CN107885108B - Control device for electronic equipment - Google Patents
Control device for electronic equipment Download PDFInfo
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- CN107885108B CN107885108B CN201711368807.0A CN201711368807A CN107885108B CN 107885108 B CN107885108 B CN 107885108B CN 201711368807 A CN201711368807 A CN 201711368807A CN 107885108 B CN107885108 B CN 107885108B
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- 238000001514 detection method Methods 0.000 claims abstract description 26
- 239000003990 capacitor Substances 0.000 claims description 32
- 238000007599 discharging Methods 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000010586 diagram Methods 0.000 description 6
- 230000000630 rising effect Effects 0.000 description 6
- 230000000087 stabilizing effect Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
Abstract
The invention relates to a control device of electronic equipment, which comprises a signal detection circuit for acquiring a trigger action signal, a main control circuit for outputting a driving signal when the trigger action signal is consistent with a preset trigger action signal, and a driving circuit for outputting a state switching signal according to the trigger action signal and the driving signal, wherein the state switching signal is used for switching the electronic equipment to be in an on state or an off state; the signal detection circuit is respectively connected with the main control circuit and the driving circuit, the main control circuit is connected with the driving circuit, the driving circuit is connected with an external power supply, the opening mode and the closing mode of the electronic equipment can be defined by a user through the control device of the electronic equipment, and when the detected trigger action signal is consistent with the preset trigger action signal, the electronic equipment can correspondingly switch on or switch off the external power supply, so that the automatic selection of the opening mode and the closing mode of the electronic equipment can be realized, and different requirements of the user are met.
Description
Technical Field
The present invention relates to the field of electronic device control technologies, and in particular, to a control device for an electronic device.
Background
With the development of science and technology, automobiles are becoming more popular, and in-car electronic communication devices such as automobile data recorders, navigator and the like are generally installed in the automobiles.
Conventionally, control over the vehicle-mounted electronic communication device is realized through manual startup and shutdown, and the control mode is single, manual operation is required by a user, and the requirements of the user cannot be met.
Disclosure of Invention
In view of the above, it is necessary to provide a control device for an electronic apparatus capable of autonomously selecting a control scheme.
A control apparatus of an electronic device, comprising:
the electronic equipment comprises a signal detection circuit for acquiring a trigger action signal, a main control circuit for outputting a driving signal when the trigger action signal is consistent with a preset trigger action signal, and a driving circuit for outputting a state switching signal according to the trigger action signal and the driving signal, wherein the state switching signal is used for switching the electronic equipment to be in an on state or an off state;
the signal detection circuit is respectively connected with the main control circuit and the driving circuit, the main control circuit is connected with the driving circuit, and the driving circuit is connected with an external power supply.
The control device of the electronic equipment comprises a signal detection circuit for acquiring the trigger action signal, a main control circuit for outputting a driving signal when the trigger action signal is consistent with a preset trigger action signal, and a driving circuit for outputting a state switching signal according to the trigger action signal and the driving signal; the signal detection circuit is respectively connected with the main control circuit and the driving circuit, the main control circuit is connected with the driving circuit, the driving circuit is connected with an external power supply, the opening mode and the closing mode of the electronic equipment can be defined by a user through the control device of the electronic equipment, and when the detected trigger action signal is consistent with the preset trigger action signal, the electronic equipment can correspondingly switch on or switch off the external power supply, so that the automatic selection of the opening mode and the closing mode of the electronic equipment can be realized, and different requirements of the user are met.
Drawings
FIG. 1 is a schematic diagram of a control device of an electronic device according to an embodiment;
FIG. 2 is a schematic structural diagram of a control device of an electronic device according to another embodiment;
FIG. 3 is a circuit diagram of a signal conversion circuit in a control device of an electronic device in one embodiment;
fig. 4 is a circuit diagram of a driving circuit in a control device of an electronic apparatus in one embodiment.
Detailed Description
As shown in fig. 1, a control device of an electronic apparatus includes:
a signal detection circuit 100 for acquiring a trigger action signal, a main control circuit 200 for outputting a driving signal when the trigger action signal is consistent with a preset trigger action signal, and a driving circuit 300 for outputting a state switching signal for switching an electronic device to be in an on state or an off state according to the trigger action signal and the driving signal;
the signal detection circuit 100 is connected to the main control circuit 200 and the driving circuit 300, respectively, the main control circuit 200 is connected to the driving circuit 300, and the driving circuit 300 is connected to an external power source.
The signal detection circuit 100 is configured to obtain a trigger action signal, where the trigger action signal may be a manual trigger action signal, or may be an automatic/manual trigger action signal, where the manual trigger action signal may be a signal indicating a state of a manual switch, and the automatic trigger action signal may be a rising edge signal generated by ignition of an automobile or a falling edge signal generated by flameout of the automobile.
In one embodiment, the signal detection circuit for acquiring the manual trigger action signal may specifically include a first resistor, a second resistor and a diode, where a first end of the first resistor receives an external voltage, a second end of the first resistor is grounded through the second resistor, the second end of the first resistor is connected to the driving circuit and the external manual switch through the diode, and the second end of the first resistor is connected to the main control circuit, where a resistance value of the first resistor is greater than a resistance value of the second resistor. Specifically, when an external manual switch is pressed, the trigger action signal acquired by the signal detection circuit is a low-level signal; when the external manual switch is not pressed, the trigger action signal acquired by the signal detection circuit is a high level signal. More specifically, the anode of the diode is connected with the second end of the first resistor, the cathode of the diode is connected with the external manual switch, and the voltage of the anode of the diode can be isolated from the voltage of the cathode of the diode due to the reverse cut-off action of the diode.
When the trigger action signal is consistent with the preset trigger action signal, the main control circuit 200 outputs a driving signal, for example, the trigger action signal of the preset electronic equipment opening mode is a rising edge signal generated by the ignition action of the automobile, and when the trigger action signal is detected to be the rising edge signal of the ignition action of the automobile, the driving signal with high level is output because the trigger action signal is consistent with the preset trigger action signal.
The driving circuit 300 is configured to output a state switching signal according to the trigger action signal and the driving signal, where the state switching signal is configured to switch the electronic device to be in an on state or an off state. Specifically, the driving circuit 300 may include a first inverter and a second inverter, the first inverter is connected to the signal detecting circuit and the main control circuit, the second inverter is connected to the external manual switch, the first inverter is connected to the second inverter, and the second inverter is connected to the external power source, wherein the first inverter may be a first triode, and the second inverter may be a second triode. More specifically, when the automatic trigger action signal is a high level signal, that is, when the ignition of the automobile generates a rising edge signal, the state switching signal is a high level signal, the external power supply is turned on, and when the starting trigger action signal is consistent with a preset starting trigger action signal, the main control circuit sends out a high level driving signal to keep the external power supply on, so that the electronic equipment is in a starting state; when the automatic triggering action signal is a low-level signal, namely, a falling edge signal is generated when an automobile is flameout, the state switching signal is a low-level signal, the external power supply is turned off, and when the closing triggering action signal is consistent with a preset closing triggering action signal, the main control circuit sends a low-level driving signal for keeping the external power supply to be turned off, so that the electronic equipment is in a closing state; when the manual switch is pressed down, the state switching signal is a high-level signal, the external power supply is connected, and when the starting trigger action signal is consistent with a preset starting trigger action signal, the main control circuit sends out a high-level driving signal so as to keep the external power supply connected; when the manual switch is not pressed, the state switching signal is a low level signal, the external power supply is turned off, and when the closing trigger action signal is consistent with a preset closing trigger action signal, the main control circuit sends a low level driving signal for keeping the external power supply to be turned off.
The control device of the electronic equipment comprises a signal detection circuit 100 for acquiring a trigger action signal, a main control circuit 200 for outputting a driving signal when the trigger action signal is consistent with a preset trigger action signal, and a driving circuit 300 for outputting a state switching signal according to the trigger action signal and the driving signal; the signal detection circuit 100 is respectively connected with the main control circuit 200 and the driving circuit 300, the main control circuit 200 is connected with the driving circuit 300, the driving circuit 300 is connected with an external power supply, the opening mode and the closing mode of the electronic equipment can be customized by a user through the control device of the electronic equipment, and when the detected trigger action signal is consistent with the preset trigger action signal, the electronic equipment can correspondingly switch on or switch off the external power supply, so that the independent selection of the opening mode and the closing mode of the electronic equipment can be realized, and different requirements of the user can be met.
In one embodiment, the signal detection circuit in the control device of the electronic apparatus further includes a filter capacitor, and the filter capacitor is connected in parallel with the second resistor, so that the output dc voltage is smoother.
In one embodiment, as shown in fig. 2, the control device of the electronic apparatus further includes a signal conversion circuit 400, where the signal detection circuit 100 is connected to the driving circuit 300 through the signal conversion circuit 400, and the signal conversion circuit 400 is used for processing an auto-triggering action signal and converting a voltage step edge signal generated by an ignition or a flameout action of the automobile into a pulse control signal. The signal conversion circuit 400 may specifically include a charging circuit, a capacitor, and a discharging circuit, where the signal detection circuit is connected to the charging circuit, the charging circuit is connected to a first end of the capacitor, the first end of the capacitor is connected to the discharging circuit, the discharging circuit is connected to the driving circuit, and a second end of the capacitor is grounded. Specifically, when the trigger action signal is a voltage rising edge signal generated by the ignition action of the automobile, the voltage rising edge signal generated by the ignition action of the automobile can be converted into a processable trigger action signal through the charge-discharge characteristic of the capacitor, and the signal can control the connection of an external power supply; when the trigger action signal is a voltage falling edge signal generated by the flameout action of the automobile, the voltage falling edge signal generated by the flameout action of the automobile can be converted into a processed trigger action signal through the charge and discharge characteristics of the capacitor, and the signal can control the turn-off of an external power supply.
In one embodiment, a charging circuit in a control device of an electronic apparatus includes a charging capacitor, a charging diode, and a charging resistor, the signal detection circuit is connected to the charging capacitor, the charging capacitor is connected to a first end of the capacitor through the charging diode, the charging capacitor is connected to the charging resistor through the charging diode and then grounded, and a charging loop is provided to the capacitor through the charging circuit. In another embodiment, the discharging circuit in the control device of the electronic apparatus includes a first discharging resistor and a second discharging resistor, the first end of the capacitor is connected to the driving circuit through the first discharging resistor, the first end of the capacitor is grounded after being connected to the second discharging resistor through the first discharging resistor, and a discharging loop is provided for the capacitor through the discharging circuit.
In one embodiment, the signal conversion circuit in the control device of the electronic equipment further comprises a first switching tube and a second switching tube, the first switching tube comprises a control end, a first end and a second end, the second switching tube comprises a control end, a first end and a second end, the discharging circuit is connected with the control end of the first switching tube, the first end of the first switching tube is connected with the control end of the second switching tube, the second end of the first switching tube is grounded, the first end of the second switching tube receives external voltage, the second end of the second switching tube is connected with the driving circuit, and the first switching tube and the second switching tube both play a signal inversion role. In another embodiment, the signal conversion circuit in the control device of the electronic apparatus further includes a voltage stabilizing circuit, the signal detection circuit is connected to the voltage stabilizing circuit, and the voltage stabilizing circuit is connected to the charging circuit to stabilize the charging voltage.
In a specific embodiment, as shown in fig. 3, the circuit diagram of the signal conversion circuit includes a voltage stabilizing circuit, a charging circuit, a capacitor C2, a discharging circuit, a first switching tube Q11 and a second switching tube Q58, the voltage stabilizing circuit includes a resistor R1 and a voltage stabilizing diode D1, the charging circuit includes a charging capacitor C1, a charging resistor R2 and a charging diode D2, the discharging circuit includes a first discharging resistor R3 and a second discharging resistor R5, the resistor R1 receives an automatic trigger action signal ign_sense, and the second switching tube Q58 outputs a processed automatic trigger action signal ign_power_on through a resistor R8.
In one embodiment, the circuit diagram of the driving circuit is shown in fig. 4, and includes a diode D6, a diode D7, a first inverter Q3, and a second inverter Q2, where the first inverter Q3 receives the driving signal power_hold and the processed auto-trigger signal ign_power_on through the diode D6, and the second inverter is connected to the external manual switch ON/off_key. The signal detection circuit for acquiring the manual trigger action signal comprises a first resistor R3 and a second resistor R1, wherein the first end of the first resistor R3 is connected with an external manual switch power supply 3V3, the second end of the first resistor R3 is grounded through the second resistor R1, the second end of the first resistor R3 is connected with an external manual switch ON/OFF_KEY through a diode D4, and the second end of the first resistor R3 outputs a manual trigger action signal PWR_KEY_DET.
In one embodiment, the electronic device opening process includes: acquiring an opening trigger action signal of the electronic equipment, wherein the opening trigger action signal is used for triggering and switching on an external power supply of the electronic equipment; outputting a driving signal when the opening trigger action signal is consistent with a preset opening trigger action signal; when the opening trigger action signal is inconsistent with the preset opening trigger action signal, returning to acquire the opening trigger action signal of the electronic equipment; and outputting a state switching signal according to the opening trigger action signal and the driving signal, wherein the state switching signal is used for enabling the electronic equipment to be in an opening state. In another embodiment, the shutdown procedure of the electronic device includes: acquiring a closing trigger action signal of the electronic equipment, wherein the closing trigger action signal is used for triggering the external power supply of the electronic equipment to be turned off; outputting a driving signal when the closing trigger action signal is consistent with a preset closing trigger action signal; when the closing trigger action signal is inconsistent with the preset closing trigger action signal, returning to acquire the closing trigger action signal of the electronic equipment; and outputting a state switching signal according to the closing trigger action signal and the driving signal, wherein the state switching signal is used for enabling the electronic equipment to be in a closing state.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (6)
1. A control device for an electronic apparatus, comprising:
the electronic equipment comprises a signal detection circuit for acquiring a trigger action signal, a main control circuit for outputting a driving signal when the trigger action signal is consistent with a preset trigger action signal, and a driving circuit for outputting a state switching signal according to the trigger action signal and the driving signal, wherein the state switching signal is used for switching the electronic equipment to be in an on state or an off state;
the signal detection circuit is respectively connected with the main control circuit and the driving circuit, the main control circuit is connected with the driving circuit, and the driving circuit is connected with an external power supply;
the control device of the electronic equipment further comprises a signal conversion circuit, and the signal detection circuit is connected with the driving circuit through the signal conversion circuit;
the signal conversion circuit comprises a charging circuit, a capacitor and a discharging circuit, the signal detection circuit is connected with the charging circuit, the charging circuit is connected with a first end of the capacitor, the first end of the capacitor is connected with the discharging circuit, the discharging circuit is connected with the driving circuit, and a second end of the capacitor is grounded;
the signal detection circuit comprises a first resistor, a second resistor and a diode, wherein the first end of the first resistor receives external voltage, the second end of the first resistor is grounded through the second resistor, the second end of the first resistor is connected with the driving circuit and an external manual switch through the diode, and the second end of the first resistor is connected with the main control circuit;
the signal detection circuit further comprises a filter capacitor, and the filter capacitor is connected with the second resistor in parallel.
2. The apparatus according to claim 1, wherein the charging circuit includes a charging capacitor, a charging diode, and a charging resistor, the signal detecting circuit is connected to the charging capacitor, the charging capacitor is connected to the first end of the capacitor through the charging diode, and the charging capacitor is grounded after being connected to the charging resistor through the charging diode.
3. The control device of an electronic apparatus according to claim 1, wherein the discharge circuit includes a first discharge resistor and a second discharge resistor, a first end of the capacitor is connected to the drive circuit through the first discharge resistor, and the capacitor is grounded after being connected to the second discharge resistor through the first discharge resistor.
4. The control device of an electronic apparatus according to claim 1, wherein the signal conversion circuit further comprises a first switching tube and a second switching tube, the first switching tube comprises a control end, a first end, and a second end, the second switching tube comprises a control end, a first end, and a second end, the discharge circuit is connected to the control end of the first switching tube, the first end of the first switching tube is connected to the control end of the second switching tube, the second end of the first switching tube is grounded, the first end of the second switching tube receives an external voltage, and the second end of the second switching tube is connected to the driving circuit.
5. The control device according to claim 1, wherein the driving circuit includes a first inverter and a second inverter, the first inverter is connected to the signal detecting circuit and the main control circuit, the second inverter is connected to an external manual switch, the first inverter is connected to the second inverter, and the second inverter is connected to an external power source.
6. The control device of claim 5, wherein the first inverter comprises a first transistor and the second inverter comprises a second transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711368807.0A CN107885108B (en) | 2017-12-18 | 2017-12-18 | Control device for electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711368807.0A CN107885108B (en) | 2017-12-18 | 2017-12-18 | Control device for electronic equipment |
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| CN107885108A CN107885108A (en) | 2018-04-06 |
| CN107885108B true CN107885108B (en) | 2024-03-19 |
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| CN201711368807.0A Active CN107885108B (en) | 2017-12-18 | 2017-12-18 | Control device for electronic equipment |
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