CN108181661B - Automatic monitor for geological disasters - Google Patents
Automatic monitor for geological disasters Download PDFInfo
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- CN108181661B CN108181661B CN201810121231.6A CN201810121231A CN108181661B CN 108181661 B CN108181661 B CN 108181661B CN 201810121231 A CN201810121231 A CN 201810121231A CN 108181661 B CN108181661 B CN 108181661B
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- 238000013480 data collection Methods 0.000 claims 2
- 230000002457 bidirectional effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 10
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- 230000009977 dual effect Effects 0.000 description 3
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- OIGNJSKKLXVSLS-VWUMJDOOSA-N prednisolone Chemical compound O=C1C=C[C@]2(C)[C@H]3[C@@H](O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 OIGNJSKKLXVSLS-VWUMJDOOSA-N 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/38—Processing data, e.g. for analysis, for interpretation, for correction
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Abstract
The invention relates to an automatic monitor for geological disasters, which comprises a data acquisition terminal, a data transceiver, a controller, a wireless circuit, a SIM card circuit and a clock circuit, wherein the data transceiver is connected with the data acquisition terminal; the clock circuit is electrically connected with the controller, the data acquisition terminal is electrically connected with the controller through the data transceiver, the SIM card circuit is electrically connected with the controller through the wireless circuit, and the wireless circuit is in wireless connection with the remote terminal; the geological disaster automatic monitor provided by the invention realizes the bidirectional transmission of data acquisition commands and data acquisition results through the data transceiver; the identity of the data acquisition terminal is identified through the SIM card circuit; the wireless transmission of monitoring information is realized through the wireless circuit, and the data acquisition time and the data transmission time are controlled through the clock circuit, so that the stable and effective automatic monitoring of geological disasters can be realized.
Description
Technical Field
The invention relates to the technical field of geological disaster monitoring, in particular to an automatic monitor for geological disasters.
Background
The existing geological disaster monitor has the following problems: the data in the data transmission process is easy to be interrupted, the stable automatic monitoring for a long time can not be realized, the cost is too high, and the like.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art, and provides an automatic monitor for geological disasters, which can realize stable automatic monitoring and has reliable data transmission.
The technical scheme for solving the technical problems is as follows: an automatic monitor for geological disasters comprises a data acquisition terminal, a data transceiver, a controller, a wireless circuit, a SIM card circuit and a clock circuit;
the clock circuit is electrically connected with the controller, the data acquisition terminal is electrically connected with the controller through the data transceiver, the SIM card circuit is electrically connected with the controller through the wireless circuit, and the wireless circuit is in wireless connection with the remote terminal;
the clock circuit is used for providing a clock signal for the controller; the controller is used for judging data acquisition time according to the clock signal and sending a data acquisition command to the data acquisition terminal through the data transceiver; the data acquisition terminal is used for acquiring geological disaster data according to the data acquisition command and transmitting the geological disaster data to the controller through the data transceiver; the controller is also used for generating monitoring information according to the geological disaster data and transmitting the monitoring information to the wireless circuit; the SIM card circuit is used for providing the identity identification information of the data acquisition terminal and transmitting the identity identification information to the wireless circuit; the controller is also used for judging the data transmission time according to the clock signal and sending a data transmission command to the wireless circuit; the wireless circuit is used for sending the monitoring information and the identification information to the remote terminal according to the data transmission command.
The beneficial effects of the invention are as follows: the data transceiver is used for realizing data acquisition and data feedback, and realizing bidirectional transmission of data acquisition commands and geological disaster data; the identity of the data acquisition terminal is identified through the SIM card circuit; the wireless transmission of the identity identification information and the corresponding monitoring information is realized through the wireless circuit, the collection and the summarization of the monitoring result are realized, and the automatic monitoring is realized; the clock circuit is used for controlling the data acquisition time and the data transmission time, so that the data acquisition and the data transmission are accurately controlled.
Based on the technical scheme, the invention can also be improved as follows:
further: the data acquisition terminal comprises a vibrating wire type sensor and a vibration exciting and vibration picking circuit;
the vibrating wire sensor is electrically connected with the data transceiver through the excitation vibration pickup circuit.
The beneficial effects of the above-mentioned further scheme are: the sensor related to geological disaster monitoring comprises three types of vibrating wire type sensors, a resistance type sensor and a 485 signal type sensor, wherein the vibrating wire type sensors output vibrating wire signals, and the vibrating wire signals can be communicated with the data transceiver only through an excitation vibration pickup circuit.
Further: the excitation vibration pickup circuit comprises an analog switch, an excitation amplifier, a vibration pickup amplifier and a trigger;
the excitation amplifier and the vibration pickup amplifier are electrically connected with the analog switch, and the analog switch is electrically connected with the controller;
the output end of the vibrating wire sensor is electrically connected with the input end of the vibration pickup amplifier, and the output end of the vibration pickup amplifier is electrically connected with the input end of the data transceiver through the trigger; the output end of the data transceiver is electrically connected with the input end of the excitation amplifier, and the output end of the excitation amplifier is electrically connected with the input end of the vibrating wire sensor.
The beneficial effects of the above-mentioned further scheme are: the data transceiver receives the excitation signal sent by the controller and sends the excitation signal to the excitation amplifier, the excitation amplifier amplifies the excitation signal, the amplified excitation signal acts on the data acquisition terminal, and the data acquisition terminal starts data acquisition; after the acquisition is completed, the vibration pickup amplifier receives the data acquisition result and sends the data acquisition result to the controller through the data transceiver. The analog switch realizes the conversion of the excitation amplifier and the vibration pickup amplifier, and the controller controls the state of the analog switch, so as to control whether the excitation or the vibration pickup is performed.
Further: the data acquisition terminal comprises a resistance type sensor and a voltage dividing circuit;
the resistive sensor is electrically connected with the data transceiver through the voltage dividing circuit.
The beneficial effects of the above-mentioned further scheme are: the sensor related to geological disaster monitoring comprises three types of vibrating wire type sensors, a resistance type sensor and a 485 signal type sensor, wherein the resistance type sensor outputs voltage signals, and the voltage signals can be communicated with the data transceiver through voltage division by the voltage division circuit.
Further: the data acquisition terminal comprises a 485 signal type sensor, and the 485 signal type sensor is directly and electrically connected with the data transceiver.
The beneficial effects of the above-mentioned further scheme are: the sensors related to geological disaster monitoring comprise three types of vibrating wire type sensors, resistance type sensors and 485 signal type sensors, and the 485 signal type sensors can be directly communicated with a data transceiver.
Further: the data acquisition device further comprises a relay circuit for detecting the data acquisition state, and the data acquisition terminal, the data transceiver and the controller are electrically connected with the relay circuit.
The beneficial effects of the above-mentioned further scheme are: the relay circuit is added to detect the acquisition state of the data acquisition terminal and feed the acquisition state back to the controller, so that the controller can monitor the working state of the data acquisition terminal better.
Further: the relay circuit comprises a relay and a diode, one end of a coil of the relay is electrically connected with the data acquisition terminal, the other end of the coil is electrically connected with a cathode of the diode, an anode of the diode is grounded, a movable contact of a contact switch of the relay is electrically connected with the data acquisition terminal, and two static contacts of the contact switch are respectively electrically connected with the controller and the data transceiver.
The beneficial effects of the above-mentioned further scheme are: when the data acquisition terminal does not acquire data, the movable contact of the contact switch is electrically connected with the controller, and when the data acquisition terminal acquires data, the coil is electrified, the contact switch is in a state of conversion, and the movable contact is electrically connected with the data transceiver, so that the transmission of a data acquisition result is realized.
Further: the automatic monitor for geological disasters further comprises a test key capable of manually collecting data, one end of the test key is electrically connected with a power supply, and the other end of the test key is electrically connected with the controller.
The beneficial effects of the above-mentioned further scheme are: the test key is used for debugging and installing the tester, the test key is pressed, the controller receives the test signal, and the data acquisition terminal is controlled to immediately acquire data so as to test whether the monitor can work normally.
Further: the geological disaster automatic monitor further comprises a serial-to-parallel circuit, the data acquisition terminal comprises a plurality of sensors, the sensors are electrically connected with the serial-to-parallel circuit, and the serial-to-parallel circuit is electrically connected with the data transceiver.
The beneficial effects of the above-mentioned further scheme are: the plurality of sensors can collect various data at the same time, so that accurate analysis is convenient to carry out on geological disasters, and the serial-to-parallel circuit realizes communication between the plurality of sensors and the data transceiver.
Further: the geological disaster automatic monitor further comprises an external crystal oscillator circuit for providing crystal oscillator signals for the controller, and the external crystal oscillator circuit is electrically connected with the controller.
The beneficial effects of the above-mentioned further scheme are: the crystal oscillator signal inside the controller is unstable, and an external crystal oscillator circuit is added to provide stable and reliable crystal oscillator signals for the controller.
Drawings
Fig. 1 is a schematic circuit diagram of an automatic monitor for geological disasters;
fig. 2 is a schematic circuit diagram of a vibrating wire sensor, a resistor sensor and a 485 signal sensor of the geological disaster automatic monitor provided by the invention;
fig. 3 is a schematic circuit diagram of a vibration exciting and picking circuit of the automatic geological disaster monitor;
fig. 4 is a circuit diagram of a relay circuit of the automatic geological disaster monitor provided by the invention;
FIG. 5 is a circuit diagram of a test button of an automated geological disaster monitor provided by the invention;
fig. 6 is a circuit diagram of a serial-to-parallel circuit of an automatic monitor for geological disasters.
In the drawings, the list of components represented by the various numbers is as follows:
1. the device comprises a data acquisition terminal, 11, a vibrating wire type sensor, 111, a sensor, 12, a resistance type sensor, 13, 485 signal type sensor, 2, a data transceiver, 3, a controller, 4, a wireless circuit, 5, a SIM card circuit, 6, a clock circuit, 7, a voltage dividing circuit, 8, a vibration excitation vibration pickup circuit, 81, an analog switch, 82, a vibration excitation amplifier, 83, a vibration pickup amplifier, 84, a trigger, 91, a relay circuit, 92 and a serial-to-parallel circuit.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
The present invention will be described below with reference to the accompanying drawings.
As shown in fig. 1, an automatic monitor for geological disasters (hereinafter referred to as "monitor") provided by the embodiment of the present invention includes a data acquisition terminal 1, a data transceiver 2, a controller 3, a wireless circuit 4, a SIM card circuit 5, and a clock circuit 6;
the clock circuit 6 is electrically connected with the controller 3, the data acquisition terminal 1 is electrically connected with the controller 3 through the data transceiver 2, the SIM card circuit 5 is electrically connected with the controller 3 through the wireless circuit 4, and the wireless circuit 4 is wirelessly connected with a remote terminal (not shown in the figure);
the clock circuit 6 is configured to provide a clock signal to the controller 3; the controller 3 is configured to determine a data acquisition opportunity according to the clock signal, and send a data acquisition command to the data acquisition terminal 1 through the data transceiver 2; the data acquisition terminal 1 is used for acquiring geological disaster data according to the data acquisition command and transmitting the geological disaster data to the controller 3 through the data transceiver 2; the controller 3 is further configured to generate monitoring information according to the geological disaster data, and transmit the monitoring information to the wireless circuit 4; the SIM card circuit 5 is configured to provide identification information of the data acquisition terminal 1, and transmit the identification information to the wireless circuit 4; the controller 3 is further configured to determine a data transmission opportunity according to the clock signal, and send a data transmission command to the wireless circuit 4; the wireless circuit 4 is configured to send the monitoring information and the identification information to the remote terminal according to the data transmission command.
The geological disaster automatic monitor provided by the embodiment of the invention has the following working process: the clock circuit 6 judges the data acquisition time, when the data acquisition time arrives, the controller 3 sends a data acquisition command to the data acquisition terminal 1 through the data transceiver 2, the data acquisition terminal 1 performs data acquisition, after the acquisition is completed, the data acquisition terminal 1 transmits geological disaster data to the controller 3 through the data transceiver 2, the controller 3 receives the geological disaster data and calculates to obtain monitoring information, the SIM card circuit 5 provides the identity identification information of the data acquisition terminal 1 and is used for distinguishing different monitors, and the controller 3 transmits the monitoring information and the identity identification information to a remote terminal through the wireless circuit 4. The controller 3 determines whether the radio transmission process is successful. And if the wireless transmission is successful, ending the monitoring process, and waiting for the arrival of the next data acquisition opportunity. If the radio transmission fails, the controller 3 controls the radio circuit 4 to repeat the radio transmission and count the repetition number, and when the repetition number does not reach the set maximum number and the radio transmission is successful, the repetition process is ended, and the next arrival of the data acquisition opportunity is waited. And ending the repeated process when the repeated times reach the set maximum times and the wireless transmission still fails, and waiting for the arrival of the next data acquisition time.
Specifically, the data acquisition terminal 1 comprises one or more of an earth pressure gauge, a rock stress gauge, a crack gauge, a steel bar stress gauge, a 485 type inclinometer, a level bar and a pull rope sensor.
Specifically, in this embodiment, the SP3485 chip is selected as the data transceiver 2, and the controller 3 transmits/receives data to/from the SP3485 chip through the serial port. The operating voltage of the SP3485 chip was 3.3V.
Specifically, in this embodiment, an STM32F103RB chip is selected as the controller 3, where the STM32F103RB chip is a core-M3 core-based microcontroller, and has a working frequency of 72MHz, and a built-in high-speed memory, including a 128K byte flash memory and a 20K byte SRAM. STM32F103RB chips have a rich set of enhanced I/O ports and peripherals coupled to both APB buses. The STM32F103RB chip further comprises 2 12-bit ADCs, 3 general 16-bit timers and 1 PWM timer, and further comprises a plurality of standard communication interfaces: 2I 2C interfaces, 2 SPI interfaces, 3 USART interfaces, 1 USB interface and 1 CAN interface.
Specifically, in this embodiment, a sim800C chip is selected as the wireless circuit 4, the controller 3 communicates with the SIM800C chip through a serial port, and the controller 3 controls the SIM800C chip through an AT instruction to complete the wireless transmission process.
Specifically, the SIM card circuit 5 may be a SIM card circuit of the related art.
Specifically, in this embodiment, DS3231 is selected as the clock circuit 6, and the ds3231 chip is a low-cost and high-precision I2C clock circuit, and has a temperature compensated integrated crystal oscillator. The DS3231 chip includes a battery input terminal, which can be powered by a battery, so that accurate timing can be maintained when the main power supply is disconnected. The integrated crystal oscillator improves the long term accuracy of the DS3231 chip and reduces the number of components of the clock circuit 6.
According to the invention, the data transceiver 2 is used for realizing the bidirectional transmission of data acquisition commands and data acquisition results, and realizing the effective control of data acquisition; the identification of the data acquisition terminal 1 is realized through the SIM card circuit 5, so that the simultaneous monitoring of multiple data acquisition terminals in multiple places can be realized. The wireless circuit 4 is used for realizing the wireless transmission of the monitoring information and the identity identification information, the collection and the summarization of the monitoring information and the technical effect of automatic monitoring; the clock circuit 6 is used for accurately controlling the data acquisition time and the data transmission time, so that the accurate control of data acquisition and transmission is realized, the successful transmission of data to a remote terminal is ensured, the labor cost of manual operation is saved, and the measurement precision and accuracy are improved. The invention realizes the integration of data transmission and data acquisition, and the clock circuit 6 avoids the chaotic phenomenon of data transmission, acquisition and wireless transmission, and has long standby time.
Preferably, as shown in fig. 2, the data acquisition terminal 1 includes a vibrating wire sensor 11 and a vibration pickup circuit 8;
the vibrating wire sensor 11 is electrically connected with the data transceiver 2 through the exciting vibration pickup circuit 8.
The data acquisition terminal 1 comprises one or more sensors. The sensors related to geological disasters mainly comprise a soil pressure gauge, a rock stress gauge, a crack gauge, a steel bar stress gauge, a 485 type inclinometer, a level bar, a pull rope sensor and the like, wherein the sensors are divided into three types of vibrating wire type sensors 11, resistance type sensors 12 and 485 signal type sensors 13, the vibrating wire type sensors 11 output vibrating wire signals, and the vibrating wire signals can be communicated with the data transceiver 2 by being converted by the vibration exciting vibration pickup circuit 8.
There is a linear relationship between the vibrating wire signal output by the vibrating wire sensor 11 and the variable measured by the vibrating wire sensor 11, and the controller 3 can calculate the measured variable based on the linear relationship. The following are illustrated: the vibration string signal delta F output by the vibration string type rock stress meter and the measured variable stress value sigma meet the following sigma=K delta F+b delta T, wherein K is the calibration coefficient of the stress meter; b is the temperature correction coefficient of the stress meter; deltaT is the variation of the real-time temperature measurement of the strain gauge from the reference value. After the controller 3 receives the vibrating wire signal output by the vibrating wire rock stress meter, the stress value can be calculated according to the above formula.
Preferably, as shown in fig. 3, the exciting vibration pick-up circuit 8 includes an analog switch 81, an exciting amplifier 82, a vibration pick-up amplifier 83 and a trigger 84;
the excitation amplifier 82 and the vibration pickup amplifier 83 are electrically connected to the analog switch 81, and the analog switch 81 is electrically connected to the controller 3;
the output end of the vibrating wire sensor 11 is electrically connected with the input end of the vibration pickup amplifier 83, and the output end of the vibration pickup amplifier 83 is electrically connected with the input end of the data transceiver 2 through the trigger 84; the output end of the data transceiver 2 is electrically connected with the input end of the excitation amplifier 82, and the output end of the excitation amplifier 82 is electrically connected with the input end of the vibrating wire sensor 11.
Because the vibrating wire sensor 11 is a single-coil sensor, the exciting coil and the vibration pickup coil of the vibrating wire sensor 11 are the same coil, and the exciting and vibration pickup can only be carried out in a time-sharing manner, and the vibration is firstly excited and then picked up. Since the excitation circuit is different from the vibration pickup circuit, an analog switch needs to be provided to switch the excitation circuit and the vibration pickup circuit.
The operating principle of the excitation vibration pickup circuit 8 is as follows: when data acquisition is needed, the controller 3 controls the state of the analog switch 81, the excitation amplifier 82 is connected into a circuit, the data transceiver 2 is electrically connected with the data acquisition terminal 1 through the excitation amplifier 82, the controller 3 sends excitation signals to the data transceiver 2, the data transceiver 2 sends the excitation signals to the excitation amplifier 82, the excitation signals are amplified by the excitation amplifier 82 and then transmitted to the data acquisition terminal 1, and the data acquisition terminal 1 is excited and started and performs data acquisition; after the data acquisition terminal 1 is acquired, the controller 3 controls the analog switch 81 to switch in a state, the vibration pickup amplifier 83 is connected to a circuit, the data transceiver 2 is electrically connected with the data acquisition terminal 1 through the vibration pickup amplifier 83 and the trigger 84, the data acquisition terminal 1 transmits a data acquisition result to the vibration pickup amplifier 83, the vibration pickup amplifier 83 amplifies the data acquisition result, the trigger 84 converts the amplified data acquisition result into a square wave signal so as to be recognized by the controller 3, the data transceiver 2 receives the square wave signal and transmits the square wave signal to the controller 3, and the controller 3 calculates the result through the square wave signal.
Specifically, in this embodiment, the TS12a12511 chip is selected as the analog switch 81, and the TS12a12511 chip is a single-pole double-throw analog switch capable of transmitting a signal with a voltage value of 0-12V or-6V. The bidirectional conduction performance is the same, the low conduction resistance is 5 omega, the channel matching resistance is less than 1 omega, and the maximum current consumption is less than 1 mu A.
Specifically, in this embodiment, the LM358 chip is selected as the excitation amplifier 82, and the variable frequency excitation signal generated by the controller 3 is amplified, so as to ensure that the data acquisition terminal 1 can reliably start vibrating. The LM358 chip is a dual operational amplifier, comprising two independent, high gain, internal frequency compensated dual operational amplifiers, suitable for single power supply with wide power supply voltage range, and also suitable for dual power supply operation mode. Its range of use includes sensors, dc gain modules and all other applications where an operational amplifier is needed for power supply from a single power source.
Specifically, in this embodiment, an AD620 chip and an OP07 chip are selected as the vibration pickup amplifier 83. The data acquisition result signals fed back by the data acquisition terminal 1 are very weak and have more interference, so that a filtering and amplifying circuit is needed to be adopted to realize the pickup of the signals of the data acquisition terminal 1. First, the high-precision amplifier AD620 chip is adopted for primary amplification, so that the signal identification is facilitated. The second-stage amplification adopts OP07 chip amplification.
The AD620 chip is a low-cost and high-precision instrument amplifier, and only one external resistor is needed to set the gain, and the gain range is 1 to 1000. The AD620 chip has the characteristics of high precision (maximum nonlinearity of 40 ppm), low offset voltage (maximum offset voltage of 50 mu V) and low offset drift (maximum offset drift of 0.6 mu V/. Degree.C). It also has the characteristics of low noise, low input bias current and low power consumption. AD620 has low input voltage noise of 9nV/Hz at 1kHz, the peak-to-peak value of noise in the frequency band from 0.1Hz to 10Hz is 0.28 mu V, and the input current noise is 0.1pA/Hz, so that the effect of selecting an OP07 chip as a pre-amplifier is good.
The OP07 chip is a bipolar operational amplifier with low noise and non-chopper stabilization. Since the OP07 chip has a very low input offset voltage, the maximum input offset voltage is 25 μv, the OP07 chip does not require additional zeroing measures in many applications. The OP07 chip has the characteristics of low input bias current and high open loop gain, and the characteristics of low offset voltage and high open loop gain enable the OP07 chip to be particularly suitable for measuring equipment needing high gain and sensors needing weak signal amplification.
Specifically, in this embodiment, the LM358 chip is selected as the 74HC14 chip as the trigger 84. The 74HC14 chip is a high-speed CMOS device, and the 74HC14 pin is compatible with low-power-consumption Schottky TTL and LSTTL series. The 74HC14 chip was compliant with JEDEC Standard No.7A. The 74HC14 chip realizes a 6-way Schmitt trigger inverter, and can convert a slowly-changing input signal into a clear and jitter-free output signal.
Preferably, as shown in fig. 2, the data acquisition terminal 1 includes a resistive sensor 12 and a voltage dividing circuit 7;
the resistive sensor 12 is electrically connected to the data transceiver 2 via the voltage divider 7.
The resistive sensor 12 outputs a voltage signal, the voltage signal is divided by a voltage dividing circuit and can be communicated with the data transceiver 2, and the voltage dividing circuit 7 adopts a conventional common voltage dividing circuit.
There is also a linear relationship between the voltage signal output by the resistive sensor 12 and the variable measured by the resistive sensor 12. For example, there is a 1:1 relationship between the voltage signal output by the resistance-type pull rope crack meter and the crack length value, that is, 1mv corresponds to 1mm length, and the controller 3 can calculate the crack length value after receiving the voltage signal of the resistance-type pull rope crack meter.
Preferably, as shown in fig. 3, the data acquisition terminal 1 includes a 485 signal type sensor 13, and the 485 signal type sensor 13 is directly and electrically connected with the data transceiver 2.
The 485 signal type sensor 13 outputs a 485 signal, and the 485 signal can be directly communicated with the data transceiver 2.
Preferably, as shown in fig. 4, the monitor further includes a relay circuit 91 for detecting a data acquisition state, and the data acquisition terminal 1, the data transceiver 2 and the controller 3 are all electrically connected to the relay circuit 91.
The relay circuit 91 is added to detect the acquisition state of the data acquisition terminal 1.
Preferably, as shown in fig. 4, the relay circuit 91 includes a relay and a diode D1, one end of a coil KM of the relay is electrically connected with the data acquisition terminal 1, the other end of the coil KM is electrically connected with a cathode of the diode D1, an anode of the diode D1 is grounded, a movable contact of a contact switch KM1 of the relay is electrically connected with the data acquisition terminal 1, and two stationary contacts of the contact switch KM1 are respectively electrically connected with the controller 3 and the data transceiver 2.
In the embodiment, the relay circuit 91 is added, whether the data acquisition terminal 1 is in a working state is tested by using the coil KM, when the data acquisition terminal 1 is in a non-working state, the data acquisition terminal 1 is electrically connected with one I/O interface of the controller 3, and the controller 3 can judge that the data acquisition terminal 1 is in the non-working state through the I/O interface; when the data acquisition terminal 1 is switched to a working state, the coil KM is electrified, the contact switch KM1 is switched to a state, so that the data acquisition terminal 1 is electrically connected with the data transceiver 2, the data acquisition terminal 1 transmits a data acquisition result to the other I/O interface of the controller 3 through the data transceiver 2 after finishing data acquisition, and the controller 3 can judge that the data acquisition terminal 1 is in the working state through the I/O interface.
Preferably, as shown in fig. 5, the device further comprises a test KEY1 capable of manually collecting data, one end of the test KEY1 is electrically connected with the power supply 7, and the other end of the test KEY1 is electrically connected with the controller 3.
The test KEY1 is used for debugging and installing the monitor, the test KEY1 is pressed, the controller 3 receives a test signal, and the controller 3 immediately performs data acquisition on the data acquisition terminal 1 so as to test whether the monitor can work normally.
Preferably, as shown in fig. 6, the monitor further includes a serial-to-parallel circuit 92, the data acquisition terminal 1 includes a plurality of sensors 111, and a plurality of the sensors 111 are electrically connected to the serial-to-parallel circuit 92, and the serial-to-parallel circuit 92 is electrically connected to the data transceiver 2.
Specifically, when the plurality of sensors 111 includes the vibrating wire type sensor 11, each vibrating wire type sensor 11 is electrically connected to the serial-to-parallel circuit 92 through one excitation vibration pickup circuit 8, respectively, and similarly, when the plurality of sensors 111 includes the resistive type sensor 12, each resistive type sensor 12 is electrically connected to the serial-to-parallel circuit 92 through one voltage dividing circuit 121, respectively.
The data acquisition terminal 1 of the embodiment of the invention integrates a plurality of sensors, realizes simultaneous acquisition of various geological disaster data, is convenient for accurately analyzing the geological disasters, and realizes communication between the plurality of sensors 111 and the data transceiver 2 by a serial-to-parallel circuit.
Specifically, in this embodiment, the serial-to-parallel circuit 92 is implemented by using a 74HC595 chip, where the 74HC595 chip includes an 8-bit parallel data output pin, so that communication between the 8 data acquisition terminals 1 and the data transceiver 2 can be simultaneously implemented.
Preferably, the monitor further comprises an external crystal oscillator circuit (not shown) for providing a crystal oscillator signal to the controller 3, and the external crystal oscillator circuit is electrically connected to the controller. The internal crystal oscillator error of the controller 3 is greatly unstable, and an external crystal oscillator circuit is added to provide stable crystal oscillator for the controller 3.
Preferably, the monitor further comprises a storage circuit (not shown in the figure) for storing configuration information of the controller, and the storage circuit is electrically connected with the controller 3 and is used for storing configuration data of the controller 3, so as to prevent the configuration data of the controller 3 from being accidentally lost.
Specifically, the Flash memory circuit of the present embodiment employs an SST25VF016B chip, and the SST25VF016B chip communicates with the controller 3 through the SPI bus protocol.
Preferably, a reset circuit can be added, and the reset circuit is electrically connected with the controller 3. When the monitor breaks down and needs to be reset, the reset circuit is started, and the monitor is reset and operates again.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (8)
1. The geological disaster automatic monitor is characterized by comprising a data acquisition terminal, a data transceiver, a controller, a wireless circuit, a SIM card circuit and a clock circuit;
the clock circuit is electrically connected with the controller, the data acquisition terminal is electrically connected with the controller through the data transceiver, the SIM card circuit is electrically connected with the controller through the wireless circuit, and the wireless circuit is in wireless connection with the remote terminal;
the clock circuit is used for providing a clock signal for the controller;
the controller is used for judging data acquisition time according to the clock signal and sending a data acquisition command to the data acquisition terminal through the data transceiver;
the data acquisition terminal is used for acquiring geological disaster data according to the data acquisition command and transmitting the geological disaster data to the controller through the data transceiver;
the controller is also used for generating monitoring information according to the geological disaster data and transmitting the monitoring information to the wireless circuit;
the SIM card circuit is used for providing the identity identification information of the data acquisition terminal and transmitting the identity identification information to the wireless circuit;
the controller is also used for judging the data transmission time according to the clock signal and sending a data transmission command to the wireless circuit;
the wireless circuit is used for sending the monitoring information and the identity identification information to the remote terminal according to the data transmission command;
the data acquisition terminal comprises a vibrating wire type sensor and a vibration exciting and vibration picking circuit;
the vibrating wire sensor is electrically connected with the data transceiver through the excitation vibration pickup circuit;
the excitation vibration pickup circuit comprises an analog switch, an excitation amplifier, a vibration pickup amplifier and a trigger;
the excitation amplifier and the vibration pickup amplifier are electrically connected with the analog switch, and the analog switch is electrically connected with the controller;
the output end of the vibrating wire sensor is electrically connected with the input end of the vibration pickup amplifier, and the output end of the vibration pickup amplifier is electrically connected with the input end of the data transceiver through the trigger; the output end of the data transceiver is electrically connected with the input end of the excitation amplifier, and the output end of the excitation amplifier is electrically connected with the input end of the vibrating wire sensor.
2. The automated geologic hazard monitor of claim 1, wherein the data acquisition terminal comprises a resistive sensor and a voltage divider circuit;
the resistive sensor is electrically connected with the data transceiver through the voltage dividing circuit.
3. The automated geologic hazard monitor of claim 1, wherein the data acquisition terminal comprises a 485 signal sensor, the 485 signal sensor being directly electrically connected to the data transceiver.
4. The automated geological disaster monitor of claim 1, further comprising a relay circuit for detecting a status of data collection, wherein the data collection terminal, the data transceiver and the controller are electrically connected to the relay circuit.
5. The automated geological disaster monitor of claim 4, wherein the relay circuit comprises a relay and a diode, one end of a coil of the relay is electrically connected with the data acquisition terminal, the other end of the coil is electrically connected with a cathode of the diode, an anode of the diode is grounded, a movable contact of a contact switch of the relay is electrically connected with the data acquisition terminal, and two stationary contacts of the contact switch are respectively electrically connected with the controller and the data transceiver.
6. The automated geological disaster monitor of claim 1, further comprising a test button capable of manually collecting data, wherein one end of the test button is electrically connected to a power source, and the other end of the test button is electrically connected to the controller.
7. The automated geological disaster monitor of claim 1, further comprising a serial-to-parallel circuit, wherein the data acquisition terminal comprises a plurality of sensors, wherein a plurality of the sensors are electrically connected to the serial-to-parallel circuit, and wherein the serial-to-parallel circuit is electrically connected to the data transceiver.
8. The automated geologic hazard monitor of claim 1, further comprising an external crystal oscillator circuit that provides a crystal oscillator signal to the controller, the external crystal oscillator circuit being electrically connected to the controller.
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| CN201810121231.6A CN108181661B (en) | 2018-02-07 | 2018-02-07 | Automatic monitor for geological disasters |
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| CN201810121231.6A CN108181661B (en) | 2018-02-07 | 2018-02-07 | Automatic monitor for geological disasters |
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| CN108181661B true CN108181661B (en) | 2024-04-16 |
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| CN109471452A (en) * | 2018-10-09 | 2019-03-15 | 国电南瑞科技股份有限公司 | Remote engineering and geological disaster safety monitoring system and method based on unmanned plane |
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