CN207473690U - A kind of Skill Competition instrument - Google Patents
A kind of Skill Competition instrument Download PDFInfo
- Publication number
- CN207473690U CN207473690U CN201721671811.XU CN201721671811U CN207473690U CN 207473690 U CN207473690 U CN 207473690U CN 201721671811 U CN201721671811 U CN 201721671811U CN 207473690 U CN207473690 U CN 207473690U
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- microcontroller
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Abstract
The utility model discloses a kind of Skill Competition instrument, including：External power supply, internal electric source, voltage comparator, the first field-effect tube, the second field-effect tube, time switch, timer, microcontroller, indicator light and loudspeaker；Internal electric source is connect with the source electrode of the first field-effect tube；The output terminal of voltage comparator is connect with the grid of the first field-effect tube；The drain electrode of first field-effect tube is connect with the drain electrode of the second field-effect tube；The grid of second field-effect tube is connect with external power supply；The input terminal of voltage comparator is electrically connected by time switch and external power supply；The source electrode of second field-effect tube is connect with timer；External power supply is also connect by time switch with microcontroller.When in use, after the predetermined time is reached, time switch disconnects, each component dead electricity in circuit, timer are switched to by field-effect tube and are powered by internal electric source, can show the used time, the technical issues of solving after main control module power-off is ineffective, can not realizing clocking capability.
Description
Technical field
The utility model is related to contest Instrument technology field more particularly to a kind of Skill Competition instrument.
Background technology
For Skill Competition instrument dedicated for timed game, major function has electronic system functional fault exclusion, Password Input, close
Code input is to wrong prompting, self-clocking, timing time to the functions such as locking.Current Skill Competition instrument not by clocking capability with
Main control module detaches, and after main control module power-off is ineffective, whole equipment will paralyse, so as to realize timing work(
Energy.
Utility model content
The utility model is solved in the prior art by providing a kind of Skill Competition instrument when main control module power-off loses
After effect, the technical issues of can not realizing clocking capability.
The utility model provides a kind of Skill Competition instrument, including：External power supply, internal electric source, voltage comparator, first
Field-effect tube, the second field-effect tube, time switch, timer, microcontroller, indicator light and loudspeaker；The internal electric source with it is described
The source electrode of first field-effect tube is electrically connected；The output terminal of the voltage comparator and the grid of first field-effect tube are electrical
Connection；The drain electrode of first field-effect tube is electrically connected with the drain electrode of second field-effect tube；Second field-effect tube
Grid and the external power supply be electrically connected；The input terminal of the voltage comparator passes through the time switch and the outside
Power supply is electrically connected；The source electrode of second field-effect tube is electrically connected with the timer；The external power supply also passes through institute
Time switch is stated to be electrically connected with the microcontroller；The microcontroller is electrically connected with the indicator light, the loudspeaker.
Further, it further includes：Rectifier bridge；The time switch is electrically connected by the rectifier bridge and the microcontroller
It connects.
Further, it further includes：Filter capacitor；The filter capacitor be arranged on the rectifier bridge and the microcontroller it
Between.
Further, it further includes：Zener diode and resistance；The anode of the zener diode and the first of the resistance
End is electrically connected, and the cathode of the zener diode and the first end of the filter capacitor are electrically connected；The second of the resistance
End and the second end of the filter capacitor are electrically connected.
Further, the rectifier bridge includes：First diode, the second diode, third diode, the 4th diode,
5th diode, the 6th diode, transformer, the first capacitance, the second capacitance, third capacitance and the 4th capacitance；The transformer
Primary coil and the time switch be electrically connected；One end of the secondary coil of the transformer and first diode
Anode is electrically connected, and the other end of the secondary coil of the transformer and the first end of first capacitance are electrically connected；It is described
The cathode of first diode and the anode of second diode are electrically connected；The second end of first capacitance is electrically connected at
Between the anode of the cathode of first diode and second diode；The cathode of second diode and the third
The anode of diode is electrically connected；The cathode of the third diode and the anode of the 4th diode are electrically connected；It is described
The cathode of 4th diode and the anode of the 5th diode are electrically connected；The cathode of 5th diode and the monolithic
Machine is electrically connected；The anode of 6th diode is electrically connected with the first end of first capacitance, the 6th diode
Cathode and the microcontroller be electrically connected；The first end of second capacitance and the anode of first diode electrically connect
Connect, the second end of second capacitance be electrically connected at the cathode of second diode and the third diode anode it
Between；The first end of the third capacitance and the second end of first capacitance are electrically connected, the second end electricity of the third capacitance
Property is connected between the cathode of the third diode and the anode of the 4th diode, and the second end of the third capacitance is also
It is electrically connected with the cathode of the 6th diode；The first end of 4th capacitance is electrically connected at second diode
Between the anode of cathode and the third diode, the second end of the 4th capacitance is electrically connected at the 4th diode
Between the anode of cathode and the 5th diode.
Further, it further includes：Matrix press-key module；The matrix press-key module is electrically connected with the microcontroller.
Further, it further includes：First triode；The base of the signal output end of the microcontroller and first triode
Pole is electrically connected；The collector of first triode connects power supply, emitter and the indicator light electricity of first triode
Property connection.
Further, it further includes：Second triode；The base of the signal output end of the microcontroller and second triode
Pole is electrically connected；The collector of second triode connects power supply, and the emitter and the loudspeaker of second triode are electrical
Connection.
Further, the microcontroller is AT89C51 or AT89C52 microcontrollers.
The one or more technical solutions provided in the utility model, have at least the following technical effects or advantages：
When the utility model is used, after the predetermined time is reached, time switch disconnects, each component dead electricity in circuit,
Timer is switched to by field-effect tube and is powered by internal electric source, so as to show the used time, thus solves the prior art
In after main control module power-off is ineffective, the technical issues of can not realizing clocking capability.
Description of the drawings
Fig. 1 is the module map of Skill Competition instrument that the utility model embodiment provides；
Fig. 2 is a part of circuit diagram of Skill Competition instrument that the utility model embodiment provides；
Fig. 3 is the circuit diagram of matrix press-key module in the Skill Competition instrument that the utility model embodiment provides；
Fig. 4 is another part circuit diagram of Skill Competition instrument that the utility model embodiment provides；
Fig. 5 is the circuit diagram of display in the Skill Competition instrument that the utility model embodiment provides.
Specific embodiment
The utility model embodiment is solved in the prior art by providing a kind of Skill Competition instrument when main control module breaks
After electricity is ineffective, the technical issues of can not realizing clocking capability.
The technical scheme in the embodiment of the utility model is to solve the above problems, general thought is as follows：
When in use, after the predetermined time is reached, time switch disconnects the utility model embodiment, each component in circuit
Dead electricity, timer are switched to by field-effect tube and are powered by internal electric source, so as to show the used time, are thus solved existing
In technology after main control module power-off is ineffective, the technical issues of can not realizing clocking capability.
Above-mentioned technical proposal in order to better understand, in conjunction with appended figures and specific embodiments to upper
Technical solution is stated to be described in detail.
Referring to Fig. 1 and Fig. 2, Skill Competition instrument that the utility model embodiment provides, including：External power supply, internal electric source,
Voltage comparator, the first field-effect tube FET1, the second field-effect tube FET2, time switch, timer, microcontroller, indicator light and
Loudspeaker；The source electrode of internal electric source and the first field-effect tube FET1 are electrically connected；The output terminal of voltage comparator and the first field-effect
The grid of pipe FET1 is electrically connected；The drain electrode of first field-effect tube FET1 is electrically connected with the drain electrode of the second field-effect tube FET2；
The grid of second field-effect tube FET2 is electrically connected with external power supply；The input terminal of voltage comparator passes through time switch and outside
Power supply is electrically connected；The source electrode of second field-effect tube FET2 is electrically connected with timer；External power supply also by time switch with
Microcontroller is electrically connected；Microcontroller is electrically connected with indicator light, loudspeaker.
In the present embodiment, when external power supply works normally, if the input terminal of voltage comparator is more than pre- for inputting
If the voltage of first threshold, then the first field-effect tube FET1 is connected, disconnects the second field-effect tube FET2, to close internal electric source,
So as to prevent the voltage output of internal electric source, timer operation is driven by the output voltage of external power supply at this time；Work as external power supply
It does not work and (such as powers off) or external power supply is used to export when being less than the DC voltage for presetting second threshold, the first field-effect is connected
Pipe FET1 and the second field-effect tube FET2 to open internal electric source, at this time carries out timer by the output voltage of internal electric source
Power supply, so as to ensure that timer in the case where external power supply disconnects, can continue to work.
The structure of the utility model embodiment is specifically described, is further included：Rectifier bridge；Time switch passes through rectifier bridge
It is electrically connected with microcontroller.
The structure of the utility model embodiment is further described, is further included：Filter capacitor；Filter capacitor is arranged on
Between rectifier bridge and microcontroller.
The structure of the utility model embodiment is illustrated further, is further included：Light-emitting diode LED 1；Luminous two
Pole pipe LED1 is arranged between filter capacitor and rectifier bridge.
In order to ensure the utility model embodiment can steady operation, further include：Zener diode D3 and resistance R27；Surely
The anode of diode D3 is pressed to be electrically connected with the first end of resistance R27, the cathode of zener diode D3 and the first of filter capacitor
End is electrically connected；The second end of resistance R27 and the second end of filter capacitor are electrically connected.
In order to further ensure the utility model embodiment can steady operation, further include：W7805 three-terminal voltage-stabilizings integrate electricity
Road；The input terminal of w7805 circuit of three-terminal voltage-stabilizing integrated is electrically connected with filter capacitor, w7805 circuit of three-terminal voltage-stabilizing integrated it is defeated
Outlet and the second end of resistance R27 are electrically connected, the ground terminal ground connection of w7805 circuit of three-terminal voltage-stabilizing integrated.
In order to ensure w7805 circuit of three-terminal voltage-stabilizing integrated can steady operation, further include：Diode D2；Diode D2's
The output terminal of anode and w7805 circuit of three-terminal voltage-stabilizing integrated is electrically connected, and cathode and the w7805 three-terminal voltage-stabilizings of diode D2 integrate
The input terminal of circuit is electrically connected.
In the present embodiment, filter capacitor includes at least the filter capacitor there are three types of specification, i.e. filter capacitor C1, filtered electrical
Hold C2 and filter capacitor C8；Light-emitting diode LED 1, filter capacitor C1, filter capacitor C8 and filter capacitor C2 are successively set on whole
It flows between bridge and the input terminal of w7805 circuit of three-terminal voltage-stabilizing integrated；It is provided in the output terminal of w7805 circuit of three-terminal voltage-stabilizing integrated
Storage capacitor C3；The cathode of zener diode D3 is electrically connected with the first end of storage capacitor C3；The second end of resistance R27 and storage
The second end of energy capacitance C3 is electrically connected；Load D6 is additionally provided in the output terminal of w7805 circuit of three-terminal voltage-stabilizing integrated.
The structure of rectifier bridge is specifically described, rectifier bridge includes：First diode, the second diode, the three or two pole
Pipe, the 4th diode, the 5th diode, the 6th diode, transformer, the first capacitance, the second capacitance, third capacitance and the 4th electricity
Hold；The primary coil of transformer is electrically connected with time switch；One end of the secondary coil of transformer and the first diode are just
Pole is electrically connected, and the first end of the other end of the secondary coil of transformer and the first capacitance is electrically connected；First diode is born
Pole and the anode of the second diode are electrically connected；The second end of first capacitance is electrically connected at the cathode and second of the first diode
Between the anode of diode；The cathode of second diode is electrically connected with the anode of third diode；The cathode of third diode
It is electrically connected with the anode of the 4th diode；The cathode of 4th diode and the anode of the 5th diode are electrically connected；Five or two
The cathode of pole pipe is electrically connected with microcontroller；The anode of 6th diode and the first end of the first capacitance are electrically connected, and the six or two
The cathode of pole pipe is electrically connected with microcontroller；The first end of second capacitance and the anode of the first diode are electrically connected, the second electricity
The second end of appearance is electrically connected between the cathode of the second diode and the anode of third diode；The first end of third capacitance with
The second end of first capacitance is electrically connected, and the second end of third capacitance is electrically connected at cathode and the four or two pole of third diode
Between the anode of pipe, the second end of third capacitance is also electrically connected with the cathode of the 6th diode；The first end electricity of 4th capacitance
Property is connected between the cathode of the second diode and the anode of third diode, and the second end of the 4th capacitance is electrically connected at the 4th
Between the anode of the cathode of diode and the 5th diode.
The structure of the utility model embodiment is illustrated further, is further included：Matrix press-key module；Matrix press-key
Module is electrically connected with microcontroller.
Referring to Fig. 3, in the present embodiment, matrix press-key module is 4*4 matrix press-keys.
Referring to Fig. 4, the utility model embodiment further includes：First triode Q2；The signal output end of microcontroller and first
The base stage of triode Q2 is electrically connected；The collector of first triode Q2 connects power supply, the emitter of the first triode Q2 and instruction
Lamp is electrically connected.
Specifically, the signal output end of microcontroller is electrically connected by the base stage of resistance R6 and the first triode Q2；First
The collector of triode Q2 connects power supply by resistance R20, and emitter and the indicator light of the first triode Q2 are electrically connected.
Further, the utility model embodiment further includes：Second triode Q1；The signal output end of microcontroller and second
The base stage of triode Q1 is electrically connected；The collector of second triode Q1 connects power supply, the emitter and loudspeaker of the second triode Q1
LS1 is electrically connected.
Specifically, the signal output end of microcontroller is electrically connected by the base stage of resistance R7 and the second triode Q1；Second
The collector of triode Q1 connects power supply, and emitter and the loudspeaker LS1 of the second triode Q1 are electrically connected.
Referring to Fig. 5, the utility model embodiment further includes：Display lcd；Display lcd is electrically connected with microcontroller.
In the present embodiment, microcontroller is AT89C51 or AT89C52 microcontrollers.
When the utility model embodiment when in use, some trouble points can be set on circuit, to be grasped to personnel
Technical ability test.Specifically, referring to Fig. 2, Fig. 3, Fig. 4 and Fig. 5, in the present embodiment, altogether there is provided 27 trouble points,
Also just there are 27 connectors.Wherein, some connectors need correct connection competence exertion effect, and some connectors do not need to line
(to confuse personnel to be tested).The only correct connection circuit of personnel to be tested, could realize corresponding function.Such as：As long as
Jointing 1 and connector 26, connector 10 and connector 25 can just make indicator light (light emitting diode D4) shine；On this basis, then
Connector 17 and connector 18 are connected, connector 19 and connector 20 are connected, connector 21 and connector 22 are connected, loudspeaker LS1 can just be sent out
Sound；In another example as long as jointing 1 and connector 26, connector 10 and connector 25, connector 12 and connector 23, display lcd will be shown
Show.If each connector of incorrect link, can not realizing corresponding function, (such as light emitting diode D4 shines, loudspeaker LS1 sounding, shows
Device LCD is shown).In use, timer carries out timing.After the predetermined time is reached, time switch disconnects, in circuit
Each component dead electricity, personnel can not continue to connect circuit, and timer is switched to by field-effect tube and is powered by internal electric source,
So as to show the used time of everyone, to evaluate the situation that everyone acquires skill.
【Technique effect】
1st, when in use, after the predetermined time is reached, time switch disconnects the utility model embodiment, each portion in circuit
Part dead electricity, timer are switched to by field-effect tube and are powered by internal electric source, so as to show the used time, are thus solved existing
Have in technology after main control module power-off is ineffective, the technical issues of can not realizing clocking capability.
2nd, by the use to filter capacitor, interference is eliminated, so as to ensure that the normal work of the utility model embodiment
Make.
Although the preferred embodiment of the utility model has been described, those skilled in the art once know substantially
Creative concept, then additional changes and modifications may be made to these embodiments.So appended claims are intended to be construed to wrap
It includes preferred embodiment and falls into all change and modification of the scope of the utility model.
Obviously, those skilled in the art can carry out the utility model various modification and variations without departing from this practicality
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (9)
1. a kind of Skill Competition instrument, which is characterized in that including：External power supply, internal electric source, voltage comparator, the first field-effect
Pipe, the second field-effect tube, time switch, timer, microcontroller, indicator light and loudspeaker；The internal electric source with described first
The source electrode of effect pipe is electrically connected；The output terminal of the voltage comparator and the grid of first field-effect tube are electrically connected；
The drain electrode of first field-effect tube is electrically connected with the drain electrode of second field-effect tube；The grid of second field-effect tube
It is electrically connected with the external power supply；The input terminal of the voltage comparator passes through the time switch and external power supply electricity
Property connection；The source electrode of second field-effect tube is electrically connected with the timer；The external power supply also passes through the timing
Switch is electrically connected with the microcontroller；The microcontroller is electrically connected with the indicator light, the loudspeaker.
2. Skill Competition instrument as described in claim 1, which is characterized in that further include：Rectifier bridge；The time switch passes through institute
Rectifier bridge is stated to be electrically connected with the microcontroller.
3. Skill Competition instrument as claimed in claim 2, which is characterized in that further include：Filter capacitor；The filter capacitor setting
Between the rectifier bridge and the microcontroller.
4. Skill Competition instrument as claimed in claim 3, which is characterized in that further include：Zener diode and resistance；The voltage stabilizing
The first end of the anode of diode and the resistance is electrically connected, and the of the cathode of the zener diode and the filter capacitor
One end is electrically connected；The second end of the resistance and the second end of the filter capacitor are electrically connected.
5. Skill Competition instrument as claimed in claim 2, which is characterized in that the rectifier bridge includes：First diode, the two or two
Pole pipe, third diode, the 4th diode, the 5th diode, the 6th diode, transformer, the first capacitance, the second capacitance,
Three capacitances and the 4th capacitance；The primary coil of the transformer is electrically connected with the time switch；The secondary of the transformer
The anode of one end of coil and first diode is electrically connected, the other end of the secondary coil of the transformer and described the
The first end of one capacitance is electrically connected；The cathode of first diode and the anode of second diode are electrically connected；Institute
The second end for stating the first capacitance is electrically connected between the cathode of first diode and the anode of second diode；Institute
The anode of cathode and the third diode for stating the second diode is electrically connected；The cathode of the third diode and described the
The anode of four diodes is electrically connected；The cathode of 4th diode is electrically connected with the anode of the 5th diode；Institute
The cathode and the microcontroller for stating the 5th diode are electrically connected；The of the anode of 6th diode and first capacitance
One end is electrically connected, and cathode and the microcontroller of the 6th diode are electrically connected；The first end of second capacitance with
The anode of first diode is electrically connected, and the second end of second capacitance is electrically connected at the negative of second diode
Between the anode of pole and the third diode；The first end of the third capacitance and the second end of first capacitance electrically connect
Connect, the second end of the third capacitance be electrically connected at the cathode of the third diode and the 4th diode anode it
Between, the second end of the third capacitance is also electrically connected with the cathode of the 6th diode；The first end of 4th capacitance
It is electrically connected between the cathode of second diode and the anode of the third diode, the second end of the 4th capacitance
It is electrically connected between the cathode of the 4th diode and the anode of the 5th diode.
6. Skill Competition instrument as described in claim 1, which is characterized in that further include：Matrix press-key module；The matrix press-key
Module is electrically connected with the microcontroller.
7. Skill Competition instrument as described in claim 1, which is characterized in that further include：First triode；The letter of the microcontroller
The base stage of number output terminal and first triode is electrically connected；The collector of first triode connects power supply, and described first
The emitter of triode is electrically connected with the indicator light.
8. Skill Competition instrument as described in claim 1, which is characterized in that further include：Second triode；The letter of the microcontroller
The base stage of number output terminal and second triode is electrically connected；The collector of second triode connects power supply, and described second
The emitter of triode is electrically connected with the loudspeaker.
9. the Skill Competition instrument as described in any one of claim 1-8, which is characterized in that the microcontroller for AT89C51 or
AT89C52 microcontrollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721671811.XU CN207473690U (en) | 2017-12-05 | 2017-12-05 | A kind of Skill Competition instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721671811.XU CN207473690U (en) | 2017-12-05 | 2017-12-05 | A kind of Skill Competition instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207473690U true CN207473690U (en) | 2018-06-08 |
Family
ID=62257161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721671811.XU Expired - Fee Related CN207473690U (en) | 2017-12-05 | 2017-12-05 | A kind of Skill Competition instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207473690U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111624912A (en) * | 2020-05-22 | 2020-09-04 | 广州裕芯电子科技有限公司 | Portable fan control chip, circuit and method |
-
2017
- 2017-12-05 CN CN201721671811.XU patent/CN207473690U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111624912A (en) * | 2020-05-22 | 2020-09-04 | 广州裕芯电子科技有限公司 | Portable fan control chip, circuit and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180608 Termination date: 20181205 |