JP2019060747A - Measuring device, monitoring device, and measuring device monitoring system - Google Patents

Abstract

To increase the efficiency of work at installation time of a measuring device that measures the position of an observation surface (e.g., a water level).SOLUTION: A measuring device of the present invention comprises: measurement means for sending a waveform signal of prescribed frequency to an observation surface, receiving a reflected wave that is reflected by the observation surface, and measuring the position of the observation surface; signal formation means for forming a signal that includes the necessary information for adjustment at installation time of the measurement means; and wireless communication means for communicating by wireless the signal formed by the signal formation means. A monitoring device of the present invention comprises: wireless communication means for receiving a signal that includes the necessary information for adjustment at installation time of a measuring device that measures the position of an observation surface; information restoration means for restoring the necessary information for adjustment at installation time of the measuring device that is included in the received signal; and output means for outputting the restored necessary information for adjustment at installation time of the measuring device.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a measurement device, a monitoring device, and a measurement monitoring system.

  Conventionally, in order to observe the water level of a river or the like, a water level gauge is installed near the river (see Patent Document 1). In order to secure the power supply to the water level gauge and to control the observation operation of the water level gauge, a station etc. of the control station is installed at a position slightly away from the water level gauge, and the water level gauge and wired The control unit connected in step 2 is installed (see Figure 2).

  Various types of water level gauges can be used to monitor the water level of the river, and an ultrasonic water level gauge 51 is often used as one of them.

  The ultrasonic water level meter 51 transmits ultrasonic pulses to the water surface, and the ultrasonic water level meter 51 receives ultrasonic pulses reflected on the water surface, and the difference (delay) time between the transmission time and the reception time Measure the distance between the ultrasonic water level gauge and the water surface based on. In order to allow the ultrasonic water gauge 51 to receive ultrasonic pulses reflected to the water surface, it is necessary to set the ultrasonic water gauge 51 so that the central axis of the ultrasonic pulses is perpendicular to the water surface. .

  Therefore, when installing the ultrasonic water level gauge 51, it is necessary to adjust the installation direction of the ultrasonic water level gauge 51 appropriately. Conventionally, in the central office, an oscilloscope 53 for received waveform monitoring is connected to the control unit 52, and the installation instructor remotely communicates with the operator at the installation site while looking at the waveform on the oscilloscope 53, The operator instructs the installation direction of the ultrasonic water level gauge 51.

JP 2001-248129 A

  However, as mentioned above, since the central office is provided at a position slightly away from the water level gauge, the installation instructor can use a telephone etc. It indicates the installation direction etc. Therefore, it takes time to install the water level gauge, which is an inefficient operation.

  Therefore, there is a need for a measuring device, a monitoring device, and a measuring device monitoring system that can make the work at the time of installation of the measuring device that measures the position of a viewing surface (for example, water surface) more efficient.

  In order to solve such problems, the measuring device according to the first aspect of the present invention transmits (1) a waveform signal of a predetermined frequency to the viewing side, receives a reflected wave reflected on the viewing side, The measuring means for measuring the position of the viewing side, (2) signal forming means for forming a signal including information necessary for adjustment at the time of installation of the measuring means, and (3) wirelessly communicating the signal formed by the signal forming means And wireless communication means.

  A monitoring device according to a second aspect of the present invention includes: (1) wireless communication means for receiving a signal including information necessary for adjustment at the time of installation of the measuring device for measuring the position of the observation side; Information recovery means for recovering information necessary for adjustment at the time of installation of the measuring device, and (3) output means for outputting information necessary for adjustment at the time of installation of the recovered measuring device. .

  A measuring device monitoring system according to a third aspect of the present invention is characterized by comprising one or more measuring devices according to the first aspect of the present invention and a monitoring device according to the second aspect of the present invention.

  ADVANTAGE OF THE INVENTION According to this invention, the operation | work at the time of installation of the measuring device which measures the position of a viewing side (for example, water surface) can be made more efficient.

BRIEF DESCRIPTION OF THE DRAWINGS It is a whole block diagram which shows the whole structure of the water gauge radio | wireless monitor system which concerns on embodiment. It is explanatory drawing explaining the water level observation state by the conventional ultrasonic water level gauge. It is a sequence diagram which shows the processing operation of the water gauge radio | wireless monitoring system 10 which concerns on embodiment.

(A) Embodiment Hereinafter, embodiments of a measuring device, a monitoring device, and a measuring device monitoring system according to the present invention will be described in detail with reference to the drawings.

  In this embodiment, at the time of installation or maintenance of the ultrasonic water level gauge which measures the water level of the river (hereinafter collectively referred to as “at installation time”), the water level gauge which adjusts the installation of the ultrasonic water level gauge The case where the present invention is applied to a wireless monitoring system is illustrated.

(A-1) Configuration of Embodiment FIG. 1 is an overall configuration diagram showing an overall configuration of a water level indicator wireless monitoring system according to the embodiment.

  In FIG. 1, a water gauge wireless monitoring system 10 according to the embodiment includes a water level sensor wireless terminal 1 as a measuring device and a management terminal 2 as a monitoring device.

[Water level sensor wireless terminal 1]
The water level sensor wireless terminal 1 includes an ultrasonic sensor unit 11 having an ultrasonic wave transmitting / receiving unit 12, a temperature sensor unit 13, a control unit 14, a wireless communication unit 15, and a power supply unit 16.

  The water level sensor wireless terminal 1 at least receives received waveform data obtained by A / D (analog / digital) conversion of a received waveform (analog) received by the ultrasonic sensor unit 11 as an ultrasonic water level gauge, It wirelessly communicates signals including water level values and the like.

  The water level sensor wireless terminal 1 is installed by a worker at a measurement point of water level such as a river. A conventional water level gauge for measuring the water level of a river or the like is connected by wire with a control device in a station located nearby, but the water level sensor wireless terminal 1 according to this embodiment is a water level sensor The ultrasonic sensor unit 11 is physically integrated with a wireless communication unit 15 that wirelessly communicates sensing data acquired by the ultrasonic sensor unit 11.

  By using the water level sensor wireless terminal 1 according to this embodiment, the operator can install the water level sensor wireless terminal 1 more easily than in the related art without performing work of wired connection.

[Ultrasonic sensor unit 11]
The ultrasonic sensor unit 11 has an ultrasonic wave transmitting / receiving unit 12, functions as an ultrasonic water level gauge, and measures the water level value of the river.

  Here, the “water level value” is appropriately defined according to the measurement method by the ultrasonic sensor unit 11. That is, the "water level value" may be a distance from the ultrasonic transducer 12 to the water surface, and may be a fluctuation value from a predetermined reference water level value. Furthermore, it is good also as a value which added the distance length from the river bottom to the water surface to the fluctuation value from the above-mentioned predetermined standard water level value. In this embodiment, the case where the "water level value" is the former is exemplified.

  For example, at the time of installation and maintenance, the ultrasonic sensor unit 11 transmits the ultrasonic wave at the time when the ultrasonic wave transmitting and receiving unit 12 transmits the ultrasonic wave (transmission time) and at the time when the ultrasonic wave transmitting and receiving unit 12 receives the reflected wave ( Based on the difference (time) from the reception time, the distance length between the position of the ultrasonic wave transceiver 12 and the water surface is calculated. Assuming that the distance between the position of the ultrasonic transducer 12 and the water surface is the steady water level (that is, it is assumed to be the reference water level), the water level is calculated using the fluctuation value relative to the reference water level. Apply the method of measuring In addition, the measuring method of the water level by the ultrasonic sensor part 11 can apply a various method widely, and is not specifically limited.

  In addition, at the time of installation of the water level sensor wireless terminal 1 or at the time of maintenance, it is confirmed whether the ultrasonic wave transmitting / receiving unit 12 transmits the ultrasonic pulse correctly and receives the reflected wave correctly. It will be necessary. In this case, the ultrasonic sensor unit 11 controls the received waveform received by the ultrasonic wave transmitting / receiving unit 12 in order to convert the received waveform (analog waveform) received digitally into a digital signal and transmit the converted signal to the management terminal 2. Give to 14.

[Ultrasonic wave transceiver 12]
The ultrasonic wave transmitting and receiving unit 12 generates and transmits an ultrasonic wave pulse transmitted to the water surface of the river, or receives a reflected wave reflected on the water surface. The ultrasonic wave transmission / reception unit 12 can apply an existing ultrasonic wave transmission / reception unit. For example, the frequency of the ultrasonic pulse, the transmission output value, and the like are set, and the transmission unit transmits the ultrasonic pulse. It has (for example, a speaker etc.) and a wave receiving part (for example, a microphone part etc.) which receives a reflected wave. The ultrasonic wave transmitting / receiving unit 12 includes a pulse generator, an amplifier (first amplifier) for amplifying the amplitude of the pulse from the pulse generator, an amplifier (second amplifier) for amplifying the amplitude of the reception waveform, and the like. You may have it.

  Since it is only necessary to receive the reflected wave reflected on the water surface of the river and recognize the distance from the position of the ultrasonic wave transceiver 12 to the water surface, the normal time from the position of the ultrasonic wave transceiver 12 to the water surface The frequency of the ultrasonic pulse can be appropriately set in accordance with the distance length of (1), and the frequency of the ultrasonic pulse is preferably in the range of, for example, several Hz to about 25 kHz.

  In addition, it is necessary to properly set the direction and position of transmission of the ultrasonic wave transmitting / receiving unit 12 so that the ultrasonic wave transmitting / receiving unit 12 can correctly receive the reflected wave reflected on the water surface. That is, it is desirable to set the central axis of the transmitted ultrasonic pulse to be substantially perpendicular to the water surface. It is desirable to install the ultrasonic transducer 12 (ie, the water level sensor wireless terminal 1) so that the central axis of the ultrasonic pulse is substantially perpendicular to the water surface. There are cases where the place where the sensor wireless terminal 1) is installed is a place where installation is extremely difficult, where the flow of a river is intense, or where installation of the ultrasonic wave transceiver unit 12 is very difficult. Therefore, at the time of installation or maintenance of the water level sensor wireless terminal 1, an installation operation such as the direction and position of transmission of the ultrasonic wave transmitting / receiving unit 12 is performed by the operator.

[Temperature sensor unit 13]
The temperature sensor unit 13 detects the outside air of the place where the water level sensor wireless terminal 1 is installed, and gives the detected temperature information to the control unit 14. Since the speed (sound velocity) of the ultrasonic pulse is affected by environmental information such as temperature, the temperature sensor unit 13 acquires the ultrasonic sensor unit 11 (water level sensor wireless terminal 1) when installing or maintaining it. Temperature information is also transmitted to the management terminal 2 side. Thus, the water level sensor wireless terminal 1 can be correctly installed on the basis of environmental information such as temperature at the time of installation or maintenance.

  The temperature sensor unit 13 is an example of an environment information detection unit that affects water level measurement by ultrasonic waves. The environmental information detection unit referred to here can be widely applied as long as it detects environmental information affecting water level measurement by ultrasonic waves, and the temperature sensor unit 13 detects the temperature of the outside air up to the water surface described above. In addition to the above, a temperature sensor for detecting the temperature in the housing of the water level sensor wireless terminal 1, a wind speed sensor, or the like may be included.

[Control unit 14]
The control unit 14 is a processing unit that controls various operations of the water level sensor wireless terminal 1. Although the hardware of the control unit 14 is not shown, for example, it comprises a CPU, a ROM, a RAM, an EEPROM and the like, and the CPU executes a processing program stored in the ROM to obtain the water level sensor wireless terminal 1 Realize various functions of

  The control unit 14 roughly has an installation / maintenance mode 141 of the water level sensor wireless terminal 1 and a measurement mode 142 for measuring the water level of the river. The switching method between the installation / maintenance mode 141 and the measurement mode 142 may be performed by switching the switch mounted on the water level sensor wireless terminal 1 or the operation mode received by wireless communication from the management terminal 2 The operation mode may be switched by software in accordance with the switching command.

  The measurement mode 142 is an operation mode in which the water level of the river is measured by measuring the distance length to the water surface of the river after various settings in the installation and maintenance mode.

  The installation and maintenance mode 141 is an operation mode when the water level sensor wireless terminal 1 is installed and maintained.

  In the installation / maintenance mode 141, the control unit 14 A / D converts at least the received waveform received by the ultrasonic wave transmitting / receiving unit 12 and wirelessly communicates received waveform data to the management terminal 2. Thus, the ultrasonic wave transmitting / receiving unit 12 can correctly receive the reflected wave to the administrator who is near the water level sensor wireless terminal 1 by wirelessly transmitting the digitized received wave waveform data to the management terminal 2 You can check if it is. Also, as described later, the management terminal 2 can be deployed near the water level sensor wireless terminal 1. That is, since the manager can instruct near the worker than in the conventional case, communication between the manager and the worker becomes easier, and the worker transmits and receives the ultrasonic wave transceiver unit 12 (water level sensor wireless terminal 1). Efficiency of installation work can be achieved.

  Further, in the installation / maintenance mode 141, the control unit 14 wirelessly communicates the temperature information acquired from the temperature sensor unit 13 to the management terminal 2. As a result, when installing or maintaining the ultrasonic wave transmitting / receiving unit 12, temperature information affecting the ultrasonic wave can be notified to the administrator. Therefore, the central axis of the ultrasonic wave transmitted from the ultrasonic wave transmitting / receiving unit 12 The transmission output value etc. can be adjusted with high accuracy.

  Furthermore, in the installation / maintenance mode 141, information regarding the frequency of the ultrasonic pulse transmitted by the current ultrasonic wave transmitting / receiving unit 12, the angle of the central axis of the transmitted ultrasonic wave, and the transmitted ultrasonic wave. Information on the transmission output value of the sound wave, part or all of the received wave or the like of the received wave may be given to the management terminal 2.

[Wireless communication unit 15]
The wireless communication unit 15 performs wireless communication with the management terminal 2 under the control of the control unit 14. The wireless communication unit 15 can widely apply various wireless communication technologies. For example, a radio communication technology using a 920 MHz band radio frequency defined in IEEE 802.15.4 can be applied. The radio frequency is not particularly limited, and for example, a 2.4 GHz band, a 429 MHz band, or the like may be used. The 920 MHz band is preferable because radio wave reachability is good and communication transmission speed is relatively high. In addition, the case where direct radio | wireless communication is possible between the water level sensor radio | wireless terminal 1 and the management terminal 2 is illustrated here. However, one or more other wireless terminals (not shown) may be interposed between the water level sensor wireless terminal 1 and the management terminal 2, and the water level sensor wireless terminal 1 may be a management terminal by wireless multi-hop. Information may be transmitted toward 2 (in particular, information including received waveform data in the installation / maintenance mode).

[Power supply unit 16]
The power supply unit 16 supplies power to each component of the water level sensor wireless terminal 1. The power supply unit 16 can apply, for example, a solar cell, a secondary battery, or the like. Conventionally, it is very difficult to supply power to the water level at the place where the water level gauge is installed, and a local building is built near the water level gauge (for example, at a distance of about 500 m to 1 km) to supply power to the water level gauge. There is. However, in this embodiment, by mounting the power supply unit 16 in the water level sensor wireless terminal 1, it is not necessary to supply power from the central office. In addition, in the installation / maintenance mode of the water level sensor wireless terminal 1, in order to check the status of the power supply unit 16, information on the battery capacity of the power supply unit 16 is wirelessly transmitted to the management terminal 2 as necessary. May be

[Management terminal 2]
The management terminal 2 performs wireless communication with the water level sensor wireless terminal 1 and manages information acquired from the water level sensor wireless terminal 1. The management terminal 2 may be a dedicated terminal used for installation or maintenance of the water level sensor wireless terminal 1, and manages the water level based on measurement information from the water level sensor wireless terminal 1 operating in the measurement mode. It may function as a terminal.

  In this embodiment, the function of the management terminal 2 used when installing or maintaining the water level sensor wireless terminal 1 will be mainly described in detail.

  The management terminal 2 can be realized by a personal computer (PC) having a wireless communication function. The management terminal 2 may be one that can be mounted on a movable mobile body (for example, a vehicle or the like), or may be one that can be carried by an administrator. Therefore, the administrator can go to a position closer to the water level sensor wireless terminal 1 to be installed than the central office, and the administrator can appropriately instruct the worker who installs the water level sensor wireless terminal 1 it can.

  Although the administrator can approach to a place closer to the worker than before, since the water level sensor wireless terminal 1 works near the river, the administrator can, for example, use the telephone, the smartphone, the transceiver, etc. In response to this, the installation instruction of the water level sensor wireless terminal 1 is performed.

  The management terminal 2 includes a control unit 21, a display unit 22, and a wireless communication unit 23.

[Wireless communication unit 23]
The wireless communication unit 23 performs wireless communication with the water level sensor wireless terminal 1 under the control of the control unit 21. The wireless communication unit 23 performs wireless communication by the same wireless communication technology as the wireless communication unit 15 of the water level sensor wireless terminal 1.

[Control unit 21]
The control unit 21 is a processing unit that controls various functions of the management terminal 2. Although the hardware of the control unit 21 is not illustrated, for example, the control unit 21 is configured to include a CPU, a ROM, a RAM, an EEPROM, and the like, and the management terminal 2 is executed by executing a processing program stored in the ROM. Realize various functions of

  The control unit 21 extracts received wave waveform data acquired from the operation mode instructing unit 211 that instructs the water level sensor wireless terminal 1 to switch the operation mode and the water level sensor wireless terminal 1 operating in the installation / maintenance mode And a received waveform regenerating unit 212 that D / A converts the received waveform data to restore the received waveform.

  The operation mode instructing unit 211 instructs the water level sensor wireless terminal 1 to switch the operation mode (measurement mode, installation / maintenance mode) of the water level sensor wireless terminal 1. That is, the operation mode instructing unit 211 instructs the water level sensor wireless terminal 1 at least a signal serving as a trigger for shifting from the measurement mode to the installation / maintenance mode. In this embodiment, as described later, a case where a monitor request transmitted to the water level sensor wireless terminal 1 is used as a switching trigger to the installation / maintenance mode is exemplified.

  As another method, for example, the administrator selects the operation mode of the water level sensor wireless terminal 1 through an operation unit (for example, a display operation unit of a touch panel, a keyboard, etc.) (not shown) to receive the operation mode. It is also good. That is, when installing or maintaining the water level sensor wireless terminal 1, the installation / maintenance mode is selected, and when the installation or maintenance of the water level sensor wireless terminal 1 is completed, the measurement mode is selected.

  The received wave waveform reproducing unit 212 displays the received wave waveform obtained by A / D converting the received wave waveform data from the water level sensor wireless terminal 1 received through the wireless communication unit 23 on the display unit 22.

  Here, the received wave waveform reproducing unit 212 may obtain the water level value calculated by the ultrasonic sensor unit 11 of the water level sensor wireless terminal 1 through the wireless communication unit 23, and may display the water level value.

  That is, the display unit 22 displays the time-series fluctuation waveform of the reception waveform of the ultrasonic wave transmitting / receiving unit 12 or the time-series fluctuation value of the water level value calculated by the ultrasonic sensor unit 11. Thereby, the administrator can confirm the wave receiving waveform of the ultrasonic wave transmitting / receiving unit 12 displayed on the display unit 22, and can instruct the operator to adjust the transmission direction of the ultrasonic wave transmitting / receiving unit 12 or the like. .

  Further, the received wave waveform reproducing unit 212 also acquires temperature information detected by the temperature sensor unit 13 from the water level sensor wireless terminal 1 through the wireless communication unit 23, and displays the temperature information on the display unit 22.

[Display 22]
The display unit 22 is a display unit that displays information acquired from the water level sensor wireless terminal 1 under the control of the control unit 21.

(A-2) Operation of Embodiment Next, the processing operation of the water gauge wireless monitoring system 10 according to the embodiment will be described in detail with reference to the drawings.

  FIG. 3 is a sequence diagram showing the processing operation of the water gauge radio monitoring system 10 according to the embodiment.

  The operator installs the water level sensor wireless terminal 1 at a measurement point in the river, and the administrator places the management terminal 2 at a position near the measurement point.

  First, the management terminal 2 sends a connection request to the water level sensor wireless terminal 1 to be subjected to wireless communication (S101), and the water level sensor wireless terminal 1 receiving this connection request responds to the management terminal 2 with connection permission. (S102).

  When the connection permission is received from the water level sensor wireless terminal 1, the management terminal 2 makes a monitor request to the water level sensor wireless terminal 1 (S103). This monitor request serves as a switching trigger to the installation / maintenance mode.

  In the water level sensor wireless terminal 1, the ultrasonic wave transmitting / receiving unit 12 transmits an ultrasonic wave pulse, and the ultrasonic wave transmitting / receiving unit 12 receives the reflected wave reflected on the water surface. Further, the temperature sensor unit 13 measures the outside air temperature (ambient temperature) (S104). That is, in the water level sensor wireless terminal 1 that has received the monitor request, the operation mode of the control unit 14 is switched to the installation / maintenance mode. Then, in order to determine whether the ultrasonic wave transmitting / receiving unit 12 is properly installed, the ultrasonic wave transmitting / receiving unit 12 transmits the ultrasonic wave and receives the reflected wave.

  In the water level sensor wireless terminal 1, the wave receiving waveform received by the ultrasonic wave transmitting / receiving unit 12 is given to the control unit 14, and the control unit 14 A / D converts the wave receiving waveform and converts it into a digital signal (S105) ). Note that various methods can be applied to the conversion processing of the received wave waveform into digital data, and for example, the received wave waveform varying in time series is sampled at predetermined time intervals, and the sampling value is indicated by a predetermined number of quantization bits. A method of quantizing can be applied.

  The ultrasonic wave transmitting / receiving unit 12 periodically transmits an ultrasonic wave pulse every predetermined time to acquire a received wave waveform variation reflected on the water surface. In addition, the ultrasonic wave transmitting / receiving unit 12 transmits ultrasonic pulses continuously, periodically receives a reflected wave every predetermined time, and obtains intermittent (periodic) fluctuation of the received wave waveform. You may do it.

  In the water level sensor wireless terminal 1, the ultrasonic sensor unit 11 refers to the temperature detected by the temperature sensor unit 13 to determine the velocity (sound velocity) of ultrasonic waves and the transmission timing of ultrasonic pulses at the ultrasonic wave transceiver unit 12. The distance length from the position of the ultrasonic wave transmitting / receiving unit 12 to the water surface is sequentially calculated based on the reception timing of the reflected wave, and the fluctuation value with respect to the reference water level is calculated as the water level (S106).

  In the water level sensor wireless terminal 1, the control unit 14 transmits transmission data (measurement result) including the reception waveform data of the ultrasonic wave transmitting / receiving unit 12, the temperature information, and the water level value calculated by the ultrasonic sensor unit 11. Form.

  When the wireless communication unit 15 acquires the transmission data (measurement result) formed by the control unit 14, the wireless communication unit 15 generates a packet including the transmission data and wirelessly transmits it to the management terminal 2 (S107).

  In the management terminal 2, when the wireless communication unit 23 receives the received signal from the water level sensor wireless terminal 1, the received data (measurement result) included in the received packet is extracted. The control unit 21 extracts received wave waveform data from the measurement result included in the received packet, restores the received wave waveform, and reproduces the received wave waveform on the display unit 22. The control unit 21 also displays the water level value included in the measurement result on the display unit 22 (S108).

(A-3) Effects of the Embodiment As described above, in this embodiment, the ultrasonic sensor unit 11 as the ultrasonic water level gauge includes the control unit and the wireless communication unit, and the measurement results including the ultrasonic wave reception waveform By wirelessly communicating with the management terminal, the management terminal can reproduce the received waveform. As a result, it is not necessary to perform in a local office as in the prior art, and the degree of freedom of the work place is increased, for example, the received waveform can be monitored at a place near the work place. For example, work efficiency is increased such that the administrator can instruct nearby workers while confirming the received waveform displayed on the management terminal.

  Further, according to this embodiment, since the water level value information can be obtained simultaneously, the normality of the water level value can also be confirmed at the same time, which leads to further work efficiency improvement.

(B) Other Embodiments In the above-described embodiment, various modified embodiments are mentioned, but the present invention can be applied to the following modified embodiments.

  (B-1) In the embodiment described above, the case where wireless communication is performed between one water level sensor wireless terminal 1 and one management terminal 2 has been exemplified.

  However, the management terminal 2 can wirelessly communicate with a plurality of water level sensor wireless terminals 1, acquires information necessary for adjustment at the time of installation from each water level sensor wireless terminal 1, and receives waves in each water level sensor wireless terminal 1. The received wave waveform may be displayed. For example, by using multi-hop wireless communication technology, it is possible to collect information (for example, received wave waveform data, water level value, etc.) necessary at the time of installation from each water level sensor wireless terminal 1 to the management terminal 2. The information required at the time of installation of each water level sensor wireless terminal 1 is associated with the identification information of each water level sensor wireless terminal 1 and managed to display received wave waveforms, water level values, etc. for each water level sensor wireless terminal. May be

  Thus, conventionally, the administrator instructed the operator who installs one ultrasonic water level gauge to adjust the installation of the ultrasonic water level gauge, but a plurality of operations for installing the ultrasonic water level gauge Adjustment instructions can be issued in parallel to each of the persons, improving work efficiency.

  (B-2) In the embodiment mentioned above, the case where the present invention was applied to the measuring device in which the ultrasonic water level gauge which measures the water level of a river has a wireless communication function was illustrated.

  However, ultrasonic water gauges are not limited to the measurement of river water levels. The application is not limited to the water level of a river, as long as it measures the position of a viewing surface such as a liquid level. For example, the level of oil stored in the oil tank may be measured or tailed. In addition, the observation side is not limited to the liquid level, and may be used to measure the amount of snowfall, or may be used for observation of soil and the like.

  Moreover, it is not limited to an ultrasonic water level meter, The water level meter using an electromagnetic wave may be used.

DESCRIPTION OF SYMBOLS 10 Water level meter radio | wireless monitor system, 1 ... Water level sensor wireless terminal, 2 ... Management terminal, 11 ... Ultrasonic sensor part, 12 ... Ultrasonic wave transmission / reception part, 13 ... Temperature sensor part, 14 ... Control part, 15 ... Wireless communication 16: power supply unit 21: control unit 22: display unit 23: wireless communication unit.

Claims (8)

Measuring means for transmitting a waveform signal of a predetermined frequency to the viewing side, receiving a reflected wave reflected on the viewing side, and measuring the position of the viewing side;
Signal forming means for forming a signal including information necessary for adjustment at the time of installation of the measuring means;
And a wireless communication means for wirelessly communicating the signal formed by the signal forming means. The signal forming means converts at least the received wave into a digital form,
The measurement apparatus according to claim 1, wherein the signal formed by the signal formation means includes reception waveform data obtained by digital conversion of the reception waveform. The measurement unit measures the position of the observation side based on the transmission timing of the waveform signal and the reception timing of the reflected wave;
The measuring apparatus according to claim 1 or 2, wherein the signal formed by the signal forming means includes the position of the viewing side.   The measuring apparatus according to any one of claims 1 to 3, wherein the measuring means is an ultrasonic water level gauge which measures a water level using an ultrasonic wave. Wireless communication means for receiving a signal including information necessary for adjustment at the time of installation of the measuring device for measuring the position of the viewing side;
Information restoration means for restoring information necessary for adjustment at the time of installation of the measuring apparatus included in the received signal;
And monitoring means for outputting information necessary for adjustment at the time of installation of the restored measuring device.   The monitoring device according to claim 5, wherein the information necessary for adjustment at the time of installation of the restored measuring device includes a received wave waveform reflected by the observation side and received by the measuring device.   The monitoring device according to claim 5 or 6, wherein the information necessary for adjustment at the time of installation of the restored measuring device includes the position of the observation side obtained by the measuring device. One or more measurement devices according to any one of claims 1 to 3;
A monitoring device monitoring system comprising the monitoring device according to any one of claims 4 to 7.

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