JP2007079669A - Radio equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide radio equipment for reducing power quantity to be used by preventing any unnecessary power supply from being executed. <P>SOLUTION: Radio equipment is configured of a crystal oscillator, a real time clock to be operated by receiving a signal oscillated by the crystal oscillator, a plurality of voltage control semiconductors for individually operating voltage control by the signal of the real time clock, a power source for supplying a power source to the voltage control semiconductor, an environment sensor for measuring such environment data as a temperature or moisture by the power source, a semiconductor element for analog/digital converting the environment data measured by the environment sensor by the power source and a bi-directional radio unit for transmitting the environment data converted by the semiconductor element by the power source, and for receiving instructions or conditions. When the measurement of the environment data by the environment sensor ends, a voltage control semiconductor stops power supply from the power source to the environment sensor. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  It belongs to the field of wireless devices that transmit, receive, or communicate via the numerical information and image information of the environment, the identification number of the individual and its accompanying information, the presence and position information of the individual, and the like.

  Wireless devices have long been used for sending and receiving information and information, but most of them are one-to-one communications. In order to achieve the purpose of communication, when the distance between them is far away, the transmission output and the directivity of the aerial line that are suitable for the distance have been required. However, an increase in the transmission output increases the load on the power supply capacity for the transmitter, and in mobile communications where power line power cannot be used, the capacity of the storage battery increases, and either a storage battery with a large capacity is used or charging is performed with a reduced capacity. It has been handled in a repeated manner. However, the method of expanding the notification distance by increasing the transmission power has a drawback that it easily causes information leakage and harmful interference. In addition, the directional antenna generally has a drawback that its size increases as the performance increases, resulting in a large-scale device configuration. As a method to compensate for this drawback, a method of performing relay communication by placing a relay radio device called a node between the sender and the receiver using a power-saving radio, a so-called repeater method has appeared, and in recent years the sender and the receiver Communication that reaches the final receiver via random nodes between nodes that can communicate with each other with many nodes in between, and returns the receiver's information etc. to the sender via the reverse path Methods, so-called multi-hop systems have emerged.

  Even if the repeater method and the multi-hop method use low-power radio for the node, they consume a large amount of power at the time of transmission, and at the time of reception is not as high as at the time of transmission or as long as the wireless device is in the reception state Consume. On the other hand, nodes are often driven by dry batteries or storage batteries. This is because it is not necessary to use such a node in a place where an electric wire can be laid. However, replacement and charging are indispensable as long as dry batteries and storage batteries are used. If it must be done frequently, maintenance costs and effort are increased and the benefits of using low-power radio are reduced.

  Some semiconductor elements and other elements have a function of being put in a sleep state when not in use, which is called a sleep mode. However, even in the sleep mode, a small amount of unnecessary power is consumed.

  Next, as an example of the meter reading device in Patent Document 1, the passive meter reading device includes a calendar clock, a wireless device power supply device, a transmission wireless device, a comparator, a central processing device, an image input device, and a central power supply. It consists of two OR circuits. Since the calendar clock and the OR circuit are always connected to a movable power source, they always operate. An approximate meter reading time is input to the calendar clock, and at this time, a pulse for turning on the power supply for the wireless device is issued at a constant cycle. As a result, electricity is supplied to the wireless transmission device, and the wireless device 0 is moved. When the power supply for the wireless device is powered by the device for supplying power to the wireless device for transmission and the comparator, the wireless device receives high frequency information transmitted at a specified frequency from the antenna and demodulates it, The contents are sent to the comparator.

The procedure for turning on / off the power for operating the meter-reading device sets the expected meter-reading period in the calendar clock. The calendar clock transmits a periodic pulse when it enters a preset period, that is, a period in which meter reading is assumed to be performed. On the other hand, when it is determined that the period is not expected to be performed, the calendar clock continues to keep time. A signal from the calendar clock sets the output of the first OR circuit to HIGH. When the output of the first OR circuit becomes HIGH, the power supply for the wireless device is turned on. When the power is turned on, the wireless transmission device starts reception. The wireless transmission device demodulates the received signal and sends the received information to the comparator. Compare whether the information sent is “meter reading command”. If the received signal is a meter reading command, the comparator sends a HIGH signal to the second OR circuit. The central power supply is turned on so that the output of the second OR circuit 125 becomes HIGH. As a result, the central processing unit and the image processing apparatus are turned on and begin to move. First, the central processing unit inputs HIGH to the two OR circuits for the purpose of turning the power supply on during the meter reading process. The central power supply sets the value to LOW after the central processing unit finishes a series of operations. And it prepares for the next meter-reading (refer patent document 1). .
Japanese Unexamined Patent Application Publication No. 2004-94787 (paragraphs 0014-0019, FIG. 1-3).

  In order for the wireless device to continue to operate without power supply from the outside, it is necessary to have a device that stores the power until the wireless device generates power and uses the generated electricity. The larger the amount of power used by the wireless device, the larger the generator and power storage device. Therefore, it is necessary to suppress power consumption by limiting the time for energizing the element in accordance with the necessity of the application field in which the wireless device is used.

  Further, in Patent Document 1, it is necessary to set a date and time for meter reading in advance in a calendar clock. Such a method is effective if the date and time for meter reading can be determined, but such a date and time may not be determined depending on the object to be measured.

  Therefore, it is a problem to be solved by the present invention to operate a low-power-consumption wireless device so that the number of times of external power supply and battery replacement can be reduced as much as possible in a device that does not use a calendar clock. is there.

    The wireless device of the present invention includes a crystal oscillator, a real-time clock that operates in response to a signal oscillated by the crystal oscillator, a plurality of voltage control semiconductors that individually perform voltage control using the signal of the real-time clock, and the voltage A power supply for supplying power to the control semiconductor, an environmental sensor for measuring environmental data by the power supply, a semiconductor element for analog / digital conversion of the environmental data measured by the environmental sensor by the power supply, and the semiconductor by the power supply A two-way radio that transmits the environment data converted by the element and receives commands and conditions.

In the voltage controlled semiconductor of the present invention, when the environmental sensor finishes measuring the environmental data, the power supply stops supplying power to the environmental sensor.
The voltage control semiconductor of the present invention controls the power supply so that power supply to the bidirectional radio is stopped after the bidirectional radio transmits the environmental data.
The wireless device of the present invention is installed in a room and measures the environment of the room.

The wireless device of the present invention is attached to a telephone pole and measures information on whether or not the telephone pole is collapsed.
And the radio | wireless apparatus of this invention is attached to a telephone pole, and measures the information of whether abnormality has generate | occur | produced in the transformer attached to the said telephone pole.

  The present invention can reduce the amount of power to be used by not performing unnecessary energization. Furthermore, since the amount of power used can be reduced, even when the power generation device is attached to the wireless device, a generator with a small amount of power generation can supply sufficient power. This also makes it possible to reduce the size and weight of the wireless device.

  Embodiments of the present invention will be described with reference to the drawings. The energization restriction sequence in the wireless device is a real-time clock, a method that operates regularly using a so-called RTC, and a method that operates sensitively in consideration of physical changes such as environmental changes such as vibration, acceleration, temperature, and humidity. Implemented. As a specific example, an example of a method of performing regular operation using RTC will be described as Example 1, and an example in which regular operation and sensitive operation are combined will be described as Example 2.

  A present Example is an example of the radio | wireless apparatus 10 carrying an environment sensor. As the environmental sensor 110, four types of sensors 101, 102, 103, and 104 that detect temperature, humidity, sunshine, and odor are mounted. Environmental data obtained by the wireless device 10 equipped with the environmental sensor 110 is transmitted to the device that controls the air conditioner through the environmental sensor network, and is used to keep the environment constant. In this embodiment, the environment sensor network normally uses a multi-hop method.

  FIG. 1 is a block diagram showing the structure of a wireless device 10 equipped with an environment sensor 110. A circuit configuration will be described. The wireless device 10 equipped with the environmental sensor 110 includes a real-time clock 125 that operates in response to a signal from the crystal oscillator 120, and two voltage control semiconductors VR1 and VR2 that have two power supply cutoff functions that operate individually in response to the signal from the real-time clock 125. A power supply 130 for supplying power to the voltage control semiconductors VR1 and VR2 having a power cut-off function, an environmental sensor 110, in this embodiment, a temperature sensor 101, a humidity sensor 102, a sunshine sensor 103, and an odor sensor 104, four sensors, measurement Multiplexer 140 that supplies power to the selected sensor, semiconductor element OPE-A + A / DC150 that amplifies the sensor signal and converts it to analog to digital, environmental sensor value and calibration curve Electrically erasable memory holding calibration values The device includes an element EPROM + Buf 160, a central processing unit 170 that performs communication control and other processing, a bidirectional radio 180 that transmits environment data and receives commands and conditions, and an antenna 190.

  The basis of the power saving of the present invention is a method of supplying power to an element that needs to be activated only when it is activated, and stopping the power supply when necessary processing is completed to prevent the power from being consumed. The wireless device 10 equipped with the environment sensor 110 is roughly divided into two types of power source supply timing. One is when collecting environmental data and when sending environmental data or receiving commands and conditions. Environmental data collection may occur several times before the data is transmitted. In this embodiment, a method of measuring three times per sensor and transmitting values for three times is employed.

  FIG. 2 shows output waveforms of the voltage control semiconductors VR1 and VR2 having a power supply cutoff function. It can be seen that VR2 is output once after VR1 is output three times. Since the voltage control semiconductors VR1 and VR2 with the power cutoff function operate by the output of the real time clock 125, the real time clock 125 is also programmed to output at the same timing as the voltage control semiconductors VR1 and VR2 with the power cutoff function. .

  Next, a work sequence that occurs when the voltage control semiconductor VR1 with a power supply cutoff function is output is a first sequence, and a work sequence that occurs when the voltage control semiconductor VR2 with a power supply cutoff function operates is a second sequence. . First, the first sequence will be described. FIG. 3 is a diagram illustrating the power supply state of each element supplied with power by the voltage control semiconductor VR1 with a power supply cutoff function, taking time along the X axis. Power is supplied to the four environmental sensors 110 in the order of measurement. When the measurement of a certain sensor is completed, the power is turned off, and the power supply is transferred to the next environmental sensor 110. The OPE-A + A / DC 150 and EPROM + Buf 160 are supplied with power from the measurement of the first environmental sensor 110 until the measurement of the last environmental sensor 110 is completed. The time when the power is supplied includes the actual work time, the time until the element is stabilized after the power is turned on, and the time until the power is safely turned off.

  Next, the second sequence will be described. FIG. 4 is a diagram showing the power supply state of each element supplied with power by the voltage control semiconductor VR2 with a power supply cutoff function, taking time along the X axis. While the power is supplied from the voltage control semiconductor VR2 with the power cut-off function, the EPROM + Buf 160, the central processing unit 170, and the two-way radio 180 are supplied with power. However, the bidirectional radio apparatus 180 is placed in the energization control state except during transmission and reception.

  Next, the flow of the first sequence will be described. FIG. 5 is a flowchart showing the first sequence. First, when it is started, 1 is substituted into the variable I indicating the order of the environmental sensors 110, the RTC is turned on, and the first sequence is started (step 101). The RTC signal is input to the voltage control semiconductor VR2 with the power cut-off function, and the voltage control semiconductor VR2 with the power cut-off function is turned on and supplied with power (step 102). The multiplexer selects the environmental sensor 110. If the selected environmental sensor 110 is the temperature sensor 101, power is supplied to the temperature sensor 101 (step 103). If the selected humidity sensor 102 is the humidity sensor 102, power is supplied to the humidity sensor 102. (Step 104) In the case of the sunshine sensor 103, power is supplied to the sunshine sensor 103 (Step 105), and in the case of the odor sensor 104, power is supplied to the odor sensor 104 (Step 106). The measured value of the environmental sensor 110 supplied with power from the OPE-A + A / DC 150 is amplified (step 107). The OPE-A + A / DC 150 converts the analog signal of the environmental sensor 110 from analog to digital (step 108). Next, the calibration curve and the calibration value recorded in the EEPROM are read (step 109). The environmental sensor value quantified by the read calibration curve or calibration value is calibrated (step 110). The calibrated calibration value is written in the EEPROM (step 111). The measured environmental sensor 110 is turned off (step 112). The next environmental sensor 110 is selected (step 113). Steps 103 to 113 are repeated until all the environmental sensors are measured, and the environmental sensor 110 is measured (step 114). When the measurement of all the environmental sensors 110 is completed, the voltage control semiconductor VR2 with the power cut-off function is turned off and the power supply is stopped (step 115). This completes one measurement cycle.

  Next, the flow of the second sequence will be described. FIG. 6 is a flowchart showing the second sequence. When started, 1 is substituted into a variable K indicating the order of the environmental sensors 110, the RTC is turned on, and the second sequence starts (step 201). In response to the output of the RTC, the voltage control semiconductor VR1 with a power cut-off function is turned on, and power is supplied to the EPROM + Buf 160, the central processing unit 170, and the two-way radio 180 (step 202). The central processing unit 170 that receives the power supply starts initialization (step 203). The two-way radio 180 that is not used to suppress power consumption is put into the energization control state (step 204). The central processing unit 170 creates a packet header for data transmission (step 205). Next, the measured value of each environmental sensor stored in the EEPROM is selected (step 206). If the selection (when K = 1) is the temperature sensor 101, the measured value of the temperature sensor 101 is selected (step 207). If the selection (when K = 2) is the humidity sensor 102, the measurement value of the humidity sensor 102 is selected (step 208). If the selection (when K = 3) is the sunshine sensor 103, the measured value of the sunshine sensor 103 is selected (step 209). If the selection (when K = 4) is the odor sensor 104, the measured value of the odor sensor 104 is selected (step 210). Next, the value of the selected environmental sensor 110 is read (step 211). The read value of the environmental sensor 110 is incorporated into the packet (step 212). The next environmental sensor 110 is selected (step 213). Selection is performed on all of the environmental sensors 110 (step 214).

  After the measurement values of all the environmental sensors 110 are incorporated into the packet, the two-way radio 180 is switched to the transmission state (step 215). Then, the packet is transmitted (step 216). The two-way radio 180 is set in the reception mode, and a signal from the transmission destination is received (step 217). The reception confirmation of the transmission destination is performed (step 218). If it is not confirmed that the packet is correctly received, the process returns to step 216 to retransmit the packet. On the other hand, if it is received correctly, the process proceeds to the next step 219. Next, the number of retries for receiving a command or the like is designated (step 219). First, the two-way radio 180 is set in a receiving state (step 220). Next, the bidirectional radio 180 receives information such as a command (step 221). When the reception is completed, the two-way radio 180 is brought into the energization control state (step 222). It is determined whether or not conditions have been received (step 223). If no conditions are received, the number of receptions is incremented (step 224). When the number of receptions exceeds the specified number (step 225), the voltage control semiconductor VR1 with the power cut-off function is turned off and the power is turned off (step 229). (Step 226) The command / condition is received again (Step 221). If a command / condition is received (step 223), the command / condition is decoded from the received information (step 227), and if the value is a condition, it is stored in the EEPROM 160 (step 229). .

  FIG. 7 is a flowchart showing the relationship between the first sequence and the second sequence. When started, the designated number of times is input to the variable N, and 1 is assigned to the variable I representing the current number of times (step 301). In the present embodiment, the first sequence is performed three times. That is, the measurement of the environment sensor 110 is three times. Next, a sequence for collecting environmental data is activated (step 302). 1 is added to the current number of measurements (step 303), and it is determined whether the current number of measurements has reached the specified number (step 304). When it is determined that the current number does not reach the specified number, the data collection sequence is activated again (step 302). On the other hand, it is determined whether or not the current number of measurements has reached the specified number (step 304). When it is determined that the current number has reached the specified number, a sequence for transmitting environmental data is activated (step 305). That is, the second sequence is executed once. This means that the environmental sensor value is transmitted once. Then, the sequence process ends.

  In this embodiment, an application example of the wireless device of the present invention will be described. An environmental sensor network that manages air conditioning of a building as a first application example, and a wireless network that is installed in a telegraph pole and provides information about equipment associated with the telegraph pole as a second application example will be described.

  FIG. 9 is a schematic diagram of an environmental sensor network for the purpose of air conditioning management of a building. In this application example, three types of wireless devices 910, 920, and 930 are used. First, there is a wireless device 930 called an environmental sensor node equipped with environmental sensors, for example, sensors such as temperature, humidity, and sunshine. Next, the communication node 920 has a function of relaying radio waves without having an environmental sensor. The upper and lower floors are connected by a wired cable, and a base station 910 that receives or emits radio waves emitted from the communication node 920 and the environment sensor node 930 is formed. A transmission packet sent to the base station has a header following 10101010 indicating that it is the head of the packet. This is followed by three temperature measurements, three humidity measurements, three sunshine measurements, and three odor measurements. Moreover, SP is inserted between each measured value. After the third odor measurement, a packet end signal such as CRC continues.

  In FIG. 9, five environment sensor nodes 930a, 930b, 930c, 930d, and 930e and four communication nodes 920a, 920b, 920c, and 920d communicate with the base station 910. In this case, the environment sensor nodes 930a, 930b, 930c, 930d, and 930e also serve as the multi-hop communication nodes 920a, 920b, 920c, and 920d, similarly to the communication nodes 920a, 920b, 920c, and 920d. When radio wave hopping is performed according to the “bound” arrow shown in FIG. 9, it is determined which route is used to reach the terminal environmental sensor nodes 930a, 930b, 930c, 930d, and 930e. When the signal reaches the terminal environmental sensor nodes 930a, 930b, 930c, 930d, and 930e, and the route is determined, the route is sent back to the base station 910 this time. When the signal reaches the environmental sensor nodes 930a, 930b, 930c, 930d, 930e, the information obtained from the environmental sensor is added to the end of the signal or a designated part. The environmental sensor nodes 930a, 930b, 930c, 930d, and 930e transmit a signal to which information is newly added according to a normal route. Since the same operation is repeatedly performed at the environmental sensor nodes 930a, 930b, 930c, 930d, and 930e in the route, when the signal reaches the base station 910, the environmental sensor nodes 930a, 930b, 930c, 930d, and 930e illustrated in FIG. The base station 910 can obtain the numerical value detected by the mobile station. Based on these data, the air conditioning system can carry out fine temperature management. Regarding the degree of the environmental sensor and the communication node, since it is rare to be installed at a specific position, the power source is a battery, for example, a dry battery or a small battery. Usually, the response time of the temperature sensor is approximately several minutes. Accordingly, the environmental sensor information is about once every ten minutes. That is, since the ratio of the waiting time to the operating time is very long, the use of the wireless device of the present invention has an effect of keeping the battery consumption low. By suppressing battery consumption, the frequency of battery replacement can be reduced. In addition, when the power consumption is kept low, a generator with low power generation capability, for example, a combination of a solar battery or a piezo effect battery and a secondary battery, enables a wireless device that does not require battery replacement.

Next, a wireless network for the purpose of managing telephone poles will be described. FIG. 10 is a schematic diagram showing a wireless network for the purpose of managing telephone poles. Measurement nodes 1010a, 1010b, 1010c, 1010d are attached to each of the telephone poles 1030a, 1030b, 1030c, 1030d. The measurement nodes 1010a, 1010b, 1010c, and 1010d are states related to the telephone poles 1030a, 1030b, 1030c, and 1030d, for example, the heat generation state of the transformers 1020a and 1020c, wire breakage, overcurrent and sagging of the wire, Make measurements. Similarly, it has the purpose of collecting weather information such as temperature, humidity, wind direction, wind speed, sunshine, and weather information.
Since the measurement nodes 1010a, 1010b, 1010c, and 1010d can be supplied with electricity from the power line, they do not normally need to be driven by batteries. However, in the event of an emergency such as a disaster, it is necessary to equip a battery as a spare power source in the event that the supply of electricity stops. In addition, by making the power supply the same as that of the wireless device of the first embodiment, it becomes possible to operate for a long time when the power line cannot be transmitted in an emergency. In addition, since the frequency of checking the status of the telephone poles 1030a, 1030b, 1030c, and 1030d is expected to be once a day at normal times, the power consumption can be reduced by stopping the power supply at other times. The amount can be reduced. Generally, the number of utility poles used by a single electric power company is 3 million or more. Therefore, using the power supply method of the wireless device according to the first embodiment brings a significant energy saving effect and at the same time greatly increases the operation cost. Has a lowering effect.

  On the other hand, it is preferable to use a specific power-saving wireless standard as the wireless standard used in the wireless network for the purpose of managing the telephone pole because the distance between the telephone poles may reach 40 m or more. A specific power wireless standard wireless device generally consumes more than 10 times the power of a weak wireless standard wireless device, but normally it can be continuously operated because it is supplied with electricity from the power line. . However, because the specific power-saving radio standard specifies the high-frequency output with the antenna power, the transmission power can be concentrated in the direction of the other party using the directional antenna, so the transmission power can be reduced and interference can occur. You can communicate by holding down.

  Although FIG. 10 shows 1030c when the transformer transformer generates heat and 1030b when the telegraph pole tilts, the heat generation of the transformer transformer 1020c can be measured by a temperature sensor, and the telegraph pole tilt 1030b can be measured by a level monitor.

  Note that the base station that issues commands and collects measurement values is not shown in FIG. 10, but is located on the right side of FIG. The base station is usually connected to a computer of a power company or a wired / wireless network. In the wireless network for the purpose of managing the telegraph poles 1030a, 1030b, 1030c, and 1030d shown in this embodiment, the measurement nodes 1010a, 1010b, 1010c, and 1010d are laid on the telegraph poles 1030a, 1030b, 1030c, and 1030d. If several measurement nodes 1010a, 1010b, 1010c, 1010d are damaged continuously due to an emergency situation or a failure, there is a risk that information after the damaged measurement node cannot be obtained. Complementing this is a mobile base station having a fixed base station function. The mobile base station has a communication function equivalent to that of a fixed original base station, communicates with an arbitrary measurement node, for example, a measurement node after a damaged measurement node, It is a device that can easily obtain information after a damaged measurement node.

  There are two types of mobile base stations: in-vehicle type and handy terminal type. FIG. 11 is an external view of a handy terminal type mobile base station. The handy terminal 1100 of this embodiment has a main display device 1110 and two auxiliary display devices 1120a and 1120b, and has a function key 1130 as an input device. The display devices 1110, 1120a, 1120b of the handy terminal 1100 display information, for example, information received from the measurement node communicated with the main display device 1110, and the spare display devices 1120a, 1120b display the communication status. The function key 1130 is an input device for issuing a predetermined command, for example, sending a measurement command, displaying received data, switching communication, and the like. The antenna 1140 receives a signal from the measurement node and transmits a command or the like to the measurement node in order to perform transmission / reception with the measurement node. Since the handy terminal 1100 is used outdoors, the handy terminal 1100 is required to have performances such as temperature characteristics against high and low temperatures, waterproofness, and robustness.

  The handy terminal 1100 can be used to collect information on the wireless network after the measurement node damaged at the site when the wireless network breaks down, and to investigate the cause of the damage. It is done.

Block circuit diagram of wireless device with environmental sensor Output timing chart of VR1 and VR2 Power supply time chart of the first sequence Second sequence power supply time chart First sequence flowchart Second sequence flowchart General sequence flowchart Packet format Schematic diagram of building air conditioning management Schematic diagram of radio network for telegraph pole management Schematic diagram of the handy terminal

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Wireless apparatus 101 Temperature sensor 102 Humidity sensor 103 Sunlight sensor 104 Odor sensor 110 Environmental sensor 120 Crystal oscillator 125 Real time clock 130 Power supply 140 Multiplexer 150 Semiconductor device OPE-A + A / DC
160 Memory element EPROM + Buf
170 Central processing unit 180 Two-way radio 190 Antenna 910 Base station 920, 920a, 920b, 920c, 920d Communication node 930, 930a, 930b, 930c, 930d, 930e Environmental sensor node 1010a, 1010b, 1010c, 1010d Measurement node 1020a 1020c Transformer transformer 1030a, 1030b, 1030c, 1030d Telegraph pole 1100 Handy terminal 1110 Main display device 1120a, 1120b Auxiliary display device 1130 Function key VR1, VR2 Voltage control semiconductor with power cut-off function

Claims (6)

Crystal transmitter,
A real-time clock that operates in response to a signal generated by the crystal oscillator;
A plurality of voltage control semiconductors that individually perform voltage control with a signal of the real-time clock; and
A power supply for supplying power to the voltage controlled semiconductor;
An environmental sensor for measuring environmental data by the power source;
A semiconductor element for analog / digital conversion of the environmental data measured by the environmental sensor with the power source;
A bidirectional radio that transmits the environment data converted by the semiconductor element by the power source and receives instructions and conditions;
A wireless device.   2. The wireless device according to claim 1, wherein the voltage control semiconductor stops power supply to the environmental sensor when the environmental sensor finishes measuring the environmental data. 3. The wireless device according to claim 1, wherein the voltage control semiconductor controls the power supply so that power supply to the bidirectional wireless device is stopped after the bidirectional wireless device transmits the environmental data. The wireless device according to claim 1, wherein the wireless device is installed in a room and measures the environment of the room. The radio | wireless apparatus as described in any one of Claims 1 thru | or 3 which attaches to a telephone pole and measures the information of whether the said telephone pole has collapsed. The radio apparatus according to claim 1, wherein the radio apparatus is attached to a telephone pole and measures information on whether or not an abnormality has occurred in a transformer attached to the telephone pole.

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