JP2020017182A - Sensor information acquisition device - Google Patents

Abstract

To provide a sensor information acquisition device capable of suppressing power consumption of a battery by the device itself.SOLUTION: A sensor information acquisition device of an embodiment comprises: a detection unit; a sensor amplifier which is supplied with a power supply voltage and outputs detection data detected by the detection unit as sensor information; a control unit which acquires sensor information output from the sensor amplifier, and has a deep sleep mode for canceling a transmission of an activation signal even when a predetermined time has elapsed; a power supply unit which supplies a power supply voltage to the sensor amplifier; a reed switch which is turned on and off by contact and separation of a magnet; and a battery which supplies a battery voltage to the control unit, the power supply unit, and the reed switch, wherein the control unit continues the deep sleep mode on the basis of a first on/off operation of the reed switch.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a sensor information collecting device.

  2. Description of the Related Art Conventionally, there is a system that aggregates the presence or absence of a vehicle detected by a sensor in a server via a wireless network and provides a user with congestion information in a parking lot. Further, in this case, there is a technology for detecting the presence or absence of a vehicle using a magnetic sensor embedded in a parking area (for example, see Patent Document 1).

Japanese Patent No. 4308318

  For example, sensor information collection devices are often buried in outdoor parking areas, and it is necessary to seal the sensor information collection device such as potting in order to ensure dustproof and waterproof properties of the sensor. Since the sensor information collecting device described above has a sealed structure, power consumption of the battery is started immediately after being manufactured in a factory or the like. Also, for example, there is a demand for installing sensors not only in parking areas but also in street lights provided in parking lots and collecting environmental data such as temperature and humidity from the sensors. If this cannot be done, there is a demand to update the control program for controlling the sensor and operate the system so that the system can be updated.

  However, in the above-described conventional technology, for example, since the sensor information collection device is embedded in an outdoor parking area, it is not possible to replace the battery after embedding the sensor information collection device or update the control program from the outside. Was.

  The present invention has been made in view of the above, and an object of the present invention is to provide a sensor information collection device capable of suppressing power consumption of a battery by itself.

  In order to solve the above-described problem and achieve the object, a sensor information collection device according to one embodiment of the present invention includes a detection unit, a power supply voltage is supplied, and detection data detected by the detection unit is used as sensor information. A sensor amplifier for outputting, a control unit having a deep sleep mode for collecting the sensor information output from the sensor amplifier and canceling transmission of a start signal even when a predetermined time has elapsed; and A power supply unit that supplies the power supply voltage, a reed switch that is turned on and off by contact and separation of a magnet, and a battery that supplies a battery voltage to the control unit, the power supply unit, and the reed switch, and the control unit includes: And continuing the deep sleep mode based on the first on / off operation of the reed switch.

  According to one embodiment of the present invention, a sensor information collection device capable of suppressing power consumption of a battery by itself can be provided.

FIG. 1 is a schematic explanatory diagram of an information collection system including a sensor information collection device according to the embodiment. FIG. 2 is a perspective view illustrating an installation example of the sensor information collection device according to the embodiment. FIG. 3 is a functional block diagram illustrating a configuration of the sensor information collection device according to the embodiment. FIG. 4A is an explanatory diagram of a first example of the on / off operation of the reed switch. FIG. 4B is an explanatory diagram of a second example of the on / off operation of the reed switch. FIG. 5 is a flowchart illustrating a processing procedure of deep sleep mode release control of the sensor information collection device according to the embodiment. FIG. 6 is a flowchart (part 1) illustrating an example of a processing procedure of program update control of the sensor information collection device according to the embodiment. FIG. 7 is a flowchart (part 2) illustrating an example of a processing procedure of program update control of the sensor information collection device according to the embodiment. FIG. 8 is a flowchart (part 3) illustrating an example of a processing procedure of the program update control of the sensor information collection device according to the embodiment.

  Hereinafter, a sensor information collection device according to an embodiment will be described with reference to the drawings. It should be noted that the application of the sensor information collecting device is not limited by the embodiments described below. In addition, it is necessary to keep in mind that the drawings are schematic, and the dimensional relationship of each element, the ratio of each element, and the like may be different from reality. Even in the drawings, there may be cases where portions having different dimensional relationships and ratios are included.

<Overview of Information Collection System 1>
First, an overview of an information collection system 1 including a sensor information collection device 10 according to an embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a schematic explanatory diagram of an information collection system 1 including a sensor information collection device 10 according to the embodiment. FIG. 2 is a perspective view illustrating an installation example of the sensor information collection device 10 according to the embodiment.

  As shown in FIG. 1, the information collection system 1 includes a sensor information collection device 10 and a server 20. The information collection system 1 collects “sensor information” collected by the sensor information collection device 10 in the server 20 via a communication network and an Internet line. Further, the information collection system 1 provides the user with the “sensor information” collected in the server 20.

  The information collection system 1 is, for example, a system that provides a user with a congestion state in the parking lot 30 (see FIG. 2). In this case, the sensor information collection device 10 detects the presence or absence of the vehicle 32 in the parking area 31 (both refer to FIG. 2).

  The sensor information collection device 10 includes a communication unit 16, a storage unit 122, a control unit 12, and a detection unit 14. The sensor information collection device 10 transmits (outputs) the detection data (ie, sensor information) detected by the detection unit 14 to the control unit 12 and stores the transmitted detection data based on a command from the control unit 12. The information is stored in the storage unit 122 and transmitted from the communication unit 16 to the server 20 via the communication network and the Internet line. The configuration of the sensor information collection device 10 will be described later with reference to FIG.

  The server 20 includes a communication unit 21, a storage unit 22, and a control unit 23. The server 20 receives the detection data (sensor information) transmitted from the communication unit 16 of the sensor information collection device 10 by the communication unit 21, transmits the detection data received by the communication unit 21 to the control unit 23, and Based on the instruction, the transmitted detection data is stored in the storage unit 22 and transmitted from the communication unit 21 to the user.

  As shown in FIG. 2, the sensor information collection device 10 is embedded in each parking area 31 (for example, a concrete floor where the vehicle 32 stops) in a parking lot 30 that is a structure. The sensor information collection device 10 includes a magnetic sensor 14 (see FIG. 3) described later as a detection unit that detects the presence or absence of the vehicle 32 in the parking area 31 by magnetic fluctuation.

<Configuration of Sensor Information Collection Device 10>
Next, the configuration of the sensor information collection device 10 according to the embodiment will be further described with reference to FIG. FIG. 3 is a functional block diagram illustrating a configuration of the sensor information collection device 10 according to the embodiment. In FIG. 3, signals are indicated by solid lines, and voltages are indicated by broken lines.

  Considering that the sensor information collecting device 10 is buried in a structure, the sensor information collecting device 10 is not supplied with a power supply voltage from the outside but is driven by a battery. For this reason, the sensor information collecting device 10 includes a battery 11 as shown in FIG. The battery 11 is, for example, a primary battery and serves as a voltage source of the sensor information collecting device 10. Here, the sensor information collecting device 10 uses the battery 11 as a voltage source, operates for a long time (for example, 10 years) without maintenance, and collects detection data (sensor information) detected by the magnetic sensor 14.

  In a steady state, the sensor information collection device 10 puts a control unit 12 described later in a sleep state in order to suppress power consumption of the battery 11. In this case, the other components (the power supply unit 13, the magnetic sensor 14, the sensor amplifier 15, and the wireless module 16, which will be described later) are in an operation stop state. The sensor information collecting device 10 starts up and collects sensor information when a preset predetermined time elapses (when an interrupt signal is generated by a real-time clock).

  The sensor information collecting device 10 is embedded in a parking area 31 (see FIG. 2). For this reason, the sensor information collecting device 10 is configured with a hermetically sealed structure by potting or the like in order to secure dustproof and waterproof properties. As described above, the sensor information collection device 10 can be installed in a place where there is no power infrastructure, and by suppressing the power consumption of the battery 11, the life of the battery 11 can be extended. It can be easily taken out wirelessly.

  As shown in FIG. 3, the sensor information collecting device 10 includes a battery 11, a control unit 12, a power supply unit 13, a magnetic sensor 14 as a detection unit, a sensor amplifier 15, and a wireless module 16 as a communication unit. , OR circuit 17, a first switch 18a, and a second switch 18b.

  The battery 11 is, for example, a primary battery as described above. Battery 11 supplies battery voltage V1 to control unit 12 in a steady state. The battery 11 supplies a power supply voltage V2 to each component (the control unit 12, the sensor amplifier 15, and the like) via the power supply unit 13 at the time of detection by the magnetic sensor 14.

  The control unit 12 includes a microcomputer 121 and a memory (“storage unit” in FIG. 1) 122. The control unit 12 is configured by, for example, an LSI (Large Sale Integration). Note that the control unit 12 may have a configuration in which the microcomputer 121 includes the memory 122. As described above, the control unit 12 is in the sleep state (sleep mode) in the steady state, and when the preset predetermined time has elapsed, that is, when the interrupt signal of the real-time clock has been generated, the activation signal S Is transmitted to the power supply unit 13 to activate the power supply unit 13. For example, the control unit 12 may include an acceleration sensor that detects acceleration equal to or higher than a predetermined threshold with low power consumption, and the control unit 12 may have a wake-up mode that transmits a start signal based on the detection of the acceleration sensor.

  The control unit 12 reads sensor information from the sensor amplifier 15 and stores the read sensor information in the memory 122 when a preset predetermined time has elapsed (an interrupt signal of a real-time clock has been generated). The control unit 12 transmits the sensor information stored in the memory 122 via the wireless module 16 after activating the wireless module 16 via the power supply unit 13.

  The power supply unit 13 is a DC / DC converter. The power supply unit 13 is connected to the battery 11. The power supply unit 13 is activated by the activation signal S from the control unit 12, supplies the power supply voltage V2 to the sensor amplifier 15 via the first switch 18a, and supplies the power supply voltage V2 to the wireless module 16 via the second switch 18b. Also supplies the power supply voltage V2.

  The battery voltage V1 of the battery 11 and the power supply voltage V2 output by the power supply unit 13 are supplied to the control unit 12 via the OR circuit 17. That is, the battery voltage V1 of the battery 11 is supplied to the control unit 12 until the power supply unit 13 is activated by the activation signal S, and when the power supply unit 13 is activated, the output voltage of the sensor amplifier 15 and the voltage level are adjusted. , The power supply voltage V2 is supplied to the control unit 12.

  The magnetic sensor 14 detects magnetism as a measurement target and generates detection data. The magnetic sensor 14 is the “detection unit” in FIG. 1, and detects the presence or absence of the vehicle 32 (both refer to FIG. 2) in the parking area 31 by the magnetic fluctuation as described above. The magnetic sensor 14 detects the strength of the magnetism and converts the detected magnetism into an electric signal.

  When the power supply voltage V2 is supplied via the first switch 18a, the sensor amplifier 15 amplifies the detection value of the magnetic sensor 14 and outputs detection data (sensor information) to the control unit 12.

  Upon receiving the operation command signal C1 from the control unit 12, the first switch 18a supplies the power supply voltage V2 of the power supply unit 13 to the sensor amplifier 15.

  The wireless module 16 is a “communication unit” in FIG. 1, and transmits detection data (sensor information), address information, time information, and the like stored in the memory 122 based on a command (signal) from the control unit 12 to an external server. 20 (see FIG. 1).

  When receiving the operation command signal C2 from the control unit 12, the second switch 18b supplies the power supply voltage V2 of the power supply unit 13 to the wireless module 16.

  Here, the control unit 12 has a program update mode for updating the control program when adding or changing the type of sensor information. Further, the control unit 12 has a deep sleep mode for canceling the transmission of the activation signal S even when a predetermined time has elapsed. Therefore, the sensor information collecting apparatus 10 includes a mode switching unit 19 for switching the mode in the control unit 12.

  As shown in FIG. 3, the mode switching means 19 includes a reed switch 191 and a magnet 192. In the reed switch 191, for example, two ferromagnetic leads are sealed in a glass tube facing each other with a predetermined contact interval. The glass tube is filled with nitrogen gas in order to prevent activation of the contact.

  For example, when a magnetic field is applied in the axial direction of the reed by bringing the magnet 192 close to the reed switch 191, the reed is magnetized, and the free ends of the reeds come into contact with each other to close (turn on) the circuit. ). For example, when the magnetic field is removed by separating the magnet 192, the reed switch 191 returns to its free end due to the elasticity of the reed, and opens (turns off) the circuit. That is, the reed switch 191 is turned on and off by the contact and separation of the magnet 192.

  The magnet 192 is, for example, an electromagnet, and is provided on an external device that is a dedicated jig for bringing the reed switch 191 into and out of contact. Note that the magnet 192 may be a permanent magnet. In this case, the magnet 192 may be moved toward and away from the reed switch 191 manually, for example.

  As illustrated in FIG. 3, the control unit 12 switches the mode based on the on / off operation of the reed switch 191. In this case, the on / off operation of the reed switch 191 does not include simple on / off repetition to prevent malfunction due to vibration or the like. That is, the on / off operation of the reed switch 191 requires such a complexity as to avoid a malfunction. The ON / OFF operation of the reed switch 191 includes the ON / OFF time and the number of times when the reed switch 191 is one, and the ON / OFF order, the time and the number of times when the number of the reed switches 191 is two or more.

  Here, the on / off operation of the reed switch 191 will be described with reference to FIGS. 4A and 4B. FIG. 4A is an explanatory diagram of a first example of the on / off pattern of the reed switch 191. FIG. 4B is an explanatory diagram of a second example of the on / off pattern of the reed switch 191.

  As shown in FIG. 4A, the first example of the on / off pattern of the reed switch 191 is based on a predetermined protocol that causes one reed switch 191 to generate a magnetic pulse P2 different from the magnetic pulse P1 by a simple on / off operation. It is an on-off pattern. In this on / off pattern, a magnetic pulse P2 that does not normally occur is generated. In this case, the reed switch 191 is turned on and off by the drive of the magnet 192 by the external device.

  Returning to FIG. 3, when the on / off operation of the reed switch 191 is the first example of the on / off pattern based on the predetermined protocol, the control unit 12 determines that the switching signal is C3. Upon receiving the switching signal C3, the control unit 12 switches from the sleep mode to the program update mode, for example.

  As shown in FIG. 4B, in the second example of the on / off pattern of the reed switch 191, for example, two or more reed switches 191 arranged at a predetermined distance (for example, about 4 cm) from each other are turned on in a predetermined order. It is a pattern. FIG. 4B shows a case where there are three reed switches 191 (reed switches 191a to 191c). In the case of the three reed switches 191a to 191c, as shown by arrows in the drawing, for example, after the reed switch 191a, the reed switch 191b, and the reed switch 191c are turned on in this order, the reed switches 191c and 191c are turned around in the opposite direction. An on / off pattern such as turning on in the order of 191b and reed switch 191a.

  In this case, as in the first example described above, the reed switches 191a to 191c may be turned on and off by driving the magnet 192 into and out of contact with an external device. In addition, for example, the reed switches 191a to 191c may be turned on and off in a predetermined pattern by manually moving the magnet 192. The case where the number of the reed switches 191 is four or more is the same as the case where the number of the reed switches 191 is three, so that a more complicated pattern can be set.

  Further, complicated pattern setting may be performed by performing on / off operation of two or more reed switches 191 based on a predetermined protocol using two or more magnets 192. This will be described with reference to the example illustrated in FIG. 4B. For example, when on / off operations are performed on each of the reed switches 191a to 191c using two magnets 192, one magnet 192 is continued to the reed switch 191a. The pattern setting is such that the other magnet 192 is turned on and off by bringing the other magnet 192 into and out of contact with the reed switch 191b in a state where the magnets are brought close to each other.

  Returning to FIG. 3, the control unit 12 determines that the switching signal is C3 when the ON / OFF pattern of the second example is such that two or more (three) reed switches 191a to 191c are turned on in a predetermined order. . Upon receiving the switching signal C3, the control unit 12 switches from the sleep mode to the program update mode, for example.

  For example, an LED and an LED driver are provided in an external device provided with the magnet 192, and when the control unit 12 switches to the program update mode, a signal is transmitted from the control unit 12 to drive the LED driver. May be configured to light the LED. Thereby, it can be notified that the mode switching has been performed.

<Processing procedure of each control of sensor information collection device 10>
Next, a processing procedure of each control of the sensor information collection device 10 according to the embodiment will be described with reference to FIGS. FIG. 5 is a flowchart illustrating a processing procedure of the deep sleep mode release control of the sensor information collection device 10 according to the embodiment. 6 to 8 are flowcharts illustrating an example of a processing procedure of program update control of the sensor information collection device according to the embodiment. In the description of the processing procedure of the sensor information collection device 10, FIG. 3 is appropriately referred to in addition to FIGS.

  In the sensor information collecting apparatus 10, the microcomputer 121 of the control unit 12 cancels the transmission of the activation signal S even when the predetermined time has elapsed, that is, does not transmit the activation signal S to the power supply unit 13, Mode. Since the sensor information collection device 10 has a sealed structure, power consumption of the battery 11 starts immediately after being manufactured in a factory or the like. For this reason, in the deep sleep mode, when the supply of the battery voltage from the battery 11 is started, the deep sleep mode is continued to prevent the battery 11 from starting even after a predetermined time elapses. It is possible to suppress power consumption when the device 10 is not installed (buried) (for example, in a stock state).

  The microcomputer 121 of the control unit 12 determines whether the on / off operation of the reed switch 191 is the predetermined on / off pattern as described above, and determines whether the predetermined on / off pattern, that is, the reed switch 191 is not the predetermined on / off operation. To continue the deep sleep mode.

  As shown in FIG. 5, the microcomputer 121 of the control unit 12 first performs a system reset as a steady state setting state (initial state) (step S101). In the system reset, the operation mode is set to a sleep state (sleep mode) as a normal state of the sensor information collecting apparatus 10, and the other components, that is, the power supply unit 13, the magnetic sensor 14, the sensor amplifier 15, the wireless module 16 Is in an operation stop state.

  Next, the microcomputer 121 executes the deep sleep mode (Step S102). When the on / off operation of the reed switch 191 is performed, the microcomputer 121 determines whether the reed switch 191 is in a predetermined first on / off operation (predetermined on / off pattern) (step S103).

  When the reed switch 191 is performing a predetermined first on / off operation (step S103: Yes), the microcomputer 121 cancels the deep sleep mode. That is, the mode is switched from the deep sleep mode to the normal mode (sleep mode), and the operation is started in the normal mode (step S104). The “normal mode” is, for example, a program update mode. The program update mode, which is the normal mode, will be described later with reference to FIGS.

  When the reed switch 191 is not performing the predetermined on / off operation (step S103: No), the microcomputer 121 continues the deep sleep mode.

  As described above, according to the sensor information collection device 10 according to the above-described embodiment, the deep sleep mode can be continued when the device 11 has the deep sleep mode that suppresses the power consumption of the battery 11, so that the sensor information collection device 10 is installed ( It is possible to suppress the power consumption of the battery 11 that is not embedded. Thereby, the power consumption of the battery 11 can be suppressed by the sensor information collecting device 10 alone.

  Further, by separately setting the on / off operation (on / off pattern) of the reed switch for shifting to the deep sleep mode, it is possible to shift to the deep sleep mode again after the installation (embedment) of the sensor information collecting device 10, and the battery 11 Power consumption can be further suppressed.

  Next, a processing procedure when switching from the sleep mode to the program update mode will be described with reference to FIGS. As shown in FIG. 6, when using the sensor information collection device 10, first, the microcomputer 121 of the control unit 12 executes a system reset as a setting state (initial state) in a steady state (step S201). In the system reset, as described above, the operation mode is set to the sleep state (sleep mode) as a normal state of the sensor information collecting apparatus 10, and the other components, that is, the power supply unit 13, the magnetic sensor 14, the sensor amplifier 15, the wireless module 16 is in the operation stop state.

  Next, the microcomputer 121 determines whether or not the reed switch 191 is in a predetermined second on / off operation (predetermined on / off pattern) (Step S202). When the reed switch 191 is in the second on / off operation (step S202: Yes), the microcomputer 121 changes the operation mode as shown in FIG. 7 (step S221). That is, the mode is switched to the program update mode. In step S202, the predetermined second on / off operation of the reed switch 191 is preferably different from the predetermined first on / off operation in step S103, but may be the same.

  Next, the microcomputer 121 determines whether rewriting (updating) of the control program, such as addition or change of the type of sensor information, is completed (step S222). When rewriting the control program is completed (step S222: Yes), the microcomputer 121 returns the operation mode to the original mode (step S223), that is, switches to the sleep mode, and as shown in FIG. Return before processing. For example, in the process of step S222, the microcomputer 121 may activate the wireless module 16, receive the update program from the server 20 via the wireless module 16, and rewrite the control program. If rewriting (updating) of the control program is not completed in the process of step S222 (step S222: No), the microcomputer 121 repeats this process until it is completed.

  Returning to FIG. 6, when the reed switch 191 is not in the predetermined second on / off operation (Step S202: No), the microcomputer 121 determines whether or not a preset predetermined time has elapsed (Step S203). In this case, the control unit 12 can determine whether or not a predetermined time has elapsed, for example, based on whether or not an interrupt signal of a real-time clock built in the microcomputer 121 has been received.

  Next, when the predetermined time has elapsed (Step S203: Yes), the microcomputer 121 activates the DC / DC converter that is the power supply unit 13 (Step S204). If the predetermined time has not elapsed in the processing of step S203 (step S203: No), the microcomputer 121 returns to the processing before step S202.

  When the power supply unit 13 is activated (step S204), the microcomputer 121 outputs the operation command signal C1 to turn on the first switch 18a (step S205), and supplies the power supply voltage V2 from the power supply unit 13 to the sensor amplifier 15. Then, the sensor amplifier 15 is started (step S206).

  Next, the microcomputer 121 determines whether or not a predetermined time (for example, 5 seconds: the time measured by the magnetic sensor 14) has elapsed since the activation of the sensor amplifier 15 (Step S207). When the predetermined time has elapsed (Step S207: Yes), the microcomputer 121 reads the detection data (sensor information) of the magnetic sensor 14 output from the sensor amplifier 15 and stores it in the memory 122 (Step S208). If the predetermined time has not elapsed in the processing of step S207 (step S207: No), the microcomputer 121 returns to the processing before this processing.

  When the detection data, that is, the sensor information is stored in the memory 122 (Step S208), the microcomputer 121 outputs the operation command signal C1 to turn off the first switch 18a (Step S209). The supply of the power supply voltage V2 is stopped to start and stop the sensor amplifier 15 (step S210).

  As shown in FIGS. 6 and 8, when the microcomputer 121 starts and stops the sensor amplifier 15 (step S210), it outputs an operation command signal C2 to turn on the second switch 18b as shown in FIG. 8 (step S210). In step S231, the power supply voltage V2 from the power supply unit 13 is supplied to the wireless module 16 to activate the wireless module 16 (step S232).

  Next, the microcomputer 121 transmits the detection data (sensor information) stored in the memory 122 via the wireless module 16 (Step S233). The microcomputer 121 determines whether the transmission of the detection data stored in the memory 122 has been completed (Step S234).

  When the transmission of the detection data is completed (Step S234: Yes), the microcomputer 121 outputs the operation command signal C2 to turn off the second switch 18b (Step S235). The supply of the power supply voltage V2 is stopped to start and stop the wireless module 16 (step S236). When the microcomputer 121 stops the activation of the wireless module 16 (step S236), the microcomputer 121 stops the activation of the power supply unit 13 (step S237), and returns to before the process of step S202 as shown in FIG.

  According to the sensor information collecting apparatus 10 according to the above-described embodiment, since the reed switch 191 operable in a non-contact manner by magnetic force is used to switch to the program update mode, after the sensor information collecting apparatus 10 is embedded in a structure, The control program can be updated.

  Further, since the on / off operation of the reed switch 191 is a predetermined on / off pattern that does not include a simple on / off operation, malfunction of the reed switch 191 can be prevented. In addition, since the control unit 12 has the sleep mode, even when the sensor information collecting device 10 has a sealed structure for dustproofing and waterproofing, it is possible to suppress power consumption of the battery 11 provided for eliminating wiring. it can.

  In the above-described embodiment, the sensor information collection device 10 can provide the user with the congestion state of the parking lot 30 by detecting the presence or absence of the vehicle 32 in the parking area 31 in the parking lot 30, The sensor information collecting apparatus 10 is not limited to this. For example, using a strain sensor or the like as the detecting unit 14 instead of a magnetic sensor, the sensor information collecting apparatus 10 is constantly installed on an infrastructure structure such as an iron bridge or a tunnel, and the structure is deteriorated. May be used for detecting the Further, the detection unit 14 is not limited to the magnetic sensor and the strain sensor.

  Further, the present invention is not limited by the above embodiments. The present invention includes a configuration in which the above-described components are appropriately combined. Further, further effects and modifications can be easily derived by those skilled in the art. Therefore, the broader aspects of the present invention are not limited to the above embodiments, and various modifications are possible.

  REFERENCE SIGNS LIST 1 information collection system, 10 sensor information collection device, 11 battery, 12 control unit, 13 power supply unit, 14 detection unit (magnetic sensor), 15 sensor amplifier, 16 communication unit (wireless module), 17 OR circuit, 18a first switch , 18b second switch, 19 mode switching means, 20 server, 21 communication unit, 22 storage unit, 23 control unit, 30 parking lot, 31 parking area, 32 vehicle, 121 microcomputer, 122 storage unit (memory), 191 read switch , 192 magnet, S start signal, V1 battery voltage, V2 power supply voltage, C operation command signal, P1, P2 magnetic pulse

Claims (8)

A detection unit;
A power supply voltage is supplied, and a sensor amplifier that outputs detection data detected by the detection unit as sensor information,
A control unit having a deep sleep mode for collecting the sensor information output from the sensor amplifier and canceling transmission of a start signal even when a predetermined time has elapsed,
A power supply unit for supplying the power supply voltage to the sensor amplifier;
A reed switch that is turned on and off by the contact and separation of a magnet;
A battery for supplying a battery voltage to the control unit, the power supply unit, and the reed switch;
With
The sensor information collection device, wherein the control unit continues the deep sleep mode based on a first on / off operation of the reed switch. The reed switch is one,
The control unit sets an on / off pattern based on a predetermined protocol for the first on / off operation of the reed switch, and the first on / off operation of the reed switch is not an on / off pattern based on the predetermined protocol. The sensor information collecting device according to claim 1, wherein the deep sleep mode is continued in the case. The reed switch is two or more,
2. The sensor information collection device according to claim 1, wherein the control unit sets a predetermined order for turning on each of the reed switches, and continues the deep sleep mode when the reed switches are not turned on in the predetermined order. 3. apparatus. The reed switch is two or more,
The control unit sets an on / off pattern based on a predetermined protocol for the first on / off operation of each of the reed switches, and sets the first on / off operation of each of the reed switches on / off based on the predetermined protocol. The sensor information collecting device according to claim 1, wherein the deep sleep mode is continued when the pattern is not a pattern.   The sensor according to claim 1, wherein the control unit has a program update mode for updating a control program, and switches to the program update mode based on a second on / off operation of the reed switch. Information collection device.   The sensor information collecting device according to claim 5, wherein the first on / off operation and the second on / off operation of the reed switch are different. The sensor amplifier is in an operation stop state at a normal time, is started when the power supply voltage is supplied from the power supply unit,
The control unit is in a sleep state at a normal time, the battery voltage is supplied from the battery, and transmits the start signal when a predetermined time has elapsed,
The power supply unit according to any one of claims 1 to 6, wherein the power supply unit is in an operation stop state in a normal state, is activated when the battery voltage is supplied from the battery, and the activation signal is received from the control unit. Sensor information collection device.   The sensor information collection device according to claim 1, wherein the detection unit is a magnetic sensor that detects magnetism as a measurement target and generates the detection data.

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