CN216927011U - Engineering machinery circuit detector - Google Patents
Engineering machinery circuit detector Download PDFInfo
- Publication number
- CN216927011U CN216927011U CN202220251020.6U CN202220251020U CN216927011U CN 216927011 U CN216927011 U CN 216927011U CN 202220251020 U CN202220251020 U CN 202220251020U CN 216927011 U CN216927011 U CN 216927011U
- Authority
- CN
- China
- Prior art keywords
- resistor
- operational amplifier
- capacitor
- circuit
- adjusting circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004891 communication Methods 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 22
- 230000000087 stabilizing effect Effects 0.000 claims description 11
- 238000005070 sampling Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 abstract description 11
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 230000003750 conditioning effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model discloses an engineering machinery circuit detector which comprises a controller, a signal processing unit and a wireless signal transmitter, wherein the signal processing unit comprises a double operational amplifier feedback regulating circuit and a power amplifier stability regulating circuit, and the wireless signal transmitter and a user intelligent terminal form remote communication; the utility model remotely transmits the control instruction fault signal of the engineering machinery control circuit in a wireless transmission mode, can effectively ensure that a remote operator timely acquires the fault information, and eliminates the limitation existing in the application environment of the engineering machinery with complex working conditions or high risk; the signal processing unit is used for conditioning signals in the transmission process of the fault signals, so that the influence of the inrush of interference signals on the fault signals is effectively avoided, the accuracy of the engineering mechanical circuit detector is improved, and the anti-interference performance is good.
Description
Technical Field
The utility model relates to the technical field of engineering machinery control circuits, in particular to an engineering machinery circuit detector.
Background
Engineering machinery is an important component of the equipment industry, and plays an important role in various earth and stone construction projects, pavement construction and maintenance, mobile lifting loading and unloading operations or various comprehensive construction projects. According to the technical scheme of the utility model patent with the application number of 201911386709.9 and the name of 'control circuit and control method of engineering machinery', most main functions of the engineering machinery, such as starting, flameout and the like, can be controlled through the control circuit, so that the control efficiency is improved, and the operation is simplified. In the working process of the control circuit, corresponding action instruction signals are output to the controller through circuit switching value signals and analog quantity signals, the controller executes corresponding instructions, the action instruction signals cause control instruction failure due to inrush of interference signals under severe working environments, and operators are difficult to detect fault information in time particularly in the remote operation process, so that limitations exist in engineering machinery application environments with complex working conditions or high dangerousness.
The present invention provides a new solution to this problem.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, the present invention is directed to provide a circuit tester for engineering machinery.
The technical scheme for solving the problem is as follows: engineering machine tool circuit detector, including controller, signal processing unit and radio signal transmitter, the signal processing unit includes that feedback regulating circuit and power amplifier are stabilized to two fortune, the signal input part of two fortune feedback regulating circuit connects the fault signal output part of controller, the output of two fortune feedback regulating circuit is connected the input of power amplifier stabilized regulation circuit, the output of power amplifier stabilized regulation circuit is connected radio signal transmitter, radio signal transmitter forms remote communication with user's intelligent terminal.
Preferably, the dual operational amplifier feedback regulating circuit includes a resistor R1, one end of the resistor R1 is connected to the fault signal output terminal of the controller, the other end of the resistor R1 is connected to one end of the resistor R2 and the cathode of the zener diode DZ1, and is grounded through a capacitor C1, the anode of the zener diode DZ1 is grounded, the other end of the resistor R2 is connected to the non-inverting input terminal of the operational amplifier AR1 and one end of the capacitor C2, the inverting input terminal of the operational amplifier AR1 is connected to the inverting input terminal and the output terminal of the operational amplifier AR2, the output terminal of the operational amplifier AR1 is connected to the other end of the capacitor C2 and one end of the resistor R4, and is connected to one end of the resistor R2 through the sampling feedback module, and the non-inverting input terminal of the operational amplifier AR2 is connected to the other end of the resistor R4, and is grounded through a resistor R3.
Preferably, the sampling feedback module includes a resistor R5, one end of the resistor R5 is connected to the output end of the operational amplifier AR1, the other end of the resistor R5 is connected to one end of the resistor R7 and the collector of the transistor VT1, and is grounded through the resistor R6, the other end of the resistor R7 is connected to the base of the transistor VT1 and the cathode of the zener diode DZ2, the anode of the zener diode DZ2 is grounded, and the emitter of the transistor VT1 is connected to one end of the resistor R2.
Preferably, the power amplifier stabilizing and adjusting circuit comprises a MOS transistor Q1, the gate of the MOS transistor Q1 is connected to the output end of the operational amplifier AR1, the drain of the MOS transistor Q1 is connected to a +12V power supply, the source of the MOS transistor Q1 is grounded through a resistor R8, the source of the MOS transistor Q1 is connected to one end of a resistor R10 and one end of a capacitor C4 through a resistor R9 and a capacitor C3 which are connected in parallel, the other end of the resistor R10 is grounded, and the other end of the capacitor C4 is connected to the wireless signal transmitter.
Preferably, the wireless signal transmitter is a WiFi module.
Through the technical scheme, the utility model has the beneficial effects that:
1. the utility model remotely transmits the control instruction fault signal of the engineering machinery control circuit in a wireless transmission mode, can effectively ensure that a remote operator timely acquires the fault information, and eliminates the limitation existing in the application environment of the engineering machinery with complex working conditions or high risk;
2. the signal processing unit is used for conditioning signals in the transmission process of the fault signals, so that the influence of the inrush of interference signals on the fault signals is effectively avoided, the accuracy of the engineering mechanical circuit detector is improved, and the anti-interference performance is good.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
Detailed Description
The foregoing and other technical and scientific aspects, features and utilities of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings of fig. 1. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
Engineering machine tool circuit detector, including controller, signal processing unit and radio signal transmitter, the signal processing unit includes that feedback regulating circuit and power amplifier are stabilized to two fortune, the signal input part of feedback regulating circuit is connected to two fortune the fault signal output part of controller, the output of feedback regulating circuit is connected to two fortune the input of power amplifier stabilized to be adjusted the circuit, the output of power amplifier stabilized to be adjusted the circuit is connected radio signal transmitter, radio signal transmitter forms remote communication with user's intelligent terminal.
As shown in fig. 1, the dual operational amplifier feedback regulating circuit includes a resistor R1, one end of the resistor R1 is connected to the fault signal output terminal of the controller, the other end of the resistor R1 is connected to one end of the resistor R2 and the cathode of the zener diode DZ1, and is grounded through a capacitor C1, the anode of the zener diode DZ1 is grounded, the other end of the resistor R2 is connected to the non-inverting input terminal of the operational amplifier AR1 and one end of the capacitor C2, the inverting input terminal of the operational amplifier AR1 is connected to the inverting input terminal and the output terminal of the operational amplifier AR2, the output terminal of the operational amplifier AR1 is connected to the other end of the capacitor C2 and one end of the resistor R4, and is connected to one end of the resistor R2 through the sampling feedback module, and the non-inverting input terminal of the operational amplifier AR2 is connected to the other end of the resistor R4, and is grounded through a resistor R3.
The sampling feedback module comprises a resistor R5, one end of a resistor R5 is connected with the output end of the operational amplifier AR1, the other end of the resistor R5 is connected with one end of a resistor R7 and the collector of the triode VT1, the resistor R6 is grounded, the other end of the resistor R7 is connected with the base of the triode VT1 and the cathode of the zener diode DZ2, the anode of the zener diode DZ2 is grounded, and the emitter of the triode VT1 is connected with one end of a resistor R2.
The power amplifier stabilizing and adjusting circuit comprises a MOS tube Q1, the grid electrode of the MOS tube Q1 is connected with the output end of the operational amplifier AR1, the drain electrode of the MOS tube Q1 is connected with a +12V power supply, the source electrode of the MOS tube Q1 is grounded through a resistor R8, one end of the resistor R10 and one end of a capacitor C4 are connected through a resistor R9 and a capacitor C3 which are connected in parallel, the other end of the resistor R10 is grounded, and the other end of the capacitor C4 is connected with the wireless signal transmitter.
The specific working process and principle of the utility model are as follows: the controller collects action instruction signals input from the outside of the control circuit, logic analysis and judgment are carried out through the MCU, and when fault information occurs in the control instruction, the controller edits the fault information and carries out carrier wave transmission to the signal processing unit; firstly, a double operational amplifier feedback regulating circuit amplifies and enhances a fault signal, wherein a resistor R1 and a capacitor C1 form RC filtering to filter mechanical noise interference, then the amplitude of the signal is stabilized by a voltage stabilizing diode DZ1 and then the signal is sent to an operational amplifier AR1 for in-phase amplification, and a capacitor C2 plays a role in phase compensation in the amplification process to ensure the stability of a signal output waveform; meanwhile, the operational amplifier AR2 is used as a gyrator to perform feedback compensation on the output signal of the operational amplifier AR1, and the output signal is fed back to the inverting input end of the operational amplifier AR1, so that the input offset voltage of the operational amplifier AR1 is effectively counteracted, the null shift interference is suppressed, and the accuracy of fault signal enhancement processing is ensured; still be provided with sampling feedback module in the signal reinforcing process is put to two fortune, wherein, resistance R5 and R6 utilize resistance shunting principle to put output signal to two fortune and sample, and send into by resistance R7, the triode stabiliser that zener diode DZ2 and triode VT1 formed and enlarge stable the processing to the sampling signal, thereby guarantee that the sampling signal can form effective feedback, utilize fortune to put the closed loop feedback principle of ware and can effectively reduce the system error influence that interference signal brought, thereby promote fault signal transmission's validity.
The power amplifier stabilizing and adjusting circuit utilizes the MOS tube Q1 to amplify the power of the output signal of the double-operational amplifier feedback adjusting circuit, so that the signal reaches the emission intensity, and then RC buffer formed by the resistors R9, R10 and the capacitor C3 plays a good stabilizing role in the signal, so that surge interference caused by network fluctuation is avoided; and finally, coupling the signals through a capacitor C4 and then transmitting the signals into a wireless signal transmitter for remote transmission, wherein during specific setting, the wireless signal transmitter selects a WiFi module, remotely transmits fault signals to intelligent terminal equipment of a user through the WiFi module, and the user can check detailed fault information through a mobile phone, a tablet or other intelligent terminals, so that the running state of the engineering machinery can be detected and acquired in time.
In conclusion, the utility model remotely transmits the control instruction fault signal of the engineering machinery control circuit in a wireless transmission mode, can effectively ensure that a remote operator timely acquires fault information, and eliminates the limitation in the engineering machinery application environment with complex working conditions or high risk; the signal processing unit is used for conditioning signals in the transmission process of the fault signals, so that the influence of the inrush of interference signals on the fault signals is effectively avoided, the accuracy of the engineering mechanical circuit detector is improved, and the anti-interference performance is good.
While the present invention has been described in further detail with reference to specific embodiments thereof, it should not be construed that the present invention is limited thereto; for those skilled in the art to which the present invention pertains and related technologies, the extension, operation method and data replacement should fall within the protection scope of the present invention based on the technical solution of the present invention.
Claims (5)
1. Engineering machine tool circuit detector, including controller, signal processing unit and wireless signal transmitter, its characterized in that: the signal processing unit comprises a double-operational amplifier feedback adjusting circuit and a power amplifier stabilizing adjusting circuit, wherein a signal input end of the double-operational amplifier feedback adjusting circuit is connected with a fault signal output end of the controller, an output end of the double-operational amplifier feedback adjusting circuit is connected with an input end of the power amplifier stabilizing adjusting circuit, an output end of the power amplifier stabilizing adjusting circuit is connected with the wireless signal transmitter, and the wireless signal transmitter and the user intelligent terminal form remote communication.
2. The engineering machine circuit detector according to claim 1, characterized in that: the double-operational-amplifier feedback adjusting circuit comprises a resistor R1, one end of a resistor R1 is connected with a fault signal output end of the controller, the other end of the resistor R1 is connected with one end of a resistor R2 and a cathode of a voltage stabilizing diode DZ1, the other end of the resistor R1 is connected with the ground through a capacitor C1, an anode of the voltage stabilizing diode DZ1 is connected with the ground, the other end of the resistor R2 is connected with a non-inverting input end of an operational amplifier AR1 and one end of a capacitor C2, an inverting input end of the operational amplifier AR1 is connected with an inverting input end and an output end of an operational amplifier AR2, an output end of the operational amplifier AR1 is connected with the other end of the capacitor C2 and one end of a resistor R4, the non-inverting input end of the resistor R2 is connected through a sampling feedback module, and a non-inverting input end of the operational amplifier AR2 is connected with the other end of the resistor R4 and the ground through a resistor R3.
3. The engineering machine electric circuit detector according to claim 2, characterized in that: the sampling feedback module comprises a resistor R5, one end of a resistor R5 is connected with the output end of the operational amplifier AR1, the other end of the resistor R5 is connected with one end of a resistor R7 and the collector of the triode VT1, the resistor R6 is grounded, the other end of the resistor R7 is connected with the base of the triode VT1 and the cathode of the zener diode DZ2, the anode of the zener diode DZ2 is grounded, and the emitter of the triode VT1 is connected with one end of a resistor R2.
4. The engineering machine circuit detector according to claim 3, characterized in that: the power amplifier stabilizing and adjusting circuit comprises a MOS transistor Q1, the grid electrode of the MOS transistor Q1 is connected with the output end of an operational amplifier AR1, the drain electrode of the MOS transistor Q1 is connected with a +12V power supply, the source electrode of the MOS transistor Q1 is grounded through a resistor R8, the source electrode of the MOS transistor Q1 is connected with one end of a resistor R10 and one end of a capacitor C4 through a resistor R9 and a capacitor C3 which are connected in parallel, the other end of the resistor R10 is grounded, and the other end of the capacitor C4 is connected with the wireless signal transmitter.
5. The engineering machine circuit detector according to any one of claims 1 to 4, wherein: the wireless signal transmitter adopts a WiFi module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220251020.6U CN216927011U (en) | 2022-02-07 | 2022-02-07 | Engineering machinery circuit detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220251020.6U CN216927011U (en) | 2022-02-07 | 2022-02-07 | Engineering machinery circuit detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216927011U true CN216927011U (en) | 2022-07-08 |
Family
ID=82265047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220251020.6U Expired - Fee Related CN216927011U (en) | 2022-02-07 | 2022-02-07 | Engineering machinery circuit detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216927011U (en) |
-
2022
- 2022-02-07 CN CN202220251020.6U patent/CN216927011U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110136423B (en) | Intelligent building site construction environment detection device | |
| CN104597352A (en) | Power quality monitoring system | |
| CN112594007B (en) | Intelligent monitoring system for water inrush during deep tunnel construction | |
| CN111446976A (en) | Robot signal transmission system | |
| CN110806724B (en) | Remote monitoring device of numerical control machine tool | |
| CN216927011U (en) | Engineering machinery circuit detector | |
| CN111614334A (en) | Building construction scheduling instruction monitoring system based on cloud computing | |
| CN210183322U (en) | Portable wireless communication signal interference device | |
| CN210724698U (en) | Safety control system of power plant | |
| CN210244635U (en) | Road traffic signal lamp based on 5G technology | |
| CN112152655B (en) | Big data network communication security control platform | |
| CN209659279U (en) | Electrical communication system | |
| CN211979474U (en) | Remote control system based on cloud computing | |
| CN210052232U (en) | Remote control intelligent vending machine equipment | |
| CN209896444U (en) | Distribution box with high-low voltage linkage function | |
| CN218773409U (en) | Clothing automated production data console | |
| CN213024085U (en) | Intelligent temperature control panel | |
| CN216122750U (en) | Remote control system for air filter element production line | |
| CN209313824U (en) | A kind of monitoring management system for electronic bill-board | |
| CN221261640U (en) | Sensor wireless data dump and display device | |
| CN211554696U (en) | Computer electronic communication system | |
| CN216118888U (en) | Printing and dyeing boiler intelligence control system | |
| CN113611087B (en) | Movable gas boiler room alarm system | |
| CN209448734U (en) | A kind of electrical communication system | |
| CN220179726U (en) | Automatic control system of continuous ready-mixed concrete production line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220708 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |