CN215581820U - Lighting device of access control system - Google Patents
Lighting device of access control system Download PDFInfo
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- CN215581820U CN215581820U CN202121461867.9U CN202121461867U CN215581820U CN 215581820 U CN215581820 U CN 215581820U CN 202121461867 U CN202121461867 U CN 202121461867U CN 215581820 U CN215581820 U CN 215581820U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The application relates to a lighting device of an access control system, which comprises a first lighting lamp group, a first lighting lamp group and a second lighting lamp group, wherein the first lighting lamp group is arranged outside a passing door and is used for lighting and indicating the area where the passing door is located; the second lighting lamp group is arranged outside the passing door and used for lighting and supplementing light to the area where the passing door is located; the light intensity module is arranged outside the passing door and used for detecting the illumination intensity outside the passing door in real time and outputting a light intensity control signal; the infrared module is arranged outside the passing door and used for detecting the thermal radiation intensity outside the passing door in real time and outputting an infrared control signal; the second lighting lamp group is respectively communicated with the light intensity module and the infrared module, and the second lighting lamp group is started based on the light intensity control signal and the infrared control signal. This application has the effect of being convenient for save the electric energy and being convenient for people to get into access control system's current door.
Description
Technical Field
The application relates to the technical field of entrance guard equipment, in particular to an illuminating device of an entrance guard system.
Background
The access control system is a system for controlling an access channel and is developed on the basis of a traditional door lock. The general access control system comprises a passing door, an access control host, an access control power supply, an electric master lock, an exit button, an identity identification module and other components, and has the functions of controlling an exit switch and the like. In an access control system, a lighting device is usually installed outside a passing door so as to illuminate at night, so that people can find the passing door and identify the passing door, and then enter an entrance channel.
A lighting device of an access control system in the related art includes a lighting lamp set that is continuously illuminated after being turned on at night.
With respect to the related art in the above, the inventors found that: under the condition of larger brightness or larger power, when no person enters the inlet channel, the lighting lamp group is easy to cause electric energy waste; the lighting lamp group is inconvenient for people to identify and authenticate under the condition of low brightness or low power.
SUMMERY OF THE UTILITY MODEL
In order to facilitate the current door of saving the electric energy and being convenient for people to get into access control system, this application provides an access control system's lighting device.
The application provides an access control system's lighting device adopts following technical scheme:
a lighting device of an access control system, comprising:
the first lighting lamp group is arranged outside the passing door and used for lighting and indicating the area where the passing door is located;
the second lighting lamp group is arranged outside the passing door and used for lighting and supplementing light to the area where the passing door is located;
the light intensity module is arranged outside the passing door and used for detecting the illumination intensity outside the passing door in real time and outputting a light intensity control signal; and the number of the first and second groups,
the infrared module is arranged outside the passing door and used for detecting the thermal radiation intensity outside the passing door in real time and outputting an infrared control signal;
the second lighting lamp group is respectively communicated with the light intensity module and the infrared module, and the second lighting lamp group is started based on the light intensity control signal and the infrared control signal.
By adopting the technical scheme, the arrangement of the first lighting lamp group is beneficial to lighting indication under the condition of low illumination intensity; when illumination intensity is lower and someone gets into infrared module's detection range, infrared module and illumination module combined action control second lighting lamp group open, and the light filling is thrown light on for current door department to the second lighting lamp group, and the people of being convenient for carry out identification, are convenient for save the electric energy and are convenient for people to get into access control system's current door.
Optionally, the light intensity module includes:
the light intensity detection submodule is used for detecting the illumination intensity outside the passing gate in real time and outputting a light intensity detection signal;
the light intensity comparison sub-module is preset with a light intensity reference value, is connected with the light intensity detection sub-module, receives the light intensity detection signal, converts the light intensity detection signal into a corresponding light intensity detection value in real time, compares the light intensity detection value with the light intensity reference value and outputs a light intensity comparison signal; and the number of the first and second groups,
and the light intensity control submodule is connected with the light intensity comparison submodule, receives the light intensity comparison signal and outputs a light intensity control signal for controlling the second lighting lamp group to be started based on the light intensity comparison signal.
By adopting the technical scheme, the light intensity detection sub-module detects the illumination intensity outside the passing door in real time and sends the detected illumination intensity in the form of the light intensity detection signal, the light intensity comparison sub-module receives the light intensity detection signal and then converts the light intensity detection signal into a corresponding light intensity detection value in real time, compares the light intensity detection value with a light intensity reference value and outputs the illumination comparison signal, and the light intensity control sub-module receives the illumination comparison signal and then controls the second lighting lamp set to be turned on or turned off according to the illumination comparison signal.
Optionally, the infrared module includes:
the infrared detection submodule is used for detecting the thermal radiation intensity outside the passing gate in real time and outputting a thermal radiation detection signal;
the infrared comparison sub-module is preset with a thermal radiation reference value, is connected with the infrared detection sub-module, receives the thermal radiation detection signal, converts the thermal radiation detection signal into a corresponding thermal radiation detection value, compares the thermal radiation detection value with the thermal radiation reference value and outputs a thermal radiation comparison signal; and the number of the first and second groups,
and the infrared control sub-module is connected with the infrared comparison sub-module, receives the thermal radiation comparison signal and outputs an infrared control signal for controlling the second lighting lamp group to be started based on the thermal radiation comparison signal.
Through adopting above-mentioned technical scheme, infrared detection submodule real-time detection passes outdoor thermal radiation intensity to send the thermal radiation intensity that detects with thermal radiation detected signal's form, infrared comparison submodule receives behind the thermal radiation detected signal and converts thermal radiation detected signal into corresponding thermal radiation detected value in real time and compares thermal radiation detected value and thermal radiation benchmark value and output thermal radiation comparison signal, infrared control submodule receives behind the thermal radiation comparison signal, according to opening or closing of thermal radiation comparison signal control second illumination banks.
Optionally, the lighting device of the access control system further includes:
and the delay module is connected with the infrared control submodule, receives the infrared control signal and outputs a delay signal for controlling the second lighting lamp group to be turned off in a delayed mode.
By adopting the technical scheme, the time delay module is used for controlling the second lighting lamp group to be turned off in a time delay manner, so that people can keep the second lighting lamp group turned on for a period of time and turn off the second lighting lamp group when the people are not in the detection range of the infrared detection module.
Optionally, the light intensity comparison sub-module includes: a first resistor R1, a second resistor R2, and a first comparator IC 1; wherein the content of the first and second substances,
the first resistor R1 has one end connected to the power supply VCC and the other end connected to the second resistor R2;
the other end of the second resistor R2 is grounded;
and the inverting input end of the first comparator IC1 is connected with the infrared detection submodule, and the non-inverting input end of the first comparator IC1 is connected with the connecting node of the first resistor R1 and the second resistor R2.
By adopting the above technical scheme, the first resistor R1 and the second resistor R2 are used for setting a light intensity reference value, the first comparator IC1 is used for converting a light intensity detection signal into a corresponding light intensity detection value in real time, and comparing the light intensity reference value with the light intensity detection value, when the light intensity reference value is greater than the light intensity detection value, the first comparator IC1 outputs a low level, and when the light intensity reference value is less than the illumination detection value, the first comparator IC1 outputs a high level.
Optionally, the light intensity control sub-module includes: a first triode Q1 and a first relay KM 1; wherein the content of the first and second substances,
the base of the first triode Q1 is connected to the output end of the first comparator IC1, and the emitter of the first triode Q1 is grounded;
the first relay KM1 comprises a first coil and a normally open contact KM 1-1; one end of the first coil is connected with a collector of the first triode Q1, and the other end of the first coil is connected with a power supply VCC; the normally open contact KM1-1 is connected to the power supply loop of the second lighting lamp group.
By adopting the technical scheme, when the first comparator IC1 outputs a high level, the first triode Q1 is conducted, the first coil of the first relay KM1 is electrified, and the normally open contact KM1-1 is closed.
Optionally, the first coil is connected to a protection circuit for protecting the first transistor Q1.
By adopting the technical scheme, the protection circuit is used for protecting the first triode Q1.
Optionally, the protection circuit includes a first diode D1, a cathode of the first diode D1 is connected between the first coil and the power source VCC, and an anode of the first diode D1 is connected between a collector of the first triode Q1 and the first coil.
By adopting the technical scheme, the first diode D1 is used for absorbing the induced electromotive force generated when the first coil is powered off, so that the first triode Q1 is protected.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the first lighting lamp group is arranged to help to perform lighting indication under the condition of low illumination intensity; when the illumination intensity is low and people enter the detection range of the infrared module, the infrared module and the illumination module act together to control the second lighting lamp group to be turned on, and the second lighting lamp group performs lighting and light supplementing for the passing door, so that the identity recognition of people is facilitated, the electric energy is saved, and the people can conveniently enter the passing door of the access control system;
2. the first diode D1 is used to absorb the induced electromotive force generated when the first coil is powered off, thereby protecting the first transistor Q1.
Drawings
Fig. 1 is a block diagram of an illumination device of an access control system according to an embodiment of the present application.
Fig. 2 is a power supply circuit for showing a first lighting lamp set and a second lighting lamp set according to one embodiment of the present application.
Fig. 3 is a schematic circuit diagram of a light intensity module according to an embodiment of the present disclosure.
Fig. 4 is a schematic circuit diagram of an infrared module according to an embodiment of the present application.
Fig. 5 is a schematic circuit diagram of a delay module according to an embodiment of the present application.
Description of reference numerals: 9. a first lighting lamp group; 10. a light intensity module; 11. an infrared module; 12. a second group of lighting lamps; 13. a light intensity detection submodule; 14. a light intensity comparison submodule; 15. a light intensity control submodule; 16. an infrared detection submodule; 17. an infrared comparison submodule; 18. an infrared control submodule; 19. and a time delay module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to fig. 1-5 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The embodiment of the application discloses lighting device of access control system.
Referring to fig. 1 and 2, as an embodiment of an illumination apparatus of an access control system, the illumination apparatus of an access control system includes a first illumination lamp group 9, a second illumination lamp group 12, a light intensity module 10, and an infrared module 11; the first lighting lamp group 9 is installed outside a traffic entrance of the access control system, the brightness of the first lighting lamp group 9 is small, and the first lighting lamp group 9 is used for conducting illumination guidance in a dark state; the second lighting lamp group 12 is installed outside the access opening of the access control system, the brightness of the second lighting lamp group 12 is larger than that of the first lighting lamp group 9, and the second lighting lamp group 12 is used for lighting and supplementing light to the area where the access door is located, so that identity recognition can be conveniently completed, and as a specific implementation mode of identity recognition, the second lighting lamp group can be one or more of identification modes such as access card recognition, face recognition and fingerprint recognition. When the illumination intensity is low and someone needs to enter the entrance guard channel, the light intensity module 10 and the infrared module 11 act together to control the second lighting lamp set 12 to be turned on.
Referring to fig. 1 and 3, the light intensity module 10 includes a light intensity detection sub-module 13, a light intensity comparison sub-module 14, and a light intensity control sub-module 15. As an embodiment of the light intensity detection sub-module 13, the light intensity detection sub-module 13 is an illumination intensity sensor and the illumination intensity sensor is a positive coefficient sensor, and the illumination intensity sensor is used for detecting the illumination intensity outside the passing door in real time and outputting a light intensity detection signal.
Referring to fig. 3, the light intensity comparison sub-module 14 includes a first resistor R1, a second resistor R2, and a first comparator IC 1; one end of the first resistor R1 is connected to the power VCC, and the other end is connected to one end of the second resistor R2; the other end of the second resistor R2 is grounded; an inverting input terminal of the first comparator IC1 is connected to the light intensity sensor, and a non-inverting input terminal of the first comparator IC1 is connected to one end of the second resistor R2. The first resistor R1 and the second resistor R1 are used to set a light intensity reference value equal to the voltage value across the second resistor R2. The first comparator IC1 receives the light intensity detection signal and converts the light intensity detection signal into a corresponding light intensity detection value in real time, and then compares the light intensity detection value with a light intensity reference value; when the light intensity detection value is larger than the light intensity reference value, the first comparator IC1 outputs a low level; when the light intensity detection value is smaller than the light intensity reference value, the first comparator IC1 outputs a high level.
Referring to fig. 3, the light intensity control sub-module 15 includes a first triode Q1 and a first relay KM 1; the first triode Q1 is an NPN type triode, the base electrode of the first triode Q1 is connected with the output end of the first comparator IC1, and the emitter electrode of the first triode Q1 is grounded; the first relay KM1 comprises a first coil, a normally open contact KM1-1 and a normally open contact KM 1-2; one end of the first coil is connected with a collector of a first triode Q1, and the other end of the first coil is connected with a power supply VCC; the normally open contact KM1-1 is connected in the power supply loop of the second lighting lamp group 12; the normally open contact KM1-2 is connected to the power supply loop of the first lighting lamp group 9. When the first comparator IC1 outputs a high level, the first triode Q1 is conducted, the first coil of the first relay KM1 is electrified, and the normally open contact KM1-1 and the normally open contact KM1-2 are both closed; when the first comparator IC1 outputs a low level, the first triode Q1 is cut off, the first coil of the first relay KM1 is not electrified, and the normally open contact KM1-1 and the normally open contact KM1-2 are kept open.
Referring to fig. 3, since the first coil generates an induced electromotive force when it is powered off, the induced electromotive force generates a high reverse voltage at two ends of the first coil, which easily causes the first transistor Q1 to be damaged. In order to protect the first triode Q1, a protection circuit for protecting the first triode Q1 is connected to the first coil, the protection circuit includes a first diode D1, a cathode of the first diode D1 is connected between the first coil and a power source VCC, and an anode of the first diode D1 is connected between a collector of the first triode Q1 and the first coil.
Referring to fig. 1 and 4, the infrared module 11 includes an infrared detection sub-module 16, an infrared comparison sub-module 17, and an infrared control sub-module 18. As an implementation manner of the infrared detection sub-module 16, the infrared detection sub-module 16 is an infrared sensor, and the infrared sensor used in the embodiment of the present application is a positive coefficient sensor, and the infrared sensor is configured to detect the intensity of heat radiation in a detection range outside the passing door in real time and output a heat radiation detection signal.
Referring to fig. 4, the infrared comparison sub-module 17 includes a third resistor R3, a fourth resistor R4, and a second comparator IC 2; one end of the third resistor R3 is connected to the power VCC, and the other end of the third resistor R3 is connected to one end of the fourth resistor R4; the other end of the fourth resistor R4 is grounded; a non-inverting input terminal of the second comparator IC2 is connected to the infrared sensor, and an inverting input terminal of the second comparator IC2 is connected to one end of the fourth resistor R4. The third resistor R3 and the second resistor R1 are used to set a heat radiation reference value having a value equal to the value of the voltage across the fourth resistor R4. The second comparator IC2 receives the thermal radiation detection signal, converts the thermal radiation detection signal into a corresponding thermal radiation detection value in real time, and compares the thermal radiation detection value with a thermal radiation reference value; when the heat radiation detection value is larger than the heat radiation reference value, the second comparator IC2 outputs a high level; when the heat radiation detection value is smaller than the heat radiation reference value, the second comparator IC2 outputs a low level.
Referring to fig. 4, the infrared control submodule 18 includes a second transistor Q2 and a second relay KM 2; the second triode Q2 is an NPN type triode, the base electrode of the second triode Q2 is connected with the output end of the second comparator IC2, the emitting electrode of the second triode Q2 is grounded, and the second relay KM2 comprises a second coil and a normally open contact KM 2-1; one end of the second coil is connected with the collector of the second triode Q2, and the other end of the second coil is connected to the power supply VCC. The second coil is connected with a second diode D2, the cathode of the second diode D2 is connected between the second coil and a power supply VCC, the anode of the second diode D2 is connected between the collector of the second triode Q2 and the second coil, when the second comparator IC2 outputs a high level, the second triode Q2 is conducted, and the second relay KM2 is powered.
Referring to fig. 2 and 5, in order to keep the second lighting lamp set 12 continuously illuminated for a period of time after the human body leaves the detection range of the infrared sensor, the lighting device of the access control system further includes a delay module 19. The delay module 19 includes a delay chip IC3, a seventh resistor R7, an eighth resistor R8, a first non-polar capacitor C1, a third relay KM3, a third transistor Q3, and a third diode D3. As an implementation manner of the delay chip IC3, the delay chip IC3 is an NE555 delay chip, the total reset terminal MR and the power supply terminal Vcc of the delay chip IC3 are connected to the power supply Vcc, and the ground terminal GND of the delay chip IC3 is grounded; the eighth resistor R8 is connected in series with the first non-polar capacitor C1, one end of the series circuit is connected to the power source VCC, and the other end of the series circuit is grounded; the tuning input TH and the discharge end DIC of the delay chip IC3 are connected between the eighth resistor R8 and the first non-polar capacitor C1; one end of the seventh resistor R7 is connected to the power supply VCC; one end of a normally open contact KM2-1 of the second relay KM2 is connected with the other end of a seventh resistor R7; the other end of the normally open contact KM2-1 is grounded; the trigger input terminal TR of the delay chip IC3 is connected between the seventh resistor R7 and the normally open contact KM 2-1. The third relay KM3 comprises a third coil and a normally open contact KM3-1, wherein one end of the third coil is connected with a power supply VCC; the third triode Q3 is an NPN type triode, the base electrode of the third triode Q3 is connected to the output end OUT of the time delay chip IC3, the emitting electrode of the third triode Q3 is grounded, and the collecting electrode of the third triode Q3 is connected to the third coil; a cathode of the third diode D3 is connected between the third coil and the power source VCC, and an anode of the third diode D3 is connected between a collector of the third transistor Q3 and the second coil.
When the normally open contact KM2-1 is closed, the trigger input end TR of the delay chip IC3 is changed from high level to low level, the output end OUT of the delay chip IC3 outputs high level state, the third triode Q3 is conducted at the moment, the third relay KM3 is electrified, and the normally open contact KM3-1 connected to the second lighting lamp group 12 is closed; at this time, the power supply VCC charges the first nonpolar capacitor C1 through the eighth resistor, when the positive voltage of the first nonpolar capacitor C1 is higher than two thirds VCC, the output end OUT of the time delay chip IC3 outputs low level, the third triode Q3 is cut off, the third relay KM3 is not powered, and the normally open contact KM3-1 is kept open.
The implementation principle of the lighting device of the access control system in the embodiment of the application is as follows: illumination intensity sensor real-time detection passes the illumination intensity outside the door and output light intensity detection signal, first comparator IC1 receives and converts light intensity detection signal into corresponding light intensity detected value in real time behind the light intensity detected signal, when the light intensity detected value is less than the light intensity benchmark value, first comparator IC1 output high level, first triode Q1 switches on, first relay KM 1's first coil is electrified, normally open contact KM1-1, normally open contact KM1-2 is all closed, first lighting lamp group 9 is opened. When someone needs to enter the passing door and enter the detection range of the infrared sensor, when the heat radiation detection value is larger than the heat radiation reference value, the second comparator IC2 outputs a high level, the second triode Q2 is conducted, the second relay KM2 is electrified, the normally open contact KM2-1 is closed, the normally open contact KM3-1 is closed, the second lighting lamp set 12 is opened, the region where the passing door is located is illuminated and supplemented with light, and identity recognition is facilitated. People leave infrared sensor's detection range afterwards, and second lighting lamp group 12 stops the illumination after keeping the illumination for a period of time, and this application is convenient for save the electric energy and is convenient for people to get into access control system's current door.
The foregoing is a preferred embodiment of the present application and is not intended to limit the scope of the application in any way, and any features disclosed in this specification (including the abstract and drawings) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
Claims (8)
1. An illumination device for an access control system, comprising:
the first lighting lamp group (9) is arranged outside the passing door and used for lighting and indicating the area where the passing door is located;
the second lighting lamp group (12) is arranged outside the passing door and used for lighting and supplementing light for the area where the passing door is located;
the light intensity module (10) is arranged outside the passing door and used for detecting the illumination intensity outside the passing door in real time and outputting a light intensity control signal; and the number of the first and second groups,
the infrared module (11) is arranged outside the passing door and used for detecting the thermal radiation intensity outside the passing door in real time and outputting an infrared control signal;
the second lighting lamp group (12) is respectively communicated with the light intensity module (10) and the infrared module (11), and the second lighting lamp group (12) is turned on based on the light intensity control signal and the infrared control signal.
2. Lighting device of an access control system according to claim 1, characterized in that said light intensity module (10) comprises:
the light intensity detection submodule (13) is used for detecting the illumination intensity outside the passing gate in real time and outputting a light intensity detection signal;
the light intensity comparison sub-module (14) is preset with a light intensity reference value, is connected with the light intensity detection sub-module (13), receives the light intensity detection signal, converts the light intensity detection signal into a corresponding light intensity detection value in real time, compares the light intensity detection value with the light intensity reference value and outputs a light intensity comparison signal; and the number of the first and second groups,
and the light intensity control sub-module (15) is connected with the light intensity comparison sub-module (14), receives the light intensity comparison signal and outputs a light intensity control signal for controlling the second lighting lamp group (12) to be turned on based on the light intensity comparison signal.
3. Lighting device of an access control system according to claim 1, characterized in that said infrared module (11) comprises:
the infrared detection submodule (16) is used for detecting the intensity of heat radiation outside the passing door in real time and outputting a heat radiation detection signal;
the infrared comparison sub-module (17) is preset with a thermal radiation reference value, is connected with the infrared detection sub-module (16), receives the thermal radiation detection signal, converts the thermal radiation detection signal into a corresponding thermal radiation detection value, compares the thermal radiation detection value with the thermal radiation reference value and outputs a thermal radiation comparison signal; and the number of the first and second groups,
and the infrared control sub-module (18) is connected with the infrared comparison sub-module (17), receives the heat radiation comparison signal and outputs an infrared control signal for controlling the second lighting lamp group (12) to be turned on based on the heat radiation comparison signal.
4. The lighting device of an access control system as claimed in claim 3, further comprising:
and the delay module (19) is connected with the infrared control submodule (18), receives the infrared control signal and outputs a delay signal for controlling the second lighting lamp group (12) to be turned off in a delay way.
5. The lighting device of an access control system according to claim 2, wherein the light intensity comparison sub-module (14) comprises: a first resistor R1, a second resistor R2, and a first comparator IC 1; wherein the content of the first and second substances,
the first resistor R1 has one end connected to the power supply VCC and the other end connected to one end of the second resistor R2;
the other end of the second resistor R2 is grounded;
and the inverting input end of the first comparator IC1 is connected with the infrared detection submodule (16), and the non-inverting input end of the first comparator IC1 is connected with the other end of the second resistor R2.
6. Lighting device of an access control system according to claim 5, characterized in that said light intensity control sub-module (15) comprises: a first triode Q1 and a first relay KM 1; wherein the content of the first and second substances,
the base of the first triode Q1 is connected to the output end of the first comparator IC1, and the emitter of the first triode Q1 is grounded;
the first relay KM1 comprises a first coil and a normally open contact KM 1-1; one end of the first coil is connected with a collector of the first triode Q1, and the other end of the first coil is connected with a power supply VCC; the normally open contact KM1-1 is connected to the power supply loop of the second lighting lamp group (12).
7. The lighting device of an access control system according to claim 6, wherein: the first coil is connected with a protection circuit for protecting a first triode Q1.
8. The lighting device of an access control system according to claim 7, wherein: the protection circuit includes a first diode D1, a cathode of the first diode D1 is connected between the first coil and a power source VCC, and an anode of the first diode D1 is connected between a collector of the first triode Q1 and the first coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121461867.9U CN215581820U (en) | 2021-06-29 | 2021-06-29 | Lighting device of access control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121461867.9U CN215581820U (en) | 2021-06-29 | 2021-06-29 | Lighting device of access control system |
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| Publication Number | Publication Date |
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| CN215581820U true CN215581820U (en) | 2022-01-18 |
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| CN202121461867.9U Expired - Fee Related CN215581820U (en) | 2021-06-29 | 2021-06-29 | Lighting device of access control system |
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Granted publication date: 20220118 |