CN114383657A - Multifunctional mining sensor detection system - Google Patents
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Abstract
The invention relates to a multifunctional mine sensor detection system, which comprises a test tool, a detection host and an upper computer, wherein the test tool is used for detecting the mine sensor; the upper computer is used for automatically identifying the sensor type of the mining sensor, providing a corresponding test project and configuring test parameters; the test tool is used for applying corresponding physical quantity to the mining sensor; the detection host is used for generating a power supply corresponding to voltage and current under the control of test engineering and test parameters to supply power to the mining sensor and collecting induction signals generated by the mining sensor under the action of corresponding physical quantities. In the invention, the upper computer provides a corresponding test project according to the sensor type of the mining sensor, and configures test parameters for the test project so that the detection host generates a power supply required by different types of sensors during working; the invention can detect various different types of mine sensors by only one set of system, has less test equipment and is easy to manage.
Description
Technical Field
The invention relates to the field of sensor detection, in particular to a multifunctional mining sensor detection system.
Background
There are many types of sensors for mines, such as pressure sensors, temperature sensors, position sensors, rotational speed sensors, and the like. At present, the detection of most mining sensors refers to the detection mode of a national safety production mining equipment detection and inspection center, most manufacturers in the industry lag behind the detection of mining products, or detect the mining products one by one, or each product is configured with different testing equipment, such as a pressure sensor detection device, a temperature sensor detection device, a rotating speed table tester and the like; that is, each type of sensor needs to be equipped with one sensor detection device, and different detection devices are needed for different sensors, so that more test equipment is needed, and the management is not easy.
Disclosure of Invention
The invention aims to solve the technical problem of providing a multifunctional mine sensor detection system, which can detect various mine sensors by adopting one set of system, has less test equipment and is easy to manage.
The technical scheme for solving the technical problems is as follows: a multifunctional mining sensor detection system comprises a test tool, a detection host and an upper computer;
the upper computer is used for inputting sensor information of a mine sensor to be detected, automatically identifying the sensor type of the mine sensor according to the sensor information, providing a corresponding test project according to the sensor type, and configuring test parameters for the test project;
the test tool is used for applying corresponding physical quantity to the mining sensor according to the type of the sensor;
the detection host is used for generating a power supply corresponding to voltage and current under the control of a test project provided by the upper computer and configured test parameters to supply power to the mining sensor, acquiring an induction signal generated by the mining sensor under the action of corresponding physical quantity, and uploading the induction signal to the upper computer;
the upper computer is used for processing the induction signals transmitted by the detection host computer to obtain detection result data and storing the detection result data.
The invention has the beneficial effects that: in the multifunctional mining sensor detection system, an upper computer provides corresponding test engineering according to the sensor type of the mining sensor, adapts to various types of mining sensors such as rotating speed, position, temperature, pressure and the like, configures test parameters for the test engineering to enable a detection host to generate power supplies required by different types of sensors during working, automatically acquires induction signals generated by the mining sensor under the action of corresponding physical quantities applied by a test tool through the detection host, and obtains detection result data through signal processing; the invention can detect various different types of mine sensors by only one set of system, has less test equipment and is easy to manage.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the upper computer is provided with a server and is also used for uploading the detection result data to the server.
The beneficial effect of adopting the further scheme is that: the upper computer is provided with a server special for production, test data is stored, quality data tracing is provided, and data are safe and reliable.
Further, the detection host comprises an intrinsic safety sensor signal conversion module, a non-intrinsic safety sensor signal conversion module, an MCU module, a CAN transceiver and a power module; the mining sensor comprises an intrinsic safety sensor and a non-intrinsic safety sensor, wherein the input end of a signal conversion module of the intrinsic safety sensor is connected with the signal output end of the intrinsic safety sensor, the input end of a signal conversion module of the non-intrinsic safety sensor is connected with the signal output end of the non-intrinsic safety sensor, the output end of the signal conversion module of the intrinsic safety sensor and the output end of the signal conversion module of the non-intrinsic safety sensor are both connected with a signal input interface of the MCU module, and a signal output interface of the MCU module is connected with the upper computer through the CAN transceiver; the input end of the power supply module is connected with a power supply, the controlled end of the power supply module is connected with the upper computer through the CAN transceiver, and the output end of the power supply module comprises an isolated power supply voltage output end and a non-isolated power supply voltage output end; the power module's non-isolation mains voltage output pass through non-ann sensor supply circuit with non-ann sensor electricity is connected, power module's non-isolation mains voltage output still with non-ann sensor signal transform module electricity is connected, power module's isolation mains voltage output respectively with the MCU module intrinsic safety sensor signal transform module and non-intrinsic safety sensor signal transform module electricity is connected, power module's isolation mains voltage output still pass through intrinsic safety sensor supply circuit with intrinsic safety sensor electricity is connected.
The beneficial effect of adopting the further scheme is that: the method comprises the steps that an internal power supply module of a host is detected to isolate an intrinsic safety power supply from an intrinsic safety power supply, and provide an intrinsic safety voltage and an intrinsic safety voltage, so that power supply requirements of different circuits during working are met; in addition, the signal conversion module of the non-intrinsic safety sensor is used as a test channel of the non-intrinsic safety sensor, and the signal conversion module of the intrinsic safety sensor is used as a test channel of the intrinsic safety sensor, so that the invention can detect the intrinsic safety sensor and the non-intrinsic safety sensor; the detection host and the upper computer are communicated through the CAN transceiver, and the communication speed is high and safe.
Further, the isolated power supply voltage output terminal of the power supply module comprises a first isolated power supply voltage output terminal and a second isolated power supply voltage output terminal; the first isolation power supply voltage output end of the power module passes through the intrinsic safety sensor power supply circuit and is electrically connected with the intrinsic safety sensor, the second isolation power supply voltage output end of the power module respectively connects with the MCU module, the intrinsic safety sensor signal transformation module and the non-intrinsic safety sensor signal transformation module, and the second isolation power supply voltage output end of the power module still passes through the intrinsic safety sensor power supply circuit and is electrically connected with the intrinsic safety sensor.
Further, the non-isolation voltage output by the non-isolation power supply voltage output end of the power supply module is 5V, the isolation voltage output by the first isolation power supply voltage output end of the power supply module is 15v.ex, and the isolation voltage output by the second isolation power supply voltage output end of the power supply module is 5 v.ex.
Further, the power supply module comprises a switching power supply, a first voltage conversion circuit, a voltage isolation and conversion circuit and a second voltage conversion circuit; the input end of the switch power supply is connected with a power supply, the output end of the switch power supply is electrically connected with the input end of the first voltage conversion circuit, and the output end of the first voltage conversion circuit is the non-isolated power supply voltage output end of the power supply module; the output end of the switch power supply is electrically connected with the input end of the voltage isolation and conversion circuit, and the output end of the voltage isolation and conversion circuit is the first isolation power supply voltage output end of the power supply module; the output end of the voltage isolation and conversion circuit is electrically connected with the input end of the second voltage conversion circuit, and the output end of the second voltage conversion circuit is the second isolation power supply voltage output end of the power supply module.
Further, the intrinsically safe sensor power supply circuit comprises a digital-to-analog conversion chip U1, a digital potentiometer U2 and a power amplifier U3; a VDD pin of the digital-to-analog conversion chip U1 is connected to a second isolated power supply voltage output end of the power supply module, a VOUTB pin and an LDAC pin of the digital-to-analog conversion chip U1 are correspondingly connected to a digital ground through a resistor R1 and a resistor R2, a VSS pin of the digital-to-analog conversion chip U1 is connected to the digital ground, a/CS pin, an SCK pin and an SDI pin of the digital-to-analog conversion chip U1 are connected to the upper computer through the CAN transceiver, and a VOUTA pin of the digital-to-analog conversion chip U1 is connected to a forward input end of the power amplifier U3 through a resistor R3; the negative input end of the power amplifier U3 is connected to digital ground through a resistor R4, the negative input end of the power amplifier U3 is connected to the V-power supply end of the power amplifier U3 through a resistor R5, the V + power supply end of the power amplifier U3 is connected to the first isolated power supply voltage output end of the power supply module, and the I of the power amplifier U3 is connected to the digital ground through a resistor R4LIMThe terminal of the power amplifier U3 is connected with a P0A pin of the digital potentiometer U2, and the output terminal of the power amplifier U2 is the output terminal of the intrinsic safety sensor power supply circuit; the VDD pin of digital potentiometer U2 is connected on the second isolation power supply voltage output end of power module, digital potentiometer U2's WP pin is connected through resistance R6 on the non-isolation power supply voltage output end of power module, digital potentiometer U2's P0W pin, P1W pin and VSS pin all connect digital ground, digital potentiometer U2's CS pin, SCK pin and SDI pin pass through the CAN transceiver with the host computer is connected.
Further, the intrinsic safety sensor signal transformation module comprises a resistor R7, a resistor R8, a resistor R9, a capacitor C1, a capacitor C2, a diode D1 and a diode D2; one end of the resistor R7 is connected to a second isolated power supply voltage output end of the power supply module, the other end of the resistor R7 is connected to digital ground through the capacitor C1, and a common connection end of the resistor R7 and the capacitor C1 is an input end of the intrinsic safety sensor signal conversion module; the resistor R8 is connected in parallel with the capacitor C1, one end of the resistor R9 is connected to a common connection end of the resistor R7 and the capacitor C1, the other end of the resistor R9 is connected to digital ground through the capacitor C2, the other end of the resistor R9 is also connected to the anode of the diode D1 and the cathode of the diode D2, the cathode of the diode D1 is connected to a second isolated power supply voltage output end of the power supply module, the anode of the diode D2 is connected to digital ground, and the other end of the resistor R9 is the output end of the intrinsic safety sensor signal conversion module.
Further, the non-intrinsically safe sensor signal conversion module comprises a resistor R10, a resistor R11, a resistor R12, a resistor R13, a capacitor C3, a capacitor C4, a capacitor C5, a diode D4, a diode D3 and an isolation chip U4; one end of the resistor R10 is connected to a second isolated power supply voltage output end of the power supply module, the other end of the resistor R10 is connected to analog ground through the capacitor C3, and a common connection end of the resistor R10 and the capacitor C3 is an input end of the non-intrinsically-safe sensor signal conversion module; the resistor R11 is connected in parallel with the capacitor C3, one end of the resistor R12 is connected to a common connection end of the resistor R10 and the capacitor C3, the other end of the resistor R12 is connected to an analog ground through the capacitor C4, the other end of the resistor R12 is connected to an anode of the diode D3 and a cathode of the diode D4 respectively, a cathode of the diode D3 is connected to a second isolated power supply voltage output end of the power supply module, an anode of the diode D4 is connected to the analog ground, the other end of the resistor R12 is connected to a Sin + pin of the isolation chip U4, a Sin-pin of the isolation chip U4 is connected to the analog ground, a GND pin of the isolation chip U4 is connected to the digital ground, a VCC pin of the isolation chip U4 is connected to a first isolated power supply voltage output end of the power supply module, a Sout-pin of the isolation chip U4 is connected to the digital ground, the Sout + pin of the isolation chip U4 is connected with one end of the resistor R13, the other end of the resistor R13 is connected with the digital ground through the capacitor C5, and the other end of the resistor R13 is the output end of the non-intrinsic-safety sensor signal conversion module.
Furthermore, a plurality of intrinsic safety sensors are arranged, a plurality of intrinsic safety sensor signal conversion modules are arranged and correspond to the plurality of intrinsic safety sensors one by one, the input end of each intrinsic safety sensor signal conversion module is connected with the signal output end of the corresponding intrinsic safety sensor, and the output end of each intrinsic safety sensor signal conversion module is connected with the signal input interface of the MCU module; or/and, the non-intrinsic safety sensor is provided with a plurality of, the non-intrinsic safety sensor signal conversion module is provided with a plurality of and with a plurality of non-intrinsic safety sensor one-to-one, every the input of non-intrinsic safety sensor signal conversion module is connected with the signal output part of a corresponding non-intrinsic safety sensor, every the output of non-intrinsic safety sensor signal conversion module all with the signal input interface connection of MCU module.
The beneficial effect of adopting the further scheme is that: the intrinsic safety sensor signal conversion module or/and the non-intrinsic safety sensor signal conversion module are/is provided with a plurality of test channels, a plurality of sensors can be detected simultaneously, and the sensor detection efficiency is improved.
Drawings
FIG. 1 is a block diagram of a multifunctional mining sensor detection system according to the present invention;
FIG. 2 is a block diagram of the overall structure of the inspection host;
FIG. 3 is a block diagram of a specific power supply configuration of a power module;
FIG. 4 is a block diagram of a power module;
FIG. 5 is a schematic diagram of a specific structure of a power supply circuit of the intrinsically safe sensor;
FIG. 6 is a schematic diagram of a specific circuit structure of the intrinsically safe sensor signal conversion module;
fig. 7 is a schematic diagram of a specific circuit structure of the non-intrinsically-safe sensor signal conversion module.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, a multifunctional mining sensor detection system comprises a test tool, a detection host and an upper computer;
the upper computer is used for inputting sensor information of a mine sensor to be detected, automatically identifying the sensor type of the mine sensor according to the sensor information, providing a corresponding test project according to the sensor type, and configuring test parameters for the test project;
the test tool is used for applying corresponding physical quantity to the mining sensor according to the type of the sensor;
the detection host is used for generating a power supply corresponding to voltage and current under the control of a test project provided by the upper computer and configured test parameters to supply power to the mining sensor, acquiring an induction signal generated by the mining sensor under the action of corresponding physical quantity, and uploading the induction signal to the upper computer;
the upper computer is used for processing the induction signals transmitted by the detection host computer to obtain detection result data and storing the detection result data.
In this particular embodiment:
the upper computer is provided with a server and is also used for uploading the detection result data to the server. The upper computer is provided with a server special for production, test data is stored, quality data tracing is provided, and data are safe and reliable.
In the upper computer, different types of test projects can be created, the rotating speed, the position, the temperature and the pressure sensor are adapted, and the corresponding test projects are selected according to the type of the sensor when the sensor is tested.
The upper computer of the invention is provided with a code scanner and a keyboard/mouse, and the sensor type is automatically identified and different test projects are automatically selected through sensor information which is input by the code scanner or manually input by the keyboard/mouse. The rotation speed sensor, the position sensor, the temperature sensor and the pressure sensor have respective models, and after the models of the sensors are input by scanning codes through the code scanner, the upper computer automatically identifies the types of the sensors according to the models and selects corresponding test projects; the sensor test project may also be selected manually by keyboard/mouse.
The upper computer of the invention provides a man-machine interaction interface, starts the sensor test by one key, and can display a nominal value and an actual test value in real time
The upper computer face recognition device inputs the information of detection personnel through the face recognition device so as to log in an upper computer; in addition, the information of the detection personnel can be manually input through a keyboard/mouse.
The upper computer can automatically judge the detection result of the sensor without human intervention.
The upper computer randomly sets the power supply parameters of the sensor when configuring the test parameters according to the intrinsic safety power supply parameters (0.5-12.5) V (0.02-4.0) A of the sensor.
The upper computer of the invention is communicated with the test host computer, controls the detection process of the test host computer, and can suspend and retest at any time.
The upper computer can inquire the history record according to the sensor number, the information of the tester and the detection date.
The upper computer of the invention can automatically generate a test report, and the test report can be printed and output to be used as a factory detection report.
In this particular embodiment:
as shown in fig. 2, the detection host includes an intrinsic safety sensor signal conversion module, a non-intrinsic safety sensor signal conversion module, an MCU module, a CAN transceiver, and a power module; the mining sensor comprises an intrinsic safety sensor and a non-intrinsic safety sensor, wherein the input end of a signal conversion module of the intrinsic safety sensor is connected with the signal output end of the intrinsic safety sensor, the input end of a signal conversion module of the non-intrinsic safety sensor is connected with the signal output end of the non-intrinsic safety sensor, the output end of the signal conversion module of the intrinsic safety sensor and the output end of the signal conversion module of the non-intrinsic safety sensor are both connected with a signal input interface of the MCU module, and a signal output interface of the MCU module is connected with the upper computer through the CAN transceiver; the input end of the power supply module is connected with a power supply, the controlled end of the power supply module is connected with the upper computer through the CAN transceiver, and the output end of the power supply module comprises an isolated power supply voltage output end and a non-isolated power supply voltage output end; the power module's non-isolation mains voltage output pass through non-ann sensor supply circuit with non-ann sensor electricity is connected, power module's non-isolation mains voltage output still with non-ann sensor signal transform module electricity is connected, power module's isolation mains voltage output respectively with the MCU module intrinsic safety sensor signal transform module and non-intrinsic safety sensor signal transform module electricity is connected, power module's isolation mains voltage output still pass through intrinsic safety sensor supply circuit with intrinsic safety sensor electricity is connected.
The method comprises the steps that an internal power supply module of a host is detected to isolate an intrinsic safety power supply from an intrinsic safety power supply, and provide an intrinsic safety voltage and an intrinsic safety voltage, so that power supply requirements of different circuits during working are met; in addition, the signal conversion module of the non-intrinsic safety sensor is used as a test channel of the non-intrinsic safety sensor, and the signal conversion module of the intrinsic safety sensor is used as a test channel of the intrinsic safety sensor, so that the invention can detect the intrinsic safety sensor and the non-intrinsic safety sensor; the detection host and the upper computer are communicated through the CAN transceiver, and the communication speed is high and safe.
Preferably, as shown in fig. 3, the isolated power supply voltage output terminal of the power supply module includes a first isolated power supply voltage output terminal and a second isolated power supply voltage output terminal; the first isolation power supply voltage output end of the power module passes through the intrinsic safety sensor power supply circuit and is electrically connected with the intrinsic safety sensor, the second isolation power supply voltage output end of the power module respectively connects with the MCU module, the intrinsic safety sensor signal transformation module and the non-intrinsic safety sensor signal transformation module, and the second isolation power supply voltage output end of the power module still passes through the intrinsic safety sensor power supply circuit and is electrically connected with the intrinsic safety sensor.
Preferably, the non-isolated voltage output by the non-isolated power supply voltage output terminal of the power supply module is 5V, the isolated voltage output by the first isolated power supply voltage output terminal of the power supply module is 15v.ex, and the isolated voltage output by the second isolated power supply voltage output terminal of the power supply module is 5v.ex (where the suffix of. EX represents the isolated power supply voltage).
Preferably, as shown in fig. 4, the power supply module includes a switching power supply, a first voltage converting circuit, a voltage isolating and converting circuit, and a second voltage converting circuit; the input end of the switch power supply is connected with a power supply, the output end of the switch power supply is electrically connected with the input end of the first voltage conversion circuit, and the output end of the first voltage conversion circuit is the non-isolated power supply voltage output end of the power supply module; the output end of the switch power supply is electrically connected with the input end of the voltage isolation and conversion circuit, and the output end of the voltage isolation and conversion circuit is the first isolation power supply voltage output end of the power supply module; the output end of the voltage isolation and conversion circuit is electrically connected with the input end of the second voltage conversion circuit, and the output end of the two voltage conversion circuits is the second isolation power supply voltage output end of the power supply module.
Preferably, the input end of the switching power supply is connected to the power supply through a fuse. The fuse can ensure the safety of power supply.
The invention adopts a switching power supply to convert AC220V into DC24V for power supply, and a first voltage conversion circuit converts DC24V output by the switching power supply into non-isolated power supply voltage output of DC 5V; the voltage isolation and conversion circuit isolates and converts DC24V output by the switching power supply into a first isolated power supply voltage output of 15V; the second voltage conversion circuit converts the first isolation power supply voltage of 15V output by the voltage isolation and conversion circuit into a second isolation power supply voltage of 5V and outputs the second isolation power supply voltage. Therefore, the first voltage conversion circuit is a voltage conversion circuit for converting DC24V into DC5V, and the second voltage conversion circuit is a voltage conversion circuit for converting 15V into 5V; therefore, the existing voltage conversion circuit can be reasonably selected as the first voltage conversion circuit and the second voltage conversion circuit according to actual needs.
The non-isolated supply voltage of DC5V powers the non-intrinsically safe circuit, and the first isolated supply voltage of 15V and the second isolated supply voltage of 5V power the intrinsically safe circuit.
Preferably, as shown in fig. 5, the intrinsically safe sensor power supply circuit includes a digital-to-analog conversion chip U1, a digital potentiometer U2 and a power amplifier U3; a VDD pin of the digital-to-analog conversion chip U1 is connected to a second isolated power supply voltage output end of the power supply module, a VOUTB pin and an LDAC pin of the digital-to-analog conversion chip U1 are correspondingly connected to a digital ground through a resistor R1 and a resistor R2, a VSS pin of the digital-to-analog conversion chip U1 is connected to the digital ground, a/CS pin, an SCK pin and an SDI pin of the digital-to-analog conversion chip U1 are connected to the upper computer through the CAN transceiver, and a VOUTA pin of the digital-to-analog conversion chip U1 is connected to a forward input end of the power amplifier U3 through a resistor R3; the negative input end of the power amplifier U3 is connected to digital ground through a resistor R4, the negative input end of the power amplifier U3 is connected to the V-power supply end of the power amplifier U3 through a resistor R5, the V + power supply end of the power amplifier U3 is connected to the first isolated power supply voltage output end of the power supply module, and the I of the power amplifier U3 is connected to the digital ground through a resistor R4LIMThe terminal of the power amplifier U3 is connected with a P0A pin of the digital potentiometer U2, and the output terminal of the power amplifier U2 is the output terminal of the intrinsic safety sensor power supply circuit; the VDD pin of digital potentiometer U2 is connected on the second isolation power supply voltage output end of power module, digital potentiometer U2's WP pin is connected through resistance R6 on the non-isolation power supply voltage output end of power module, digital potentiometer U2's P0W pin, P1W pin and VSS pin all connect digital ground, digital potentiometer U2's CS pin, SCK pin and SDI pin pass through the CAN transceiver with the host computer is connected.
Specifically, the power amplifier U3 is model OPA 548. The upper computer controls the digital-to-analog conversion chip U1 to output corresponding voltage, the voltage is input into the power amplifier U3 to provide the output voltage of the power supply of the intrinsic safety sensor, and the output voltage value of the power supply of the sensor can be changed by adjusting the output voltage of the digital-to-analog conversion chip U1. The upper computer controls the digital potentiometer U2 to output a resistance value, and the resistance value is connected to the power amplifier U3 to change the output current of the sensor power supply.
Specifically, the power supply circuit of the intrinsic safety sensor can set output power supply parameters in the range of (0.5-12.5) V and (0.02-4.0) A, rated voltage and current are output according to instructions of an upper computer to supply power to the sensor, and the intrinsic safety parameter test requirements of the intrinsic safety sensor are met. And the power supply voltage regulation resolution of the intrinsic safety sensor is 0.1V, and the power supply current regulation resolution is 0.2A.
Preferably, as shown in fig. 6, the intrinsically safe sensor signal conversion module includes a resistor R7, a resistor R8, a resistor R9, a capacitor C1, a capacitor C2, a diode D1, and a diode D2; one end of the resistor R7 is connected to a second isolated power supply voltage output end of the power supply module, the other end of the resistor R7 is connected to digital ground through the capacitor C1, and a common connection end of the resistor R7 and the capacitor C1 is an input end of the intrinsic safety sensor signal conversion module; the resistor R8 is connected in parallel with the capacitor C1, one end of the resistor R9 is connected to a common connection end of the resistor R7 and the capacitor C1, the other end of the resistor R9 is connected to digital ground through the capacitor C2, the other end of the resistor R9 is also connected to the anode of the diode D1 and the cathode of the diode D2, the cathode of the diode D1 is connected to a second isolated power supply voltage output end of the power supply module, the anode of the diode D2 is connected to digital ground, and the other end of the resistor R9 is the output end of the intrinsic safety sensor signal conversion module.
Preferably, as shown in fig. 7, the non-intrinsically safe sensor signal conversion module includes a resistor R10, a resistor R11, a resistor R12, a resistor R13, a capacitor C3, a capacitor C4, a capacitor C5, a diode D4, a diode D3, and an isolation chip U4; one end of the resistor R10 is connected to a second isolated power supply voltage output end of the power supply module, the other end of the resistor R10 is connected to analog ground through the capacitor C3, and a common connection end of the resistor R10 and the capacitor C3 is an input end of the non-intrinsically-safe sensor signal conversion module; the resistor R11 is connected in parallel with the capacitor C3, one end of the resistor R12 is connected to a common connection end of the resistor R10 and the capacitor C3, the other end of the resistor R12 is connected to an analog ground through the capacitor C4, the other end of the resistor R12 is connected to an anode of the diode D3 and a cathode of the diode D4 respectively, a cathode of the diode D3 is connected to a second isolated power supply voltage output end of the power supply module, an anode of the diode D4 is connected to the analog ground, the other end of the resistor R12 is connected to a Sin + pin of the isolation chip U4, a Sin-pin of the isolation chip U4 is connected to the analog ground, a GND pin of the isolation chip U4 is connected to the digital ground, a VCC pin of the isolation chip U4 is connected to a first isolated power supply voltage output end of the power supply module, a Sout-pin of the isolation chip U4 is connected to the digital ground, the Sout + pin of the isolation chip U4 is connected with one end of the resistor R13, the other end of the resistor R13 is connected with the digital ground through the capacitor C5, and the other end of the resistor R13 is the output end of the non-intrinsic-safety sensor signal conversion module.
The output signal types of the sensor are voltage, resistance and frequency, and the intrinsic safety sensor signal conversion module and the non-intrinsic safety sensor signal conversion module can be compatible with the 3 signals. The voltage signal is connected to an upper computer through an MCU module after being filtered and clamped, and the upper computer directly measures the output voltage of the sensor. The resistance signal is connected between the signal input pin and the ground, and is connected to the upper computer through the MCU module, and the upper computer calculates the output resistance value of the sensor according to the measured voltage value. The frequency signal is connected to an upper computer through an MCU module after being filtered and clamped, and the upper computer directly measures the frequency of the sensor. Therefore, the output ports of the intrinsic safety sensor signal conversion module and the non-intrinsic safety sensor signal conversion module must be accessed to the multiplexing port of the MCU module (the MCU module port can be configured to voltage and frequency). The specific MCU module can adopt an automobile-level special chip.
The intrinsic safety sensor signal conversion module and the non-intrinsic safety sensor signal conversion module can simultaneously test the intrinsic safety sensor and the non-intrinsic safety sensor according to requirements.
Preferably, a plurality of intrinsic safety sensors are arranged, a plurality of intrinsic safety sensor signal conversion modules are arranged and correspond to the plurality of intrinsic safety sensors one by one, the input end of each intrinsic safety sensor signal conversion module is connected with the signal output end of the corresponding intrinsic safety sensor, and the output end of each intrinsic safety sensor signal conversion module is connected with the signal input interface of the MCU module; or/and, the non-intrinsic safety sensor is provided with a plurality of, the non-intrinsic safety sensor signal conversion module is provided with a plurality of and with a plurality of non-intrinsic safety sensor one-to-one, every the input of non-intrinsic safety sensor signal conversion module is connected with the signal output part of a corresponding non-intrinsic safety sensor, every the output of non-intrinsic safety sensor signal conversion module all with the signal input interface connection of MCU module.
For example:
the present invention can provide up to 10 channels of pressure sensor testing: the system comprises at least 8 channels of intrinsic safety type voltage output sensors and 2 channels of non-intrinsic safety type voltage output sensors;
the invention can provide a rotational speed sensor test of at most 10 channels: wherein, up to 8 channels of intrinsic safety type frequency output sensors and 2 channels of non-intrinsic safety type frequency output sensors are provided;
the present invention can provide up to 10 channels of temperature sensor testing: the sensor comprises at least 8 channels of intrinsic safety type resistance output sensors and 2 channels of non-intrinsic safety type resistance output sensors;
the present invention can provide up to 10 channels of position sensor testing: wherein, up to 8 channels of intrinsic safety type voltage output sensors and 2 channels of non-intrinsic safety type voltage output sensors are arranged;
the intrinsic safety sensor signal conversion module or/and the non-intrinsic safety sensor signal conversion module are/is provided with a plurality of test channels, a plurality of sensors can be detected simultaneously, and the sensor detection efficiency is improved.
In this particular embodiment: the test tool applies corresponding physical quantities, such as pressure, temperature, rotating speed, position and the like, to the sensor, and the test tool can be used by a common device.
In the multifunctional mining sensor detection system, an upper computer provides corresponding test engineering according to the sensor type of the mining sensor, adapts to various types of mining sensors such as rotating speed, position, temperature, pressure and the like, configures test parameters for the test engineering to enable a detection host to generate power supplies required by different types of sensors during working, automatically acquires induction signals generated by the mining sensor under the action of corresponding physical quantities applied by a test tool through the detection host, and obtains detection result data through signal processing; the invention can detect various different types of mine sensors by only one set of system, has less test equipment and is easy to manage.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a multi-functional mining sensor detecting system which characterized in that: the device comprises a test tool, a detection host and an upper computer;
the upper computer is used for inputting sensor information of a mine sensor to be detected, automatically identifying the sensor type of the mine sensor according to the sensor information, providing a corresponding test project according to the sensor type, and configuring test parameters for the test project;
the test tool is used for applying corresponding physical quantity to the mining sensor according to the type of the sensor;
the detection host is used for generating a power supply corresponding to voltage and current under the control of a test project provided by the upper computer and configured test parameters to supply power to the mining sensor, acquiring an induction signal generated by the mining sensor under the action of corresponding physical quantity, and uploading the induction signal to the upper computer;
the upper computer is used for processing the induction signals transmitted by the detection host computer to obtain detection result data and storing the detection result data.
2. The multi-functional mining sensor detection system of claim 1, characterized in that: the upper computer is provided with a server and is also used for uploading the detection result data to the server.
3. The multi-functional mining sensor detection system of claim 1 or 2, characterized in that: the detection host comprises an intrinsic safety sensor signal conversion module, a non-intrinsic safety sensor signal conversion module, an MCU module, a CAN transceiver and a power module; the mining sensor comprises an intrinsic safety sensor and a non-intrinsic safety sensor, wherein the input end of a signal conversion module of the intrinsic safety sensor is connected with the signal output end of the intrinsic safety sensor, the input end of a signal conversion module of the non-intrinsic safety sensor is connected with the signal output end of the non-intrinsic safety sensor, the output end of the signal conversion module of the intrinsic safety sensor and the output end of the signal conversion module of the non-intrinsic safety sensor are both connected with a signal input interface of the MCU module, and a signal output interface of the MCU module is connected with the upper computer through the CAN transceiver; the input end of the power supply module is connected with a power supply, the controlled end of the power supply module is connected with the upper computer through the CAN transceiver, and the output end of the power supply module comprises an isolated power supply voltage output end and a non-isolated power supply voltage output end; the power module's non-isolation mains voltage output pass through non-ann sensor supply circuit with non-ann sensor electricity is connected, power module's non-isolation mains voltage output still with non-ann sensor signal transform module electricity is connected, power module's isolation mains voltage output respectively with the MCU module intrinsic safety sensor signal transform module and non-intrinsic safety sensor signal transform module electricity is connected, power module's isolation mains voltage output still pass through intrinsic safety sensor supply circuit with intrinsic safety sensor electricity is connected.
4. The multi-functional mining sensor detection system of claim 3, characterized in that: the isolation power supply voltage output end of the power supply module comprises a first isolation power supply voltage output end and a second isolation power supply voltage output end; the first isolation power supply voltage output end of the power module passes through the intrinsic safety sensor power supply circuit and is electrically connected with the intrinsic safety sensor, the second isolation power supply voltage output end of the power module respectively connects with the MCU module, the intrinsic safety sensor signal transformation module and the non-intrinsic safety sensor signal transformation module, and the second isolation power supply voltage output end of the power module still passes through the intrinsic safety sensor power supply circuit and is electrically connected with the intrinsic safety sensor.
5. The multi-functional mining sensor detection system of claim 4, characterized in that: the non-isolation voltage output by the non-isolation power supply voltage output end of the power supply module is 5V, the isolation voltage output by the first isolation power supply voltage output end of the power supply module is 15V.EX, and the isolation voltage output by the second isolation power supply voltage output end of the power supply module is 5 V.EX.
6. The multi-functional mining sensor detection system of claim 4, characterized in that: the power supply module comprises a switching power supply, a first voltage conversion circuit, a voltage isolation and conversion circuit and a second voltage conversion circuit; the input end of the switch power supply is connected with a power supply, the output end of the switch power supply is electrically connected with the input end of the first voltage conversion circuit, and the output end of the first voltage conversion circuit is the non-isolated power supply voltage output end of the power supply module; the output end of the switch power supply is electrically connected with the input end of the voltage isolation and conversion circuit, and the output end of the voltage isolation and conversion circuit is the first isolation power supply voltage output end of the power supply module; the output end of the voltage isolation and conversion circuit is electrically connected with the input end of the second voltage conversion circuit, and the output end of the second voltage conversion circuit is the second isolation power supply voltage output end of the power supply module.
7. The multi-functional mining sensor detection system of claim 4, characterized in that: the intrinsically safe sensor power supply circuit comprises a digital-to-analog conversion chip U1, a digital potentiometer U2 and a power amplifier U3; the VDD pin of the digital-to-analog conversion chip U1 is connected to the power supply moduleOn a second isolation power supply voltage output end, a VOUTB pin and an LDAC pin of the digital-to-analog conversion chip U1 are correspondingly connected with a digital ground through a resistor R1 and a resistor R2, a VSS pin of the digital-to-analog conversion chip U1 is connected with the digital ground, a/CS pin, an SCK pin and an SDI pin of the digital-to-analog conversion chip U1 are connected with the upper computer through the CAN transceiver, and a VOUTA pin of the digital-to-analog conversion chip U1 is connected with a forward input end of the power amplifier U3 through a resistor R3; the negative input end of the power amplifier U3 is connected to digital ground through a resistor R4, the negative input end of the power amplifier U3 is connected to the V-power supply end of the power amplifier U3 through a resistor R5, the V + power supply end of the power amplifier U3 is connected to the first isolated power supply voltage output end of the power supply module, and the I of the power amplifier U3 is connected to the digital ground through a resistor R4LIMThe terminal of the power amplifier U3 is connected with a P0A pin of the digital potentiometer U2, and the output terminal of the power amplifier U2 is the output terminal of the intrinsic safety sensor power supply circuit; the VDD pin of digital potentiometer U2 is connected on the second isolation power supply voltage output end of power module, digital potentiometer U2's WP pin is connected through resistance R6 on the non-isolation power supply voltage output end of power module, digital potentiometer U2's P0W pin, P1W pin and VSS pin all connect digital ground, digital potentiometer U2's CS pin, SCK pin and SDI pin pass through the CAN transceiver with the host computer is connected.
8. The multi-functional mining sensor detection system of any of claims 4-7, characterized in that: the intrinsic safety sensor signal conversion module comprises a resistor R7, a resistor R8, a resistor R9, a capacitor C1, a capacitor C2, a diode D1 and a diode D2; one end of the resistor R7 is connected to a second isolated power supply voltage output end of the power supply module, the other end of the resistor R7 is connected to digital ground through the capacitor C1, and a common connection end of the resistor R7 and the capacitor C1 is an input end of the intrinsic safety sensor signal conversion module; the resistor R8 is connected in parallel with the capacitor C1, one end of the resistor R9 is connected to a common connection end of the resistor R7 and the capacitor C1, the other end of the resistor R9 is connected to digital ground through the capacitor C2, the other end of the resistor R9 is also connected to the anode of the diode D1 and the cathode of the diode D2, the cathode of the diode D1 is connected to a second isolated power supply voltage output end of the power supply module, the anode of the diode D2 is connected to digital ground, and the other end of the resistor R9 is the output end of the intrinsic safety sensor signal conversion module.
9. The multi-functional mining sensor detection system of any of claims 4-7, characterized in that: the non-intrinsic safety sensor signal conversion module comprises a resistor R10, a resistor R11, a resistor R12, a resistor R13, a capacitor C3, a capacitor C4, a capacitor C5, a diode D4, a diode D3 and an isolation chip U4; one end of the resistor R10 is connected to a second isolated power supply voltage output end of the power supply module, the other end of the resistor R10 is connected to analog ground through the capacitor C3, and a common connection end of the resistor R10 and the capacitor C3 is an input end of the non-intrinsically-safe sensor signal conversion module; the resistor R11 is connected in parallel with the capacitor C3, one end of the resistor R12 is connected to a common connection end of the resistor R10 and the capacitor C3, the other end of the resistor R12 is connected to an analog ground through the capacitor C4, the other end of the resistor R12 is connected to an anode of the diode D3 and a cathode of the diode D4 respectively, a cathode of the diode D3 is connected to a second isolated power supply voltage output end of the power supply module, an anode of the diode D4 is connected to the analog ground, the other end of the resistor R12 is connected to a Sin + pin of the isolation chip U4, a Sin-pin of the isolation chip U4 is connected to the analog ground, a GND pin of the isolation chip U4 is connected to the digital ground, a VCC pin of the isolation chip U4 is connected to a first isolated power supply voltage output end of the power supply module, a Sout-pin of the isolation chip U4 is connected to the digital ground, the Sout + pin of the isolation chip U4 is connected with one end of the resistor R13, the other end of the resistor R13 is connected with the digital ground through the capacitor C5, and the other end of the resistor R13 is the output end of the non-intrinsic-safety sensor signal conversion module.
10. The multi-functional mining sensor detection system of any of claims 4-7, characterized in that: the number of the intrinsic safety sensors is multiple, the intrinsic safety sensor signal conversion modules are multiple and correspond to the multiple intrinsic safety sensors one by one, the input end of each intrinsic safety sensor signal conversion module is connected with the signal output end of the corresponding intrinsic safety sensor, and the output end of each intrinsic safety sensor signal conversion module is connected with the signal input interface of the MCU module; or/and, the non-intrinsic safety sensor is provided with a plurality of, the non-intrinsic safety sensor signal conversion module is provided with a plurality of and with a plurality of non-intrinsic safety sensor one-to-one, every the input of non-intrinsic safety sensor signal conversion module is connected with the signal output part of a corresponding non-intrinsic safety sensor, every the output of non-intrinsic safety sensor signal conversion module all with the signal input interface connection of MCU module.
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