CN218213162U - Universal meter intelligent module with functions of electrified alarm and self-locking - Google Patents
Universal meter intelligent module with functions of electrified alarm and self-locking Download PDFInfo
- Publication number
- CN218213162U CN218213162U CN202221135242.8U CN202221135242U CN218213162U CN 218213162 U CN218213162 U CN 218213162U CN 202221135242 U CN202221135242 U CN 202221135242U CN 218213162 U CN218213162 U CN 218213162U
- Authority
- CN
- China
- Prior art keywords
- universal meter
- self
- accommodating
- multimeter
- knob
- 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.)
- Active
Links
Images
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model belongs to the technical field of observe and control technique and instrument, concretely relates to electrified universal meter intelligent object who reports to police and self-locking function. The universal meter comprises a shell, a circuit board slot, a universal meter slot, a knob and a baffle, wherein the shell is provided with slots with different sizes, the limit switch slots are respectively used for accommodating limit switches, the battery slot is used for accommodating a battery, the circuit board slot is used for accommodating a single chip microcomputer and the like, the speaker slot is used for accommodating a speaker, a meter pen jack is connected with a universal meter jack, the universal meter slot is used for accommodating a universal meter body, the shell is further designed with the knob and the baffle, the knob is matched with the universal meter knob, and the baffle is connected with a universal meter slot cavity to fix the universal meter; the singlechip is connected with AD conversion chip, voice broadcast module, limit switch, pilot lamp, driver chip respectively, and AD conversion chip is connected with linear voltage regulator, and the voice broadcast module is connected with the speaker, and driver chip is connected with the relay. The utility model discloses can avoid appearing the safety accident that the position of table pen and selected gear do not accord and cause, can avoid the potential safety hazard that artifical error brought.
Description
Technical Field
The utility model belongs to the technical field of observe and control technique and instrument, concretely relates to live alarm and universal meter intelligent object of self-locking function.
Background
The universal meter can be used for measuring resistance, alternating current and direct current voltage, alternating current and direct current, capacitance, and can also be used for detecting the quality of diodes, triodes and voltage-stabilizing tubes. Multimeters are generally suitable for on-line voltage measurement, resistance measurement, and on-off measurement of electrical and instrumentation control devices. The multimeter has the following functions: the tester is used for searching a cable breakpoint, checking whether the cable is affected with damp, detecting short circuit or open circuit faults of an illuminating circuit, checking a control loop, checking a main circuit and the like \8230 \ 8230and the universal meter test pen at home and abroad is a common test pen and only has the function of connecting a tested object and a universal meter, and the ammeter has the following defects: if the voltage value is measured by the control loop, the current gear, the on-off gear or the resistance gear are mistakenly used by mistake, the power supply short circuit and the control function unexpected action are caused by the conduction of the measured loop, and the consequences of production line stop running, generator set trip, power transmission line trip, power supply loss, equipment damage, personal injury and the like are caused under severe conditions. Along with the continuous development of automation technology and intelligent manufacturing technology, the intellectuality in the universal meter field has slowly become the direction of universal meter research when getting off, but, the research achievement that has at present all directly reforms transform inside the universal meter, and simultaneously, the intelligent mode of most intelligent universal meters that appear on the market is the automatic switch-over of gear when measuring resistance, voltage, break-make, and the achievement is less in the aspect of voice prompt. On the whole, the multimeter intellectuality that appears in the existing market is all starting from the multimeter is inside, installs the singlechip additional inside and carries out the on-off control of circuit and realize, also namely need carry out the redesign design to the holistic internal circuit of multimeter, rather than improve, increase auxiliary function on the basis of original circuit.
In the research direction, the direction of refitting the universal meter at home and abroad starts from an internal circuit, and the existing intelligent universal meter generally has the following defects: when current switching voltage measurement is carried out, the meter pen still needs to be replaced manually, and the problem that gears are not matched with meter pen jacks exists; the defect of inaccurate identification exists in the aspect of intelligent identification. The improved multimeter has the advantages that the improved multimeter is less in achievement on the original basis of the handheld multimeter in an external packaging mode, the development work of the multimeter is reduced by improving the multimeter from the outside, and the function of automatically switching the pen-type meter can be realized, so that the intelligent research and realization of the multimeter are necessary by externally additionally packaging the external packaging.
Disclosure of Invention
An object of the utility model is to provide a live alarm and universal meter intelligent object of self-locking function. Utilize this universal meter intelligent object to assist the user to use the universal meter, mainly include: the method comprises the steps of voice prompting current gear information, connecting a meter pen to a jack of a corresponding gear, and detecting safety before a circuit is connected to a universal meter. After the gear selection information is confirmed, some gears need to be subjected to safety detection, namely, a detected circuit is analyzed to detect whether the gears accord with the gears selected by a user, and before the safety detection, the circuit is necessarily required to be disconnected, namely, whether the user connects a meter pen with the detected gears or not is necessarily judged.
The purpose is to solve various accidents and economic losses caused by the unmatched situation between an object to be measured and a measurement gear: if the voltage value is measured by the control loop, the current gear, the on-off gear or the resistance gear are mistakenly used by mistake, the power supply short circuit and the control function unexpected action are caused by the conduction of the measured loop, and the consequences of production line stop running, generator set trip, power transmission line trip, power supply loss, equipment damage, personal injury and the like are caused under severe conditions. Therefore, the set of protection module matched with the universal meter can technically avoid major risks such as equipment damage, personal injury, production line outage and the like caused by mismeasuring the live loop by mistake through using the resistance gear or the on-off gear of the universal meter by a person.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
a multimeter intelligent module with the functions of live alarm and self-locking,
mechanical structure part: the universal meter comprises a shell, a circuit board groove, a meter pen jack, a universal meter socket, a knob and a baffle, wherein the shell is provided with grooves with different sizes, the grooves are respectively limit switch grooves for accommodating limit switches, the battery groove is used for accommodating batteries, the circuit board groove is used for accommodating a single chip microcomputer, an A/D conversion chip, a linear voltage stabilizer, a voice broadcast module, an indicator lamp, a driving chip and a relay, the speaker groove is used for accommodating a speaker, the meter pen jack is connected with the universal meter jack, the universal meter socket is used for accommodating a universal meter body, the shell is also provided with the knob and the baffle, the knob is matched with the universal meter knob, and the baffle is connected with a cavity of the universal meter socket to fix the universal meter;
a circuit structure part: the singlechip is connected with AD conversion chip, voice broadcast module, limit switch, pilot lamp, driver chip respectively, and AD conversion chip is connected with linear voltage regulator, and the voice broadcast module is connected with the speaker, and driver chip is connected with the relay.
Limit switch groove, knob, baffle, battery jar, circuit board groove, speaker groove, pen-shape metre jack, universal meter slot all encapsulate in the shell, and the visible part in shell surface only pen-shape metre jack.
The single chip microcomputer is an STM32F103C8T6 single chip microcomputer, a GD32F103C8T6 single chip microcomputer or an APM32F103C8T6 single chip microcomputer.
The A/D conversion chip is an AD7606 chip or a CBM76AD06 chip.
The precision of the linear voltage stabilizer is less than 0.1V, and the maximum output current is greater than 1A.
The maximum power of the voice broadcasting module is not more than 3W.
The type of the limit switch is KW12.
The loudspeaker is 8 omega, 0.5W and 45mm in diameter.
The rated current of the relay is more than 10A, and the power supply is 5V.
1) Gear selection: the knob is rotated to a specified gear, the universal meter knob is driven to rotate to the specified gear, the baffle triggers the limit switch to close the contact at the moment, the contact closing signal is transmitted to the single chip microcomputer in a 0/1 mode, the single chip microcomputer judges the signal and confirms the corresponding specific gear, the judgment result signal is transmitted to the voice broadcasting module in a serial port communication mode, and the voice broadcasting module processes the signal into a standard statement and then transmits the standard statement to the loudspeaker for broadcasting;
2) Acquiring a measured signal: after gear selection is finished, the meter pen is connected into a tested loop, an analog quantity signal is obtained through the metal pen point and a lead, the analog quantity signal is filtered and clamped through the linear voltage stabilizer, converted into a signal range received by the A/D conversion chip and then transmitted to the A/D conversion chip, and the analog quantity signal collected in the tested loop is converted into a digital quantity signal capable of being processed by the single chip microcomputer;
3) And (3) processing a detected signal: after the measured signal is collected, the A/D conversion chip transmits a digital quantity signal to the single chip microcomputer through a serial port, the single chip microcomputer acquires the signal, compares the signal with a contact deflection signal transmitted by the limit switch, confirms the consistency of the two signals, only considers that the two signals are correct when consistent, and all the other results are incorrect;
4) And (3) broadcasting a detection result: after the measured signal is processed, the single chip microcomputer transmits a judgment result to the voice broadcasting module in a digital signal mode through a serial port, if the detected signal is consistent with the gear selection, the gear selection is considered to be correct, the single chip microcomputer outputs a signal to the driving chip, the driving chip receives the signal and outputs voltage capable of driving the relay to act to two ends of a relay coil, so that contacts of the relay coil are closed, and an original measuring loop of the multimeter is connected; if the signal detection result is not unanimous with the gear selection by survey, then regard as the gear selection incorrect, judge detailed nonconformity by the singlechip this moment to with the judgement result through serial ports output corresponding signal to voice broadcast module, voice broadcast module rethread standard statement drives the speaker and reports appointed suggestion statement, drives the pilot lamp scintillation simultaneously.
The utility model discloses the beneficial effect who gains does:
1. the technical means of intelligence gear selection has realized matching the universal meter and has chooseed the technical effect that gear and pen-shape metre correspond the jack position for use, and the correct pen-shape metre of automatic access connects the hole, compares traditional universal meter, can avoid appearing the pen-shape metre position and select the gear nonconformity incident that causes.
2. The technical means of stopping measurement intelligently achieves the technical effect of forbidding access under the condition that the selected gear cannot be accessed to the tested circuit under definite discovery, achieves protection of the multimeter and the tested circuit, and can avoid potential safety hazards caused by manual errors compared with the traditional multimeter.
3. The technical means of voice and prompt realizes the technical effect of giving clear prompt when improper operation is carried out manually, thereby finding problems and giving a corresponding correct operation method.
4. The intelligent technological means of universal meter has realized the technological effect to the intelligent transformation of original high accuracy universal meter, compares the intelligent universal meter on the market, on the basis that does not eliminate original universal meter, has realized the intelligent technological effect of universal meter.
Drawings
FIG. 1 is a schematic diagram of a mechanical structure of a multimeter intelligent module with a live alarm and self-locking function;
FIG. 2 is a schematic diagram of a circuit structure of an intelligent multimeter module with a live alarm and self-locking function;
FIG. 3 is a flowchart of a multimeter intelligent module operation with a live alarm and self-locking function;
in the figure: 1-limit switch groove; 2-knob; 3, a baffle plate; 4-a battery jar; 5-circuit board slot; 6-speaker slot; 7-meter pen jack; 8, inserting a universal meter into a slot; 9-a housing; 10-a single chip microcomputer; 11-a/D conversion chip; 12-a linear regulator; 13-a voice broadcast module; 14-limit switch; 15-indicator light; 16-a loudspeaker; 17-a driver chip; and 18, a relay.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The mechanical structure part comprises 1-9 in figure 1, it has the different groove of size to open on shell 9, be limit switch groove 1 respectively and be used for holding limit switch 14, battery jar 4 is used for holding the battery, circuit board groove 5 is used for holding singlechip 10, AD conversion chip 11, linear voltage regulator 12, voice broadcast module 13, pilot lamp 15, driver chip 17, relay 18, speaker groove 6 is used for holding speaker 16, pen-shape metre jack 7 links to each other with the universal meter jack, the pen-shape metre inserts the back from this, also switch on with the universal meter jack, universal meter slot 8 is used for holding the universal meter body, it has knob 2 and baffle 3 still to design on shell 9, knob 2 agrees with the universal meter knob, ensure that the universal meter knob corresponds in its rotation process and rotates to the assigned position. Baffle 3 is connected with 8 cavitys of universal meter slot, fixed universal meter. In the complete form, the parts 1-8 are all encapsulated in the shell 9, and the surface visible part is only the pen jack 7.
The circuit structure part comprises a single chip microcomputer 10, an A/D conversion chip 11, a linear voltage stabilizer 12, a voice broadcasting module 13, a limit switch 14, an indicator light 15, a loudspeaker 16, a driving chip 17 and a relay 18. Singlechip 10 is connected with AD conversion chip 11, voice broadcast module 13, limit switch 14, pilot lamp 15, driver chip 17 respectively, and AD conversion chip 11 is connected with linear voltage regulator 12, and voice broadcast module 13 is connected with speaker 16, and driver chip 17 is connected with relay 18.
1) Gear selection: the knob 2 is rotated to an appointed gear, and meanwhile, the universal meter knob is driven to rotate to the appointed gear, the baffle 3 triggers the contact of the limit switch 14 to be closed at the moment, a contact closing signal is transmitted to the single chip microcomputer 10 in a 0/1 mode, the single chip microcomputer 10 judges the signal and confirms the corresponding specific gear, a judgment result signal is transmitted to the voice broadcasting module 13 in a serial port communication mode, and the voice broadcasting module 13 processes the signal into a standard statement and then transmits the standard statement to the loudspeaker 16 for broadcasting;
2) Acquiring a measured signal: after gear selection is finished, the meter pen is connected into a tested loop, an analog quantity signal is obtained through a metal pen point and a lead, the analog quantity signal is filtered and clamped through a linear voltage stabilizer 12, is converted into a signal range received by an A/D conversion chip 11, is transmitted to the A/D conversion chip 11, and is converted into a digital quantity signal which can be processed by a single chip microcomputer 10;
3) And (3) processing a detected signal: after the measured signal is acquired, the A/D conversion chip 11 transmits a digital quantity signal to the single chip microcomputer 10 through a serial port, the single chip microcomputer acquires the signal, compares the signal with a contact displacement signal transmitted by the limit switch 14, confirms the consistency of the two signals, and only if the two signals are consistent, the two signals are correct, and the other results are incorrect;
4) And (3) broadcasting a detection result: after the measured signal is processed, the single chip microcomputer 10 transmits a judgment result to the voice broadcasting module 13 in a digital signal mode through a serial port, if the detection result of the measured signal is consistent with the gear selection, the gear selection is considered to be correct, the single chip microcomputer outputs a signal to the driving chip 17, the driving chip 17 receives the signal and outputs voltage capable of driving the relay 18 to act to two ends of a relay coil, so that contacts of the relay coil are closed, and an original measuring loop of the multimeter is connected; if by survey signal detection result and gear selection inconsistent, then regard as the gear selection incorrect, judge detailed inconsistent circumstances (if use resistance gear measuring voltage signal) by the singlechip this moment to correspond signal to voice broadcast module 13 through serial ports output with the judged result, voice broadcast module 13 rethread standard statement, drive speaker 16 reports appointed suggestion statement, drives the flashing of pilot lamp 15 simultaneously.
Element definition requirements:
a battery: 7.4V, 6800mAh, 4 sections, two strings and 18650mAh;
the single chip microcomputer 10: the control system is limited to an STM32F103C8T6 singlechip, and can be replaced by a GD32F103C8T6 singlechip and an APM32F103C8T6 singlechip;
a/D conversion chip 11: limited to AD7606 chip, CBM76AD06 chip can be used instead;
linear regulator 12: the precision is less than 0.1V, and the maximum output current is greater than 1A;
voice broadcast module 13: the maximum power is not more than 3W;
limit switch 14: silver contact, 5A, 250V microswitch, model KW12;
the indicator light 15:3.0-3.2V, 20mA, 1200-1500mcd;
the speaker 16:8 omega, 0.5W, diameter 45mm;
the relay 18: and a relay with rated current above 10A and power supply of 5V.
Claims (9)
1. The utility model provides a universal meter intelligent object of electrified warning and self-locking function which characterized in that:
mechanical structure part: the universal meter comprises a shell, and is characterized in that grooves with different sizes are formed in the shell, the grooves are respectively limit switch grooves and are used for accommodating limit switches, battery grooves are used for accommodating batteries, a circuit board groove is used for accommodating a single chip microcomputer, an A/D conversion chip, a linear voltage stabilizer, a voice broadcasting module, an indicator lamp, a driving chip and a relay, a loudspeaker groove is used for accommodating a loudspeaker, a meter pen jack is connected with a universal meter jack, a universal meter slot is used for accommodating a universal meter body, a knob and a baffle are further designed on the shell, the knob is matched with a universal meter knob, and the baffle is connected with a universal meter slot cavity to fix the universal meter;
a circuit structure part: the singlechip is connected with AD conversion chip, voice broadcast module, limit switch, pilot lamp, driver chip respectively, and AD conversion chip is connected with linear voltage regulator, and the voice broadcast module is connected with the speaker, and driver chip is connected with the relay.
2. The multimeter intelligent module with the functions of alarming and self-locking according to claim 1, characterized in that: limit switch groove, knob, baffle, battery jar, circuit board groove, speaker groove, pen-shape metre jack, universal meter slot all encapsulate in the shell, and the visible part in shell surface only pen-shape metre jack.
3. The multimeter intelligent module with the functions of electric alarm and self-locking according to claim 1, characterized in that: the single chip microcomputer is an STM32F103C8T6 single chip microcomputer, a GD32F103C8T6 single chip microcomputer or an APM32F103C8T6 single chip microcomputer.
4. The multimeter intelligent module with the functions of electric alarm and self-locking according to claim 1, characterized in that: the A/D conversion chip is an AD7606 chip or a CBM76AD06 chip.
5. The multimeter intelligent module with the functions of electric alarm and self-locking according to claim 1, characterized in that: the precision of the linear voltage stabilizer is less than 0.1V, and the maximum output current is greater than 1A.
6. The multimeter intelligent module with the functions of electric alarm and self-locking according to claim 1, characterized in that: the maximum power of the voice broadcasting module is not more than 3W.
7. The multimeter intelligent module with the functions of electric alarm and self-locking according to claim 1, characterized in that: the type of the limit switch is KW12.
8. The multimeter intelligent module with the functions of alarming and self-locking according to claim 1, characterized in that: the loudspeaker is 8 omega, 0.5W and 45mm in diameter.
9. The multimeter intelligent module with the functions of electric alarm and self-locking according to claim 1, characterized in that: the rated current of the relay is above 10A, and the power supply is 5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221135242.8U CN218213162U (en) | 2022-05-11 | 2022-05-11 | Universal meter intelligent module with functions of electrified alarm and self-locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221135242.8U CN218213162U (en) | 2022-05-11 | 2022-05-11 | Universal meter intelligent module with functions of electrified alarm and self-locking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218213162U true CN218213162U (en) | 2023-01-03 |
Family
ID=84646885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221135242.8U Active CN218213162U (en) | 2022-05-11 | 2022-05-11 | Universal meter intelligent module with functions of electrified alarm and self-locking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218213162U (en) |
-
2022
- 2022-05-11 CN CN202221135242.8U patent/CN218213162U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205809178U (en) | Instrument for measuring DC resistance | |
| CN104569751A (en) | Device and method for detecting insulating property of high-voltage ancillary equipment of electromobile | |
| CN104569601B (en) | The apparatus and method that insulating properties detection is carried out to the high voltage control box of electric automobile | |
| CN102288849A (en) | Highway addressable remote transducer (HART) loop fault diagnosis instrument and method | |
| CN212844307U (en) | Vacuum switch mechanical characteristic test system based on Internet of things | |
| CN218213162U (en) | Universal meter intelligent module with functions of electrified alarm and self-locking | |
| CN102735896A (en) | Digital universal meter with car failure diagnosis function and realization method thereof | |
| CN204515021U (en) | The high voltage control box of electric automobile is carried out to the device of insulating property detection | |
| CN207799007U (en) | The Insulation Inspection System of the anti-reverse charge protection of direct-current charging post | |
| CN211785990U (en) | Current precision testing device of automobile battery management system | |
| CN205541252U (en) | Electric fire detector of taking short circuit, opening circuit and report to police | |
| CN115128323A (en) | Universal meter intelligent module with functions of electrified alarm and self-locking | |
| CN208520983U (en) | A kind of metering device on-site calibrator | |
| CN208921814U (en) | Electric car harness switching detection device | |
| CN112230106B (en) | Detection device and method for switch external local switching-on/off controller | |
| CN211452697U (en) | Wireless torque detection module | |
| CN208537602U (en) | A kind of emulation clamp on amperemeter | |
| CN103823151B (en) | Testing method of automotive electromagnetic relay short-circuit tester | |
| CN208847828U (en) | A kind of power supply product tester | |
| CN105890808A (en) | Temperature calibrator for main transformer | |
| CN209327437U (en) | A kind of AC current detector | |
| CN208239092U (en) | A kind of hand-held detection device of electric car | |
| CN105866703A (en) | Simulation automobile starting intelligent tester device and testing method | |
| CN207114671U (en) | A kind of Intellectual failure monitor of motor vehicle | |
| CN205691751U (en) | A kind of simulated automotive starts intelligent test instrument apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |