay station 4 of that fact.

  In addition to the method of detecting the passage of the animal by the amount of movement of the rope 6 as in the second embodiment described above, in the first embodiment, a monitoring camera is installed instead of a fire sensor or a landslide sensor. There is also a method of judging the passage of a bear or a wild boar by image analysis inside the surveillance camera and notifying an abnormality such as “a bear has passed” or “a wild boar has passed”.

  As described above, in the present invention, the appearance of animals such as fires, landslides and bears in mountain forests can be detected. The detection is reported to the radio relay station 4 in the signal format of FIG. In addition, the fire sensor and the acceleration sensor periodically perform self-diagnosis, transmit the diagnosis result, and can change the operation parameter setting of the sensor as necessary. Table 2 summarizes the signal formats of these communication signals.

  Table 2 shows information that falls into four information fields, signal type, determination, PM, and PMD. However, “None” means that there is no need to insert information into the information field. This means that NULL (ALL0) is entered as data. “None” indicates that there is no information field.

  Since “ID code” is inserted into all signals, the description of “ID code” is omitted in Table 2.

  “Reception OK” in Table 2 is a signal to be returned when “abnormality notification” is received.

  FIG. 9 shows a method of mounting the sensor communication device 1 in a mountain in the first embodiment and the second embodiment of the present invention. In order to install an electronic circuit such as the sensor communication device 1 in a mountain, a method of embedding a pile on which the electronic circuit is mounted in the ground of the mountain is advantageous because it can be installed at any point in the mountain.

  Today, tag piles are sold at mass retailers at a low price, but the tag piles are rod-shaped and consist of upper and lower parts, the upper part is a rectangular parallelepiped, the lower part is an inverted square weight, and the upper head While hitting the part with a hammer etc., it is inserted into the ground from the tip of the inverted square weight, and the pile driving work is performed. FIG. 9 (a) shows the pile as viewed from the side, and shows a state where there are an upper part 31 and a lower part 32, and the lower part 32 is buried in the ground. The physical configuration of the sensor communication device 1 is a printed circuit board and a battery box on which a circuit other than the battery shown in FIG. 3 is mounted. The printed circuit board and the battery box are housed in a housing 35. 9C, the sensor communication device 1 is installed by attaching the housing 35 and covering the housing cover 33 on the upper portion 31 of the marker pile. Placing a housing with an electronic circuit on the marker pile and covering the housing cover 33 with a hammer may cause damage to the electronic circuit such as the sensor communication device 1, so the mounting order (1) The head of the sign pile is hit with a hammer and the lower part 32 is buried in the ground. (2) The housing 35 containing the sensor communication device 1 is placed and fixed on the head of the sign pile. 3) The order is to cover and fix the housing cover 33.

  As shown in FIG. 9 (b), the inside of the housing cover 33 has a serrated tooth-shaped joint, and this joint strongly fits into a part of the upper portion 31 of the marker pile, thereby making the housing cover 33 is stably fixed to the marker pile, and it is difficult to remove the housing cover 33. Accordingly, it is possible to prevent the casing cover 33 from being removed by someone and the sensor communication device 1 from being stolen. In the example of FIG. 9 (b), a sawtooth-shaped joint structure is shown for fitting the housing cover 33 and the marker pile, but a method of applying an adhesive may be used. In short, it should be fixed firmly and difficult to be removed by a third party. In Embodiment 2 described above, the moving piece 5 at the other end of the rope moves so that it can be detached from the housing, such as when the bear hooks the rope, and so that the detached moving piece 5 can be remounted. Although not shown, a notch hole corresponding to the shape of the piece 5 is provided in the housing cover.

  As described above, in the present invention, various abnormalities in the mountains can be detected and prompt notifications can be made, and installation work, using commercially available sign piles, and removal of malicious intentions by third parties can also be protected. Depending on the battery capacity, it can be operated for 5 years or more without battery replacement.

  In addition, the present invention can be applied to LPWA in a system in which the detection target of the sensor, the detection area, the use of a commercial power source is easy, or the battery replacement is easy and the necessity of paying attention to the battery life of the sensor communication device 1 is not high. There is no need to stick to the wireless communication system, and it becomes possible to use other private wireless systems such as WiFi or wireless systems of public mobile phones.

  The present invention detects anomalies in the mountains such as forest fires, landslides, and bear appearances, and uses a self-operated LPWA wireless system in the mountains where radio waves are difficult to reach in public wireless communication networks, which also reduces the sensing device's low level. Power consumption can be reduced, and it can withstand long-term use at the 5-year level without battery replacement. Industrial applicability will be immeasurable.

1. 1. Sensor communication device 2. Installation location registration device Integrated management station 4. 4. Wireless relay station Moving piece 6. Rope 7. Fixed shaft 8. Magnet 9. Light source mounting member 10. 10. Light receiving element mounting member Sensor 12. Abnormality determination circuit 13. LPWA wireless communication circuit 14. ID code memory 15. Battery 16. Clock 17. Timer 18. Self-diagnosis circuit 19. BT radio circuit 20. Power supply control circuit 21. Registration button 22. ID code generator 23. Installation management circuit 24. GPS detector 25. Communication circuit 26. Smartphone 30. Smartphone buffer 31. Upper part of sign pile 32. Lower sign pile 33. Case cover 34, serrated joint 35. Case L1, L2, L3 Light source S1, S2, S3 Light receiving element

Claims (3)

Installation location registration device equipped with GPS detector, ID code supply circuit, wireless communication circuit,
A sensor communication device including a sensor, an ID code storage circuit, a battery, a timer, and a wireless communication circuit;
With the Integrated Management Bureau
Consisting of
When the sensor communication device is installed, an ID code is supplied from the installation location registration device to the sensor communication device, and the ID code and GPS location information of the installation location are managed by the installation location registration device. The timing of power supply from the battery to the wireless communication circuit of the sensor communication device is controlled by the timer, and the integrated management is performed by the wireless communication circuit of the sensor communication device via the wireless communication means together with the ID code. A sensor installation registration management system characterized by communicating with a station. 2. The sensor installation according to claim 1, wherein the sensor communication device has a self-diagnosis function for diagnosing the operation of the sensor, and the self-diagnosis cycle and the operation sensitivity of the sensor are controlled by the integrated management station. Registration management method. A moving piece connected to one end of the rope is detachably mounted in the sensor communication device, and the other end of the rope is coupled to a fixed shaft at a distance corresponding to the rope length. Is provided with a movement amount sensor for detecting the movement amount of the moving piece pulled by the rope in a plurality of stages, and an abnormality occurring in the rope is determined based on the movement amount detected by the movement amount sensor. The sensor registration registration management system according to claim 1, wherein:

Images