CN114383657B - Multifunctional mining sensor detection system - Google Patents
Multifunctional mining sensor detection system Download PDFInfo
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- CN114383657B CN114383657B CN202111650850.2A CN202111650850A CN114383657B CN 114383657 B CN114383657 B CN 114383657B CN 202111650850 A CN202111650850 A CN 202111650850A CN 114383657 B CN114383657 B CN 114383657B
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- 238000001514 detection method Methods 0.000 title claims abstract description 65
- 238000005065 mining Methods 0.000 title claims abstract description 51
- 238000012360 testing method Methods 0.000 claims abstract description 72
- 230000006698 induction Effects 0.000 claims abstract description 12
- 230000009471 action Effects 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 147
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- 230000009286 beneficial effect Effects 0.000 description 4
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- G—PHYSICS
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- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
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Abstract
The invention relates to a multifunctional mining sensor detection system which comprises a test tool, a detection host and an upper computer, wherein the test tool is connected with the detection host; the upper computer is used for automatically identifying the sensor type of the mining sensor, providing corresponding test engineering and configuring test parameters; the test fixture is used for applying corresponding physical quantity to the mining sensor; the detection host is used for generating a power supply with corresponding voltage and corresponding current to supply power to the mining sensor under the control of the test engineering and the test parameters, and collecting induction signals which are induced by the mining sensor under the action of corresponding physical quantities. In the invention, the upper computer provides corresponding test projects according to the sensor types of the mining sensors, and configures test parameters for the test projects so that the detection host generates power supplies required by the operation of the sensors of different types; the invention can detect a plurality of different types of mine sensors by only one set of system, has less testing 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
Mining sensors are of a wide variety such as pressure sensors, temperature sensors, position sensors, rotational speed sensors, and the like. Currently, the detection of most mining sensors refers to the detection mode of the national safety production mining equipment detection and inspection center, and most manufacturers in the industry are relatively backward in the detection of mining products, or detect the mining products one by one, or each product is provided 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 provided with a sensor detection device, and different detection devices are needed for different sensors, so that the test equipment is more and the management is not easy.
Disclosure of Invention
The invention aims to solve the technical problem of providing a multifunctional mining sensor detection system, which can detect a plurality of types of mining 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 mining sensor to be detected, automatically identifying the sensor type of the mining 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 fixture is used for applying corresponding physical quantity to the mining sensor according to the sensor type;
the detection host is used for generating a power supply with corresponding voltage and corresponding current to supply power for the mining sensor under the control of test engineering and configured test parameters provided by the upper computer, collecting induction signals induced by the mining sensor under the action of corresponding physical quantities, and uploading the induction signals 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 beneficial effects of the invention are as follows: in the multifunctional mining sensor detection system, an upper computer provides corresponding test engineering according to the sensor type of a mining sensor, adapts a plurality of 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 the operation of different types of sensors, automatically acquires induction signals which are induced 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 a plurality of different types of mine sensors by only one set of system, has less testing equipment and is easy to manage.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the upper computer is configured with a server, and the upper computer is further configured to upload the detection result data to the server.
The beneficial effects of adopting the further scheme are as follows: the upper computer is configured with a special server for production, test data are stored, quality data tracing is provided, and the 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 supply 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 An Chuangan device is connected with the signal output end of the intrinsic safety sensor, the input end of the signal conversion module of the non-intrinsic An Chuangan device is connected with the signal output end of the non-intrinsic safety sensor, the output end of the signal conversion module of the intrinsic An Chuangan device and the output end of the signal conversion module of the non-intrinsic An Chuangan device are both connected with the signal input interface of the MCU module, and the 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 non-isolated power supply voltage output end of the power supply module is electrically connected with the non-intrinsic safety sensor through a non-intrinsic safety sensor power supply circuit, the non-isolated power supply voltage output end of the power supply module is also electrically connected with the non-intrinsic An Chuangan device signal conversion module, the isolated power supply voltage output end of the power supply module is respectively electrically connected with the MCU module, the intrinsic An Chuangan device signal conversion module and the non-intrinsic An Chuangan device signal conversion module, and the isolated power supply voltage output end of the power supply module is also electrically connected with the intrinsic safety sensor through an intrinsic safety sensor power supply circuit.
The beneficial effects of adopting the further scheme are as follows: detecting an internal power supply module of a host to isolate an intrinsic safety power supply from a non-intrinsic safety power supply, providing a non-intrinsic safety voltage and an intrinsic safety voltage, and meeting the power supply requirements of different circuits in operation; in addition, the non-local An Chuangan signal conversion module is used as a test channel of a non-local safety sensor, and the local An Chuangan signal conversion module is used as a test channel of the local safety sensor, so that the invention can detect both the local safety sensor and the non-local safety sensor; the detection host computer and the upper computer are communicated through the CAN transceiver, so that the communication speed is high and the safety is high.
Further, the isolated power supply voltage output end of the power supply module comprises a first isolated power supply voltage output end and a second isolated power supply voltage output end; the first isolation power supply voltage output end of the power supply module is electrically connected with the intrinsic safety sensor through the intrinsic safety sensor power supply circuit, the second isolation power supply voltage output end of the power supply module is electrically connected with the MCU module, the An Chuangan device signal conversion module and the non-An Chuangan device signal conversion module respectively, and the second isolation power supply voltage output end of the power supply module is also electrically connected with the intrinsic safety sensor through the intrinsic safety sensor power supply circuit.
Further, the non-isolated voltage output by the non-isolated power supply voltage output end of the power supply module is 5V, the isolated voltage output by the first isolated power supply voltage output end of the power supply module is 15v.ex, and the isolated voltage output by the second isolated power supply voltage output end of the power supply module is 5v.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 switching power supply is connected with a power supply, the output end of the switching 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 switching 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 isolated 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 intrinsic safety 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 second isolated power supply voltage output end of the power supply module, and the VOUTB pin and the LDAC pin of the digital-to-analog conversion chip U1 correspond to each otherThe digital-to-analog conversion circuit is connected with digital ground through a resistor R1 and a resistor R2, the VSS pin of the digital-to-analog conversion chip U1 is connected with digital ground, the/CS pin, the SCK pin and the SDI pin of the digital-to-analog conversion chip U1 are connected with the upper computer through the CAN transceiver, and the VOUTA pin of the digital-to-analog conversion chip U1 is connected to the positive input end of the power amplifier U3 through a resistor R3; the negative input end of the power amplifier U3 is grounded digitally 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 LIM The end is connected with a P0A pin of the digital potentiometer U2, and the output end of the power amplifier U3 is the output end of the intrinsic safety sensor power supply circuit; the VDD pin of the digital potentiometer U2 is connected to the second isolated power supply voltage output end of the power supply module, the WP pin of the digital potentiometer U2 is connected to the non-isolated power supply voltage output end of the power supply module through a resistor R6, the P0W pin, the P1W pin and the VSS pin of the digital potentiometer U2 are all grounded digitally, and the/CS pin, the SCK pin and the SDI pin of the digital potentiometer U2 are connected with the upper computer through the CAN transceiver.
Further, 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 An Chuangan device signal conversion module; the resistor R8 is connected with the capacitor C1 in parallel, one end of the resistor R9 is connected to the common connection end of the resistor R7 and the capacitor C1, the other end of the resistor R9 is connected with digital ground through the capacitor C2, the other end of the resistor R9 is also connected with the positive electrode of the diode D1 and the negative electrode of the diode D2 respectively, the negative electrode of the diode D1 is connected to the second isolated power supply voltage output end of the power supply module, the positive electrode of the diode D2 is connected with digital ground, and the other end of the resistor R9 is the output end of the An Chuangan device signal conversion module.
Further, the non-self An Chuangan 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-self An Chuangan device 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 analog ground through the capacitor C4, the other end of the resistor R12 is also connected to the positive pole of the diode D3 and the negative pole of the diode D4 respectively, the negative pole of the diode D3 is connected to a second isolated power supply voltage output end of the power supply module, the positive pole of the diode D4 is connected to analog ground, the other end of the resistor R12 is also connected to a sin+ pin of the isolation chip U4, the Sin-pin of the isolation chip U4 is connected to analog ground, the GND pin of the isolation chip U4 is connected to digital ground, the VCC pin of the isolation chip U4 is connected to the first isolated power supply voltage output end of the power supply module, the sout+ pin of the isolation chip U4 is connected to one end of the resistor R13, and the other end of the isolation chip U4 is connected to the digital ground through the resistor R13, namely the other end of the resistor R13 is connected to the digital converter 3813.
Further, a plurality of intrinsic safety sensors are provided, the An Chuangan device signal conversion modules are provided and correspond to the intrinsic safety sensors one by one, the input end of each An Chuangan device signal conversion module is connected with the signal output end of a corresponding intrinsic safety sensor, and the output end of each An Chuangan device 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 non-intrinsic safety sensor, the non-intrinsic safety An Chuangan device signal conversion module is provided with a plurality of non-intrinsic safety sensor one-to-one correspondence, the input end of each non-intrinsic safety An Chuangan device signal conversion module is connected with the signal output end of the corresponding non-intrinsic safety sensor, and the output end of each non-intrinsic safety An Chuangan device signal conversion module is connected with the signal input interface of the MCU module.
The beneficial effects of adopting the further scheme are as follows: the An Chuangan device signal conversion module or/and the An Chuangan device signal conversion module are provided with a plurality of test channels, so that a plurality of sensors can be detected at the same time, and the detection efficiency of the sensors 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 detecting 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 intrinsic safety sensor;
fig. 6 is a schematic diagram of a specific circuit structure of the signal conversion module of the An Chuangan device;
fig. 7 is a schematic diagram of a specific circuit structure of the signal conversion module of the non-present An Chuangan device.
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.
As shown in FIG. 1, the multifunctional mining sensor detection system comprises a test fixture, a detection host and an upper computer;
the upper computer is used for inputting sensor information of a mining sensor to be detected, automatically identifying the sensor type of the mining 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 fixture is used for applying corresponding physical quantity to the mining sensor according to the sensor type;
the detection host is used for generating a power supply with corresponding voltage and corresponding current to supply power for the mining sensor under the control of test engineering and configured test parameters provided by the upper computer, collecting induction signals induced by the mining sensor under the action of corresponding physical quantities, and uploading the induction signals 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 configured with a special server for production, test data are stored, quality data tracing is provided, and the 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 sensor types when the sensor is tested.
The upper computer is provided with the code scanner and the keyboard/mouse, sensor information which is input through the code scanner or manually input through the keyboard/mouse is used for automatically identifying the type of the sensor, and different test projects are automatically selected. The rotating speed sensor, the position sensor, the temperature sensor and the pressure sensor have respective types, and after the sensor types are input through code scanning of the code scanner, the upper computer automatically identifies the sensor types according to the types and selects corresponding test projects; the sensor test engineering may also be selected manually via a keyboard/mouse.
The upper computer of the invention provides a man-machine interaction interface, one key starts the sensor test, and can display the nominal value and the actual test value in real time
According to the upper computer face recognition device, the information of the detection personnel is input through the face recognition device so as to log in the upper computer; in addition, the inspector information can also 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 of the invention randomly sets the power supply parameters of the sensor according to the intrinsic safety power supply parameters (0.5-12.5) V and the (0.02-4.0) A of the sensor when configuring the test parameters.
The upper computer is communicated with the testing host computer, controls the detection process of the testing host computer, and can pause and retest at any time.
The upper computer can query the history record according to the number of the sensor, the information of the tester and the detection date.
The upper computer can automatically generate the test report, and the test report can be printed out to serve as a delivery 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 An Chuangan device is connected with the signal output end of the intrinsic safety sensor, the input end of the signal conversion module of the non-intrinsic An Chuangan device is connected with the signal output end of the non-intrinsic safety sensor, the output end of the signal conversion module of the intrinsic An Chuangan device and the output end of the signal conversion module of the non-intrinsic An Chuangan device are both connected with the signal input interface of the MCU module, and the 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 non-isolated power supply voltage output end of the power supply module is electrically connected with the non-intrinsic safety sensor through a non-intrinsic safety sensor power supply circuit, the non-isolated power supply voltage output end of the power supply module is also electrically connected with the non-intrinsic An Chuangan device signal conversion module, the isolated power supply voltage output end of the power supply module is respectively electrically connected with the MCU module, the intrinsic An Chuangan device signal conversion module and the non-intrinsic An Chuangan device signal conversion module, and the isolated power supply voltage output end of the power supply module is also electrically connected with the intrinsic safety sensor through an intrinsic safety sensor power supply circuit.
Detecting an internal power supply module of a host to isolate an intrinsic safety power supply from a non-intrinsic safety power supply, providing a non-intrinsic safety voltage and an intrinsic safety voltage, and meeting the power supply requirements of different circuits in operation; in addition, the non-local An Chuangan signal conversion module is used as a test channel of a non-local safety sensor, and the local An Chuangan signal conversion module is used as a test channel of the local safety sensor, so that the invention can detect both the local safety sensor and the non-local safety sensor; the detection host computer and the upper computer are communicated through the CAN transceiver, so that the communication speed is high and the safety is high.
Preferably, as shown in fig. 3, the isolated power supply voltage output end of the power supply module includes a first isolated power supply voltage output end and a second isolated power supply voltage output end; the first isolation power supply voltage output end of the power supply module is electrically connected with the intrinsic safety sensor through the intrinsic safety sensor power supply circuit, the second isolation power supply voltage output end of the power supply module is electrically connected with the MCU module, the An Chuangan device signal conversion module and the non-An Chuangan device signal conversion module respectively, and the second isolation power supply voltage output end of the power supply module is also electrically connected with the intrinsic safety sensor through the intrinsic safety sensor power supply circuit.
Preferably, the non-isolated voltage output by the non-isolated power supply voltage output end of the power supply module is 5V, the isolated voltage output by the first isolated power supply voltage output end of the power supply module is 15v.ex, and the isolated voltage output by the second isolated power supply voltage output end of the power supply module is 5v.ex (where the · EX suffix represents the isolated power supply voltage).
Preferably, as shown in fig. 4, the power module includes 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 switching power supply is connected with a power supply, the output end of the switching 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 switching 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 isolated 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 the switching power supply to convert AC220V into DC24V for power supply, and the first voltage conversion circuit converts DC24V output by the switching power supply into DC5V non-isolated power supply voltage for output; 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 15V first isolated power supply voltage output by the voltage isolation and conversion circuit into a 5V second isolated power supply voltage output. From this, the first voltage conversion circuit is specifically a voltage conversion circuit that converts DC24V to DC5V, and the second voltage conversion circuit is specifically a voltage conversion circuit that converts 15V to 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 supplies power to the non-intrinsic safety circuit, and the first isolated supply voltage of 15V and the second isolated supply voltage of 5V supply power to the intrinsic safety circuit.
Preferably, as shown in fig. 5, the intrinsic safety 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 second isolated power supply voltage output end of the power supply module, the VOUTB pin and the LDAC pin of the digital-to-analog conversion chip U1 are correspondingly grounded through a resistor R1 and a resistor R2, the VSS pin of the digital-to-analog conversion chip U1 is grounded digitally, and the digital-to-analog conversion chip U1 is connected to the groundThe digital-to-analog conversion chip U1 comprises a power amplifier U3, a CAN transceiver, a digital-to-analog conversion chip U1, a resistor R3, a power amplifier U3 and a power amplifier, wherein the power amplifier U3 comprises a power amplifier, a power amplifier and a digital-to-analog conversion chip U1, wherein the power amplifier comprises a power amplifier, a power amplifier and a digital-to-analog conversion chip U1, a power amplifier, and the power amplifier is connected with the power amplifier through the power amplifier; the negative input end of the power amplifier U3 is grounded digitally 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 LIM The end is connected with a P0A pin of the digital potentiometer U2, and the output end of the power amplifier U3 is the output end of the intrinsic safety sensor power supply circuit; the VDD pin of the digital potentiometer U2 is connected to the second isolated power supply voltage output end of the power supply module, the WP pin of the digital potentiometer U2 is connected to the non-isolated power supply voltage output end of the power supply module through a resistor R6, the P0W pin, the P1W pin and the VSS pin of the digital potentiometer U2 are all grounded digitally, and the/CS pin, the SCK pin and the SDI pin of the digital potentiometer U2 are connected with the upper computer through the CAN transceiver.
Specifically, the power amplifier U3 is model OPA548. 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 An Chuangan device power supply, and the output voltage value of the sensor power supply 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 is connected to the power amplifier U3 to change the output current of the sensor power supply.
Specifically, the intrinsic safety sensor power supply circuit can set output power supply parameters within the range of (0.5-12.5) V and (0.02-4.0) A, and output rated voltage and current according to an instruction of an upper computer to supply power for the sensor, so that the intrinsic safety sensor intrinsic safety parameter test requirement is met. And the power supply voltage regulation resolution of the An Chuangan device is 0.1V, and the power supply current regulation resolution is 0.2A.
Preferably, as shown in fig. 6, the intrinsic safety 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 An Chuangan device signal conversion module; the resistor R8 is connected with the capacitor C1 in parallel, one end of the resistor R9 is connected to the common connection end of the resistor R7 and the capacitor C1, the other end of the resistor R9 is connected with digital ground through the capacitor C2, the other end of the resistor R9 is also connected with the positive electrode of the diode D1 and the negative electrode of the diode D2 respectively, the negative electrode of the diode D1 is connected to the second isolated power supply voltage output end of the power supply module, the positive electrode of the diode D2 is connected with digital ground, and the other end of the resistor R9 is the output end of the An Chuangan device signal conversion module.
Preferably, as shown in fig. 7, the non-native An Chuangan 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-self An Chuangan device 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 analog ground through the capacitor C4, the other end of the resistor R12 is also connected to the positive pole of the diode D3 and the negative pole of the diode D4 respectively, the negative pole of the diode D3 is connected to a second isolated power supply voltage output end of the power supply module, the positive pole of the diode D4 is connected to analog ground, the other end of the resistor R12 is also connected to a sin+ pin of the isolation chip U4, the Sin-pin of the isolation chip U4 is connected to analog ground, the GND pin of the isolation chip U4 is connected to digital ground, the VCC pin of the isolation chip U4 is connected to the first isolated power supply voltage output end of the power supply module, the sout+ pin of the isolation chip U4 is connected to one end of the resistor R13, and the other end of the isolation chip U4 is connected to the digital ground through the resistor R13, namely the other end of the resistor R13 is connected to the digital converter 3813.
The types of sensor output signals 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 the upper computer through the MCU module after filtering and clamping, 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 the upper computer through the MCU module after filtering and clamping, and the upper computer directly measures the frequency of the sensor. Therefore, the output ports of the present An Chuangan sensor signal conversion module and the non-intrinsic sensor signal conversion module must be connected to the multiplexing ports of the MCU module (the MCU module ports can be configured as voltage and frequency). The specific MCU module can adopt a special chip of an automobile level.
The An Chuangan device signal conversion module and the non-intrinsic safety sensor signal conversion module can test the intrinsic safety sensor and the non-intrinsic safety sensor at the same time according to the requirement.
Preferably, the number of the intrinsic safety sensors is multiple, the number of the intrinsic safety sensor An Chuangan signal conversion modules is multiple and corresponds to the number of the intrinsic safety sensors one by one, the input end of each intrinsic safety sensor An Chuangan 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 An Chuangan 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 non-intrinsic safety sensor, the non-intrinsic safety An Chuangan device signal conversion module is provided with a plurality of non-intrinsic safety sensor one-to-one correspondence, the input end of each non-intrinsic safety An Chuangan device signal conversion module is connected with the signal output end of the corresponding non-intrinsic safety sensor, and the output end of each non-intrinsic safety An Chuangan device signal conversion module is connected with the signal input interface of the MCU module.
For example:
the present invention can provide up to 10 channel pressure sensor testing: up to 8 channels of intrinsic safety type voltage output sensors and 2 paths of non-intrinsic safety type voltage output sensors;
the invention can provide rotational speed sensor test of at most 10 channels: up to 8 channels of intrinsic safety type frequency output sensors and 2 channels of non-intrinsic safety type frequency output sensors;
the invention can provide a maximum of 10 channels of temperature sensor tests: up to 8 channels of intrinsic safety type resistance output sensors and 2 paths of non-intrinsic safety type resistance output sensors;
the present invention can provide up to 10 channel position sensor testing: up to 8 channels of intrinsic safety type voltage output sensors and 2 paths of non-intrinsic safety type voltage output sensors;
the An Chuangan device signal conversion module or/and the An Chuangan device signal conversion module are provided with a plurality of test channels, so that a plurality of sensors can be detected at the same time, and the detection efficiency of the sensors is improved.
In this particular embodiment: the test fixture applies corresponding physical quantities, such as pressure, temperature, rotating speed, position and the like, to the sensor, and the sensor is a universal device.
In the multifunctional mining sensor detection system, an upper computer provides corresponding test engineering according to the sensor type of a mining sensor, adapts a plurality of 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 the operation of different types of sensors, automatically acquires induction signals which are induced 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 a plurality of different types of mine sensors by only one set of system, has less testing equipment and is easy to manage.
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 (6)
1. A multifunctional mining sensor detection system is 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 mining sensor to be detected, automatically identifying the sensor type of the mining 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 fixture is used for applying corresponding physical quantity to the mining sensor according to the sensor type;
the detection host is used for generating a power supply with corresponding voltage and corresponding current to supply power for the mining sensor under the control of test engineering and configured test parameters provided by the upper computer, collecting induction signals induced by the mining sensor under the action of corresponding physical quantities, and uploading the induction signals to the upper computer;
the upper computer is used for processing the induction signals transmitted by the detection host to obtain detection result data, and storing the detection result data;
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 supply 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 An Chuangan device is connected with the signal output end of the intrinsic safety sensor, the input end of the signal conversion module of the non-intrinsic An Chuangan device is connected with the signal output end of the non-intrinsic safety sensor, the output end of the signal conversion module of the intrinsic An Chuangan device and the output end of the signal conversion module of the non-intrinsic An Chuangan device are both connected with the signal input interface of the MCU module, and the 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 non-isolated power supply voltage output end of the power supply module is electrically connected with the non-intrinsic safety sensor through a non-intrinsic safety sensor power supply circuit, the non-isolated power supply voltage output end of the power supply module is also electrically connected with the non-intrinsic An Chuangan device signal conversion module, the isolated power supply voltage output end of the power supply module is respectively electrically connected with the MCU module, the intrinsic An Chuangan device signal conversion module and the non-intrinsic An Chuangan device signal conversion module, and the isolated power supply voltage output end of the power supply module is also electrically connected with the intrinsic safety sensor through an intrinsic safety sensor power supply circuit;
the isolated power supply voltage output end of the power supply module comprises a first isolated power supply voltage output end and a second isolated power supply voltage output end; the first isolated power supply voltage output end of the power supply module is electrically connected with the intrinsic safety sensor through the intrinsic safety sensor power supply circuit, the second isolated power supply voltage output end of the power supply module is respectively and electrically connected with the MCU module, the An Chuangan device signal conversion module and the non-An Chuangan device signal conversion module, and the second isolated power supply voltage output end of the power supply module is also electrically connected with the intrinsic safety sensor through the intrinsic safety sensor power supply circuit;
the power 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 switching power supply is connected with a power supply, the output end of the switching 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 switching 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 isolated 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;
the intrinsic safety 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 a second isolated power supply voltage output end of the power supply module, the VOUTB pin and the LDAC pin of the digital-to-analog conversion chip U1 are correspondingly grounded through a resistor R1 and a resistor R2, the VSS pin of the digital-to-analog conversion chip U1 is grounded digitally, the/CS pin, the SCK pin and the SDI pin of the digital-to-analog conversion chip U1 are connected with the upper computer through the CAN transceiver, and the VOUTA pin of the digital-to-analog conversion chip U1 is connected to a positive input end of the power amplifier U3 through a resistor R3; the negative input end of the power amplifier U3 is grounded digitally 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 LIM The end is connected with a P0A pin of the digital potentiometer U2, and the output end of the power amplifier U3 is the output end of the intrinsic safety sensor power supply circuit; the VDD pin of the digital potentiometer U2 is connected to the second isolated power supply voltage output end of the power supply module, the WP pin of the digital potentiometer U2 is connected to the non-isolated power supply voltage output end of the power supply module through a resistor R6, the P0W pin, the P1W pin and the VSS pin of the digital potentiometer U2 are all grounded digitally, and the/CS pin, the SCK pin and the SDI pin of the digital potentiometer U2 are connected with the upper computer through the CAN transceiver.
2. The multi-functional mining sensor detection system of claim 1, wherein: 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, wherein: the non-isolated voltage output by the non-isolated power supply voltage output end of the power supply module is 5V, the isolated voltage output by the first isolated power supply voltage output end of the power supply module is 15V.EX, and the isolated voltage output by the second isolated power supply voltage output end of the power supply module is 5V.EX.
4. A multifunctional mining sensor detection system according to any one of claims 1-3, 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 An Chuangan device signal conversion module; the resistor R8 is connected with the capacitor C1 in parallel, one end of the resistor R9 is connected to the common connection end of the resistor R7 and the capacitor C1, the other end of the resistor R9 is connected with digital ground through the capacitor C2, the other end of the resistor R9 is also connected with the positive electrode of the diode D1 and the negative electrode of the diode D2 respectively, the negative electrode of the diode D1 is connected to the second isolated power supply voltage output end of the power supply module, the positive electrode of the diode D2 is connected with digital ground, and the other end of the resistor R9 is the output end of the An Chuangan device signal conversion module.
5. A multifunctional mining sensor detection system according to any one of claims 1-3, characterized in that: the non-self An Chuangan device 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-self An Chuangan device 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 analog ground through the capacitor C4, the other end of the resistor R12 is also connected to the positive pole of the diode D3 and the negative pole of the diode D4 respectively, the negative pole of the diode D3 is connected to a second isolated power supply voltage output end of the power supply module, the positive pole of the diode D4 is connected to analog ground, the other end of the resistor R12 is also connected to a sin+ pin of the isolation chip U4, the Sin-pin of the isolation chip U4 is connected to analog ground, the GND pin of the isolation chip U4 is connected to digital ground, the VCC pin of the isolation chip U4 is connected to the first isolated power supply voltage output end of the power supply module, the sout+ pin of the isolation chip U4 is connected to one end of the resistor R13, and the other end of the isolation chip U4 is connected to the digital ground through the resistor R13, namely the other end of the resistor R13 is connected to the digital converter 3813.
6. A multifunctional mining sensor detection system according to any one of claims 1-3, characterized in that: the number of the intrinsic safety sensors is multiple, the number of the intrinsic safety sensor An Chuangan signal conversion modules is multiple and corresponds to the number of the intrinsic safety sensors one by one, the input end of each intrinsic safety sensor An Chuangan 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 An Chuangan 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 non-intrinsic safety sensor, the non-intrinsic safety An Chuangan device signal conversion module is provided with a plurality of non-intrinsic safety sensor one-to-one correspondence, the input end of each non-intrinsic safety An Chuangan device signal conversion module is connected with the signal output end of the corresponding non-intrinsic safety sensor, and the output end of each non-intrinsic safety An Chuangan device signal conversion module is connected with the signal input interface of the MCU module.
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