CN215400901U - Dustbin door opening controller with current detection function - Google Patents
Dustbin door opening controller with current detection function Download PDFInfo
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- CN215400901U CN215400901U CN202121825638.0U CN202121825638U CN215400901U CN 215400901 U CN215400901 U CN 215400901U CN 202121825638 U CN202121825638 U CN 202121825638U CN 215400901 U CN215400901 U CN 215400901U
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- current detection
- chip microcomputer
- single chip
- driving circuit
- door opening
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Abstract
The utility model discloses a garbage can door opening controller with a current detection function, which comprises a single chip microcomputer, a driving circuit and a current detection circuit, wherein the single chip microcomputer is electrically connected with the driving circuit, the driving circuit is electrically connected with the current detection circuit, the single chip microcomputer is provided with a communication interface and a power failure non-loss memory, the driving circuit controls a motor externally connected to the single chip microcomputer to rotate forward and backward, the current detection circuit detects the current of the motor externally connected to the single chip microcomputer, the single chip microcomputer is connected with a computer or a mobile phone through the communication interface to set door opening and closing time and a current threshold value, and the set time and the current threshold value are stored in the power failure non-loss memory after the setting is finished. The utility model has the advantages that: the problem of motor damage or controller damage caused by motor stalling in the door opening or closing process is effectively solved, the door is allowed to be opened again when the door is kept and closed, and the problem that the motor or the controller is damaged due to repeated opening of the door caused by the fact that an input signal is frequently changed from invalid to effective can be avoided.
Description
Technical Field
The utility model relates to the technical field of a dustbin door opening controller, in particular to a dustbin door opening controller with a current detection function.
Background
The intelligent classification who retrieves to waste classification retrieves dustbin has begun to use at present, and intelligent classification retrieves dustbin's structure as follows: the garbage throwing door is arranged on the shell, the door opener for controlling the garbage throwing door to be automatically opened is arranged in the shell, and the door opener is controlled by the controller in a card swiping or signal sensing mode. The existing dustbin door opening controller usually controls the motor to rotate forwards and backwards through a relay to open and close a dustbin door, generally has no current detection function, and easily damages the motor or the controller when the motor is locked.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provides a garbage can door opening controller with a current detection function.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows: a garbage can door opening controller with a current detection function comprises a single chip microcomputer, a driving circuit and a current detection circuit, wherein the single chip microcomputer is electrically connected with the driving circuit, the driving circuit is electrically connected with the current detection circuit, the single chip microcomputer is provided with a communication interface, a power failure non-loss memory is arranged, the driving circuit controls a forward rotation and a reverse rotation of an external motor, the current detection circuit detects the current of the external motor, the single chip microcomputer is connected with a computer or a mobile phone through the communication interface to set door opening and closing time and a current threshold value, and the set door opening and closing time and the current threshold value are stored in the power failure non-loss memory after the setting is finished; in the driving circuit, Q1 and Q3 are P-channel mosfet tubes, Q2 and Q4 are N-channel mosfet tubes, Q5 and Q6 are NPN triodes, D8 and D11 are transient suppression diodes, and R22 is a sampling resistor; the output signals of the single chip microcomputer are connected with M1LP, M1LN, M1RP and M1RN so as to control the forward rotation, the reverse rotation, the stop and the braking of an external motor; d8 and D11 of the driving circuit are used for absorbing transient spike voltage generated by an externally connected motor; u13 is operational amplifier among the current detection circuit, and R54, R59 one end connect the sampling resistor other end and connect the noninverting input end and the reverse input end of operational amplifier respectively, and U13 output connects the singlechip after resistance R55.
Compared with the prior art, the utility model has the advantages that: through setting up the current detection circuit, effectively solved because of opening the door or the motor damage or the controller damage that the door process motor locked rotor leads to, allowed to keep and open the door again when closing the door, can avoid input signal frequently become effectively leading to motor or controller damage by opening the door repeatedly that arouses by invalid.
Drawings
Fig. 1 is a schematic block diagram of a door opening controller of a trash can having a current detection function according to the present invention.
Fig. 2 is a schematic diagram of a driving circuit of a dustbin door opening controller with a current detection function according to the utility model.
Fig. 3 is a schematic diagram of a current detection circuit of a door opening controller of a garbage can with a current detection function according to the present invention.
As shown in the figure: 1. singlechip, 2, drive circuit, 3, current detection circuit, 4, communication interface.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
With reference to fig. 1, 2 and 3, a garbage bin door opening controller with a current detection function comprises a single chip microcomputer 1, a driving circuit 2 and a current detection circuit 3, wherein the single chip microcomputer 1 is electrically connected with the driving circuit 2, the driving circuit 2 is electrically connected with the current detection circuit 3, the single chip microcomputer 1 is provided with a communication interface 4, and a power-down non-loss memory, the driving circuit 2 controls an external motor to rotate forward and backward, the current detection circuit 3 detects the current of the external motor, the single chip microcomputer 1 is connected with a computer or a mobile phone through the communication interface 4 to set door opening and closing time and a current threshold, and the set time and the current threshold are stored in the power-down non-loss memory after the setting is completed; in the driving circuit 2, Q1 and Q3 are P-channel mosfet tubes, Q2 and Q4 are N-channel mosfet tubes, Q5 and Q6 are NPN triodes, D8 and D11 are transient suppression diodes, and R22 is a sampling resistor; the output signals of the singlechip 1 are connected with M1LP, M1LN, M1RP and M1RN so as to control the forward rotation, reverse rotation, stop and brake of an external motor; d8 and D11 of the drive circuit 2 are used for absorbing transient spike voltage generated by an externally connected motor; u13 is operational amplifier in the current detection circuit 3, and R54, R59 one end connect sampling resistor other end and connect operational amplifier's non inverting input end and reverse input end respectively, and U13 output connects singlechip 1 after resistance R55.
When the utility model is implemented in detail, the motor current detection circuit 3 and the drive circuit 2 are used for protection control, so that the motor damage or the controller damage caused by motor stalling in the door opening or closing process is effectively solved, the door is allowed to be opened again when the door is kept or closed, and the damage of the motor or the controller caused by repeated door opening caused by the fact that the input signal is frequently changed from invalid to effective can be avoided. The slow start is added in the door opening and closing process, so that the door opening and closing action is softer, the starting current is reduced, and the service lives of the push rod and the controller are prolonged.
The working principle of the utility model is as follows: when the door opening signal is changed from invalid to valid, the driving circuit 2 controls the rotation of an external motor to open the door; in the door opening process, the current of the motor is detected through the current detection circuit 3, if the current continuously exceeds the current threshold Imax for a certain time or the door opening time exceeds T1 and the input signal is invalid, the motor is braked, so that the dustbin door is kept in an open state for T2 time; and after the holding time of the door opening state exceeds T2 and the input signal is kept invalid, controlling the motor to reversely rotate to close the door, detecting the current of the motor in the door closing process, and if the current continuously exceeds the current threshold Imax for a certain number of times or the door opening time exceeds T3, closing the output.
Further, when the door is opened from other states, the motor is controlled to be slowly started through pulse width modulation; when the door is closed from other states, the motor is controlled to be started slowly through pulse width modulation.
Further, in the door opening process, the timing is reset if the door opening signal is effective; in the process of keeping the door opening state, resetting the timing when the door opening signal is effective; in the process of keeping the door opening state, the door opening signal is changed from invalid to valid, and then the door is opened again; and in the door closing process, the door is opened again when the door opening signal is effective.
Further, when the state is changed from the door opening state to the door closing state, the counter is increased by 1, when the counting exceeds 3 times, even if the door opening signal is changed from the invalidity state to the validity state, the door is not opened again, and the counter is cleared when the state of the door is changed from the door closing state to the door closing state.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (1)
1. The utility model provides a dustbin door opening controller with current detection function which characterized in that: the intelligent door control system comprises a single chip microcomputer, a driving circuit and a current detection circuit, wherein the single chip microcomputer is electrically connected with the driving circuit, the driving circuit is electrically connected with the current detection circuit, the single chip microcomputer is provided with a communication interface, and a power-failure non-loss memory, the driving circuit controls the forward and reverse rotation of an external motor, the current detection circuit detects the current of the external motor, the single chip microcomputer is connected with a computer or a mobile phone through the communication interface to set the door opening and closing time and the current threshold value, and the set door opening and closing time and the current threshold value are stored in the power-failure non-loss memory after the setting is finished; in the driving circuit, Q1 and Q3 are P-channel mosfet tubes, Q2 and Q4 are N-channel mosfet tubes, Q5 and Q6 are NPN triodes, D8 and D11 are transient suppression diodes, and R22 is a sampling resistor; the output signals of the single chip microcomputer are connected with M1LP, M1LN, M1RP and M1RN so as to control the forward rotation, the reverse rotation, the stop and the braking of an external motor; d8 and D11 of the driving circuit are used for absorbing transient spike voltage generated by an externally connected motor; u13 is operational amplifier among the current detection circuit, and R54, R59 one end connect the sampling resistor other end and connect the noninverting input end and the reverse input end of operational amplifier respectively, and U13 output connects the singlechip after resistance R55.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121825638.0U CN215400901U (en) | 2021-08-06 | 2021-08-06 | Dustbin door opening controller with current detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121825638.0U CN215400901U (en) | 2021-08-06 | 2021-08-06 | Dustbin door opening controller with current detection function |
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| Publication Number | Publication Date |
|---|---|
| CN215400901U true CN215400901U (en) | 2022-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121825638.0U Active CN215400901U (en) | 2021-08-06 | 2021-08-06 | Dustbin door opening controller with current detection function |
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| Country | Link |
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| CN (1) | CN215400901U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114516503A (en) * | 2022-03-01 | 2022-05-20 | 厦门芯阳科技股份有限公司 | Intelligent garbage can cover opening and closing control method and device and intelligent garbage can |
| CN114852560A (en) * | 2022-02-24 | 2022-08-05 | 杭州睿笛生物科技有限公司 | Automatic sealing garbage can and control circuit |
-
2021
- 2021-08-06 CN CN202121825638.0U patent/CN215400901U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114852560A (en) * | 2022-02-24 | 2022-08-05 | 杭州睿笛生物科技有限公司 | Automatic sealing garbage can and control circuit |
| CN114516503A (en) * | 2022-03-01 | 2022-05-20 | 厦门芯阳科技股份有限公司 | Intelligent garbage can cover opening and closing control method and device and intelligent garbage can |
| CN114516503B (en) * | 2022-03-01 | 2023-08-04 | 厦门芯阳科技股份有限公司 | Intelligent dustbin cover opening and closing control method and device and intelligent dustbin |
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