Electronic anti-theft controller circuit and electronic anti-theft device
By integrating the main control chip and base station chip circuit, an electronic anti-theft controller circuit was designed, which solved the problems of complex circuits, low electromagnetic compatibility performance and high cost in the prior art, and achieved smaller volume, higher electromagnetic compatibility performance and lower cost.
Patent Information
- Application Number
- CN202010592447.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-06-24
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2040-06-24
AI Technical Summary
The existing anti-theft controllers of motor vehicles have problems such as complex circuits, low electromagnetic compatibility performance and high cost, resulting in large size, wasted materials, and inconvenient installation, especially in motorcycle application environments.
An electronic anti-theft controller circuit is designed, and the electronic anti-theft function is realized by integrating the main control chip and the base station chip circuit, including a microcontroller unit, a power management module, a local Internet network transceiver circuit, a high-side drive and a low-side drive.
This design reduces the volume of the electronic anti-theft controller, improves electromagnetic compatibility, reduces material waste and costs, and ensures product consistency.
Smart Images

Figure CN111660998B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of motor vehicle anti-theft, and in particular to an electronic anti-theft controller circuit and an electronic anti-theft device. Background Art
[0002] With the development of economy, people have put forward higher requirements on the anti-theft performance of motor vehicles, especially in the anti-theft application of motorcycles, which has higher anti-theft requirements, requiring not only lower cost and higher reliability, but also smaller size.
[0003] The existing anti-theft controller is mainly used in automobiles. The hardware is mainly composed of separate devices such as power management, main processor, base station chip, low-side driver (high-side driver) and controller area network (CAN) transceiver circuit, local interconnect network (LIN) transceiver circuit, etc. There are problems such as complex circuit, low electromagnetic compatibility performance and high cost, which leads to a large overall size of the controller, waste of materials, increased material cost, and inconvenient installation, especially in motorcycle application environment.
[0004] Therefore, there is an urgent need for an electronic anti-theft controller circuit and an electronic anti-theft device to solve the above problems. Summary of the invention
[0005] In view of the problems existing in the prior art, the embodiments of the present invention provide an electronic anti-theft controller circuit and an electronic anti-theft device.
[0006] In a first aspect, an embodiment of the present invention provides an electronic anti-theft controller circuit, comprising a main control chip and a base station chip circuit, wherein the main control chip and the base station chip circuit are connected to realize an electronic anti-theft function; the main control chip integrates a micro control unit, a power management module, a local area interconnection network transceiver circuit, a high-side driver and a low-side driver, wherein:
[0007] The microcontroller unit is used to process the collected signals; control the high-side and low-side drive outputs; control the serial peripheral interface or the input / output interface to communicate with the base station chip circuit; control the local area interconnection network transceiver to communicate with the power controller; process encryption and decryption algorithms and communication protocols;
[0008] The power management module is used to convert the power supply voltage into a preset working voltage and collect real-time power supply voltage information;
[0009] The local area interconnection network transceiver circuit is used to receive the authentication request information of the power controller and send the authentication result to the power controller;
[0010] The high-side driver is used to control the anti-theft indicator light and the key reminder buzzer respectively through two high-side drivers;
[0011] The low-side drive is used to control the relay through two low-side drives, wherein one low-side drive circuit controls the oil pump relay, and the other low-side drive circuit controls the starter relay or the main electric power supply relay;
[0012] The base station chip circuit communicates with the key transceiver via a high frequency or low frequency antenna;
[0013] The model of the main control chip is TLE98XX series.
[0014] Furthermore, the power management module includes a power input subcircuit, a power voltage acquisition subcircuit and a power output subcircuit, wherein:
[0015] The power input subcircuit includes a diode, a first capacitor and a first polarized capacitor, which are used to provide power for the main control chip and provide filtering and anti-reverse connection protection for the power supply; wherein the positive electrode of the diode is connected to the battery, and the negative electrode of the diode is connected to the power input pin of the main control chip; the first end of the first capacitor is connected to the power input pin of the main control chip, and the first end of the first polarized capacitor is connected to the power input pin of the main control chip; the first end of the first capacitor and the second end of the first polarized capacitor are grounded respectively;
[0016] The power acquisition subcircuit includes a second capacitor, a first resistor and a third capacitor, which are used to provide the main control chip with a current-limited and filtered power supply voltage; wherein the first end of the second capacitor is connected to the first end of the first resistor; the second end of the first resistor is connected to the first end of the third capacitor and the main control chip; the second end of the second capacitor and the second end of the third capacitor are grounded respectively;
[0017] The power output subcircuit includes a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor and a ninth capacitor, which are used to filter the output power voltage; wherein the first ends of the fourth capacitor, the fifth capacitor, the sixth capacitor, the seventh capacitor, the eighth capacitor and the ninth capacitor are respectively connected to the main control chip, and the second ends of the fourth capacitor, the fifth capacitor, the sixth capacitor, the seventh capacitor, the eighth capacitor and the ninth capacitor are grounded.
[0018] Further, the base station chip circuit includes a base station chip, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a tenth capacitor, an eleventh capacitor, a twelfth capacitor, a thirteenth capacitor, a fourteenth capacitor, a second polarization capacitor and a first crystal oscillator;
[0019] The eleventh capacitor and the second polarized capacitor constitute a power subcircuit for providing power to the base station chip; the second resistor, the third resistor and the tenth capacitor constitute a communication subcircuit for communicating with the main control chip; the first crystal oscillator and the fourth resistor constitute an oscillator subcircuit for connecting a coil for the base station chip clock source and the antenna subcircuit to communicate with the key transceiver, and the antenna subcircuit is composed of the fifth resistor, the sixth resistor, the seventh resistor, the eighth resistor, the twelfth capacitor, the thirteenth capacitor and the fourteenth capacitor, wherein:
[0020] The first end of the second resistor is connected to the main control chip, and the second end of the second resistor is connected to the base station chip; the first end of the third resistor is connected to the main control chip, and the second end of the third resistor is connected to the first end of the tenth capacitor and the base station chip; the first end of the fourth resistor is connected to the first end of the first crystal oscillator and the second transistor pin of the base station chip, and the second end of the fourth resistor is connected to the second end of the first crystal oscillator and the first transistor pin of the base station chip; the first end of the fifth resistor is connected to the base station chip, and the second end of the fifth resistor is connected to the first end of the twelfth capacitor and the first antenna; the first end of the sixth resistor is connected to the base station chip, and the second end of the sixth resistor is connected to the first end of the fourteenth capacitor and the first end of the thirteenth capacitor; the first end of the seventh resistor is connected to the base station chip and the first end of the eighth resistor, the second end of the seventh resistor is connected to the second end of the twelfth capacitor and the second antenna, and the second end of the eighth resistor is connected to the base station chip; the first end of the eleventh capacitor is connected to an external power supply, the first end of the second polarized capacitor and the base station chip; the second ends of the tenth capacitor, the eleventh capacitor, the twelfth capacitor and the fourteenth capacitor are grounded, the second end of the second polarized capacitor is grounded, and the third end of the first crystal oscillator is grounded.
[0021] Furthermore, the anti-theft controller circuit also includes a key switch signal control circuit connected to the main control chip, and the key switch signal control circuit includes a ninth resistor, a tenth resistor, a fifteenth capacitor and a sixteenth capacitor, which are used to wake up the main control chip, wherein:
[0022] The first end of the ninth resistor is connected to the ignition switch, the first end of the fifteenth capacitor, the first end of the tenth resistor, the first end of the sixteenth capacitor and the main control chip; the second ends of the tenth resistor, the fifteenth capacitor and the sixteenth capacitor are grounded.
[0023] Furthermore, the anti-theft controller circuit further includes a clock circuit connected to the main control chip, the clock circuit includes a seventeenth capacitor, an eighteenth capacitor and a second crystal oscillator, and is used to provide an external vibration source for the main control chip, wherein:
[0024] The first end of the second crystal oscillator is connected to the first end of the seventeenth capacitor and the first clock circuit pin of the main control chip, and the second end of the second crystal oscillator is connected to the first end of the eighteenth capacitor and the second clock circuit pin of the main control chip; the second ends of the seventeenth capacitor and the eighteenth capacitor are grounded. In a second aspect, an embodiment of the present invention provides an electronic anti-theft device, including the electronic anti-theft controller circuit provided in the first aspect.
[0025] An electronic anti-theft controller circuit and an electronic anti-theft device provided by the embodiment of the present invention integrate a power supply, a main controller, a LIN transceiver, a high-side driver and a low-side driver on one chip, thereby reducing the volume of the electronic anti-theft controller. In addition, the high-integration chip solution improves the electromagnetic compatibility performance, ensures the consistency of the product, reduces material waste, and reduces the cost of the electronic anti-theft controller. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0027] Figure 1 A schematic diagram of the structure of an electronic anti-theft controller circuit provided by an embodiment of the present invention;
[0028] Figure 2 The electronic anti-theft controller circuit diagram based on TLE9845QX provided in the embodiment of the present invention. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0030] Figure 1 The schematic diagram of the structure of the electronic anti-theft controller circuit provided by the embodiment of the present invention is as follows: Figure 1As shown, an embodiment of the present invention provides an electronic anti-theft controller circuit, including a main control chip 101 and a base station chip circuit 102, wherein the main control chip 101 and the base station chip circuit 102 are connected to realize an electronic anti-theft function; the main control chip 101 integrates a micro control unit 1011, a power management module 1012, a local area interconnection network transceiver circuit 1013, a high-side driver 1014 and a low-side driver 1015, wherein:
[0031] The microcontroller unit 1011 is used to process the collected signals; control the high-side and low-side drive outputs; control the serial peripheral interface or the input / output interface to communicate with the base station chip circuit 102; control the local area interconnection network transceiver 1013 to communicate with the power controller; process the encryption and decryption algorithms and communication protocols;
[0032] The power management module 1012 is used to convert the power supply voltage into a preset working voltage and collect real-time power supply voltage information;
[0033] The local area interconnection network transceiver circuit 1013 is used to receive the authentication request information of the power controller and send the authentication result to the power controller;
[0034] The high-side driver 1014 is used to control the anti-theft indicator light and the key reminder buzzer respectively through two high-side drivers;
[0035] The low-side driver 1015 is used to control the relay through two low-side drivers, wherein one low-side driver circuit controls the oil pump relay, and the other low-side driver circuit controls the starter relay or the main electric power supply relay;
[0036] The base station chip circuit 102 communicates with the key transceiver via a high frequency or low frequency antenna;
[0037] The model of the main control chip 101 is TLE98XX series.
[0038] In the embodiment of the present invention, the main control chip 101 adopts a highly integrated chip, the model is TLE98XX series. Specifically, in the embodiment of the present invention, the model of the main control chip is TLE9845QX, which is a series product of Infineon, and its MCU operating frequency is up to 40MHz. The device integrates two high-side and two low-side drivers on a single chip, including 48KB flash memory, 4KB EEPROM, 768B 100TP memory, 4KB RAM and boot ROM, with high integration and high cost performance. As a processor, the chip can be used for system wake-up management, voltage monitoring, information processing, encryption and decryption algorithm calculation and communication protocol processing.
[0039] The electronic anti-theft controller circuit provided by the embodiment of the present invention integrates a power supply, a main controller, a LIN transceiver, a high-side driver and a low-side driver on one chip, thereby reducing the volume of the electronic anti-theft controller. In addition, the high-integration chip solution improves electromagnetic compatibility performance, ensures product consistency, reduces material waste, and reduces the cost of the electronic anti-theft controller.
[0040] Figure 2 The electronic anti-theft controller circuit diagram based on TLE9845QX provided in the embodiment of the present invention can be referred to Figure 2 As shown, the power supply, main processor, LIN transceiver, two high-side drivers and two low-side drivers are integrated on one chip, and combined with a low-frequency or high-frequency base station chip to realize keyed or keyless electronic anti-theft function.
[0041] Furthermore, the anti-theft controller circuit provided in the embodiment of the present invention also includes a base station chip circuit 102 connected to the main control chip 101, and the base station chip circuit 102 is used to wirelessly respond to the key chip. Specifically, the main control chip 101 communicates with the high-frequency or low-frequency base station chip through the input / output interface (IO) or the serial peripheral interface (SPI) to realize the communication and authentication function between the anti-theft controller and the key chip. This circuit scheme can be used for keyed and keyless anti-theft controllers.
[0042] Among them, the model of the base station chip is TMS3705A, which is an advanced base station integrated circuit with the characteristics of high integration and a small number of external components. It is mainly used in automobile engine anti-theft systems and can provide read and write access to identity document (ID) transponders. The embodiment of the present invention does not specifically limit the model of the base station chip.
[0043] Furthermore, the interface of the LIN transceiver circuit 1013 communicates with other controllers, and realizes the anti-theft function of the engine controller or the motor controller, as well as the state and information exchange function through the secondary encryption authentication. Specifically, the main control chip 101 receives the authentication request information of the engine controller through the LIN transceiver circuit 1013, and then compares the anti-theft controller and the authenticated key information through the encryption algorithm, and then sends the authentication result to the power controller through the LIN transceiver circuit 1013 to realize the electronic anti-theft function.
[0044] Furthermore, in an embodiment of the present invention, the microcontroller unit 1011 controls the serial high / low side drive through the IO or SPI interface to realize the vehicle controller (Body Control Module, BCM for short) with anti-theft function, especially in the vehicle controller of a motorcycle. Specifically, the high side drive circuit 1014 has two circuits, wherein the first high side drive circuit controls the indicator light of the anti-theft controller, and the second high side drive circuit realizes the prompt control of the buzzer when the key is not removed; the low side drive circuit 1015 also has two circuits, which can be used to control the oil pump relay, the starter relay or the main electric power supply relay according to the actual application scenario to realize the anti-theft function. It should be noted that the high side drive and the low side drive can also be used for other functional drives, and the embodiment of the present invention does not specifically limit this.
[0045] Furthermore, the power management module 1012 provides a 12V to 5V power management function to provide 5V power to other external chips. Figure 2 As shown, the power management module 1012 converts the 12V power supply into the internal 5V of VDDP and the external 5V of VDDEX. The internal 5V power supply and the external 5V power supply output are enabled by the ignition switch (IGN) key signal. When the main controller wakes up, it will collect the power supply voltage in real time through the VBAT_SENSE pin to monitor whether the power supply is normal.
[0046] Based on the above embodiments, reference can be made to Figure 2 As shown, the power management module includes a power input subcircuit, a power voltage acquisition subcircuit and a power output subcircuit, wherein:
[0047] The power input subcircuit includes a diode D1, a first capacitor C1 and a first polarized capacitor C 1 , used to provide power for the main control chip, and provide filtering and anti-reverse connection protection for the power supply; wherein the positive electrode of the diode D1 is connected to the battery BAT, and the negative electrode of the diode D1 is connected to the power input pin VS of the main control chip; the first end of the first capacitor C1 is connected to the power input pin VS of the main control chip, and the first polarized capacitor C 1 The first end (positive electrode) of the first capacitor C1 is connected to the power input pin VS of the main control chip; the first end (positive electrode) of the first capacitor C1 is connected to the first polarized capacitor C 1 The second ends of are respectively grounded;
[0048] The power acquisition subcircuit includes a second capacitor C2, a first resistor R1 and a third capacitor C3, which are used to provide the main control chip with a current-limited and filtered power supply voltage; wherein the first end of the second capacitor C2 is connected to the first end of the first resistor R1; the second end of the first resistor R1 is connected to the first end of the third capacitor C3 and the pin 48 of the main control chip; the second end of the second capacitor C2 and the second end of the third capacitor C3 are grounded respectively;
[0049] The power output subcircuit includes a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8 and a ninth capacitor C9, which are used to filter the output power voltage; wherein the first ends of the fourth capacitor C4, the fifth capacitor C5, the sixth capacitor C6, the seventh capacitor C7, the eighth capacitor C8 and the ninth capacitor C9 are respectively connected to the main control chip, and the second ends of the fourth capacitor C4, the fifth capacitor C5, the sixth capacitor C6, the seventh capacitor C7, the eighth capacitor C8 and the ninth capacitor C9 are grounded.
[0050] Based on the above embodiments, reference can be made to Figure 2 As shown, the base station chip circuit includes a base station chip, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a tenth capacitor C10, an eleventh capacitor C11, a twelfth capacitor C12, a thirteenth capacitor C13, a fourteenth capacitor C14, a second polarized capacitor C 2 And the first crystal oscillator Y1:
[0051] The eleventh capacitor C11 and the second polarized capacitor C 2 The power subcircuit is used to provide power for the base station chip; the second resistor R2, the third resistor R3 and the tenth capacitor C10 constitute a communication subcircuit for communicating with the main control chip; the first crystal oscillator Y1 and the fourth resistor R4 constitute an oscillator subcircuit for connecting the coil for the base station chip clock source and the antenna subcircuit to achieve communication with the key transceiver, and the antenna subcircuit is composed of the fifth resistor R5, the sixth resistor R6, the seventh resistor R7, the eighth resistor R8, the twelfth capacitor C12, the thirteenth capacitor C13 and the fourteenth capacitor C14, wherein:
[0052] The first end of the second resistor R2 is connected to the pin 14 of the main control chip, and the second end of the second resistor R2 is connected to the pin 14 of the base station chip; the first end of the third resistor R3 is connected to the pin 15 of the main control chip, and the second end of the third resistor R3 is connected to the first end of the tenth capacitor C10 and the pin 16 of the base station chip; the first end of the fourth resistor R4 is connected to the first end of the first crystal oscillator Y1 and the second transistor pin (pin 10) of the base station chip, and the second end of the fourth resistor R4 is connected to the second end of the first crystal oscillator Y1 and the first transistor pin (pin 11) of the base station chip; the first end of the fifth resistor R5 is connected to the base station The first end of the sixth resistor R6 is connected to the pin of the base station chip 7, and the second end of the sixth resistor R6 is connected to the first end of the fourteenth capacitor C14 and the first end of the thirteenth capacitor C13; the first end of the seventh resistor R7 is connected to the pin of the base station chip 1 and the first end of the eighth resistor R8, the second end of the seventh resistor R7 is connected to the second end of the twelfth capacitor C12 and the second antenna, and the second end of the eighth resistor R8 is connected to the pin of the base station chip 2; the first end of the eleventh capacitor C11 is connected to the external power supply, the second polarized capacitor C 2 The first end (positive electrode) of and the base station chip pins 8, 9 and 15; the second ends of the tenth capacitor C10, the eleventh capacitor C11, the twelfth capacitor C12 and the fourteenth capacitor C14 are grounded, and the second polarized capacitor C 2 The second end (negative pole) of is grounded, and the third end of the first crystal oscillator Y1 is grounded.
[0053] Based on the above embodiments, reference can be made to Figure 2 As shown, the anti-theft controller circuit also includes a key switch signal control circuit connected to the main control chip, and the key switch signal control circuit includes a ninth resistor R9, a tenth resistor R10, a fifteenth capacitor C15 and a sixteenth capacitor C16, which are used to wake up the main control chip, wherein:
[0054] The first end of the ninth resistor R9 is connected to the ignition switch, the first end of the fifteenth capacitor C15, the first end of the tenth resistor R10, the first end of the sixteenth capacitor C16 and the pin of the main control chip 9; the second ends of the tenth resistor R10, the fifteenth capacitor C15 and the sixteenth capacitor C16 are grounded.
[0055] Based on the above embodiments, reference can be made to Figure 2As shown, the anti-theft controller circuit also includes a clock circuit connected to the main control chip, the clock circuit includes a seventeenth capacitor C17, an eighteenth capacitor C18 and a second crystal oscillator Y2, which are used to provide an external vibration source for the main control chip, wherein:
[0056] The first end of the second crystal oscillator Y2 is connected to the first end of the seventeenth capacitor C17 and the first clock circuit pin (pin 32) of the main control chip, and the second end of the second crystal oscillator Y2 is connected to the first end of the eighteenth capacitor C18 and the second clock circuit pin (pin 31) of the main control chip; the second ends of the seventeenth capacitor C17 and the eighteenth capacitor C18 are grounded.
[0057] Based on the above embodiments, reference can be made to Figure 2 As shown, the LIN transceiver circuit further includes a nineteenth capacitor C19, a first end of the nineteenth capacitor C19 is connected to the pin of the main control chip 1, and a second end of the nineteenth capacitor C19 is grounded.
[0058] The embodiment of the present invention further provides an electronic anti-theft device, which includes the electronic anti-theft controller circuit provided by the above embodiments. The electronic anti-theft controller circuit of the electronic anti-theft device integrates the power supply, the main controller, the LIN transceiver, the high-side driver and the low-side driver on one chip, which reduces the volume of the electronic anti-theft controller (only 30% of the existing solutions on the market), and the high-integration chip solution improves the electromagnetic compatibility performance, ensures the consistency of the product, reduces material waste, and reduces the cost of the electronic anti-theft controller.
[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. An electronic anti-theft controller circuit, It is characterized in that It includes a main control chip and a base station chip circuit, the main control chip and the base station chip circuit are connected to realize the electronic anti-theft function; the main control chip integrates a micro control unit, a power management module, a local area interconnection network transceiver circuit, a high-side driver and a low-side driver, wherein: The microcontroller unit is used to process the collected signals; control the high-side and low-side drive outputs; control the serial peripheral interface or the input / output interface to communicate with the base station chip circuit; control the local area interconnection network transceiver to communicate with the power controller; process encryption and decryption algorithms and communication protocols; The power management module is used to convert the power supply voltage into a preset working voltage and collect real-time power supply voltage information; The local area interconnection network transceiver circuit is used to receive the authentication request information of the power controller and send the authentication result to the power controller; The high-side driver is used to control the anti-theft indicator light and the key reminder buzzer respectively through two high-side drivers; The low-side drive is used to control the relay through two low-side drives, wherein one low-side drive circuit controls the oil pump relay, and the other low-side drive circuit controls the starter relay or the main electric power supply relay; The base station chip circuit communicates with the key transceiver via a high frequency or low frequency antenna; The power management module includes a power input subcircuit, a power voltage acquisition subcircuit and a power output subcircuit, wherein: The power input subcircuit includes a diode, a first capacitor and a first polarized capacitor, which are used to provide power for the main control chip and provide filtering and anti-reverse connection protection for the power supply; wherein the positive electrode of the diode is connected to the battery, and the negative electrode of the diode is connected to the power input pin of the main control chip; the first end of the first capacitor is connected to the power input pin of the main control chip, and the first end of the first polarized capacitor is connected to the power input pin of the main control chip; the first end of the first capacitor and the second end of the first polarized capacitor are grounded respectively; The power supply voltage acquisition subcircuit includes a second capacitor, a first resistor and a third capacitor, which are used to provide the main control chip with a current-limited and filtered power supply voltage; wherein the first end of the second capacitor is connected to the first end of the first resistor; the second end of the first resistor is connected to the first end of the third capacitor and the main control chip; the second end of the second capacitor and the second end of the third capacitor are grounded respectively; The power output subcircuit includes a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor and a ninth capacitor, which are used to filter the output power voltage; wherein the first ends of the fourth capacitor, the fifth capacitor, the sixth capacitor, the seventh capacitor, the eighth capacitor and the ninth capacitor are respectively connected to the main control chip, and the second ends of the fourth capacitor, the fifth capacitor, the sixth capacitor, the seventh capacitor, the eighth capacitor and the ninth capacitor are grounded.
2. The electronic anti-theft controller circuit according to claim 1, It is characterized in that The base station chip circuit includes a base station chip, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a tenth capacitor, an eleventh capacitor, a twelfth capacitor, a thirteenth capacitor, a fourteenth capacitor, a second polarization capacitor and a first crystal oscillator; The eleventh capacitor and the second polarized capacitor constitute a power subcircuit for providing power to the base station chip; the second resistor, the third resistor and the tenth capacitor constitute a communication subcircuit for communicating with the main control chip; the first crystal oscillator and the fourth resistor constitute an oscillator subcircuit for connecting a coil for the base station chip clock source and the antenna subcircuit to communicate with the key transceiver, and the antenna subcircuit is composed of the fifth resistor, the sixth resistor, the seventh resistor, the eighth resistor, the twelfth capacitor, the thirteenth capacitor and the fourteenth capacitor, wherein: The first end of the second resistor is connected to the main control chip, and the second end of the second resistor is connected to the base station chip; the first end of the third resistor is connected to the main control chip, and the second end of the third resistor is connected to the first end of the tenth capacitor and the base station chip; the first end of the fourth resistor is connected to the first end of the first crystal oscillator and the second transistor pin of the base station chip, and the second end of the fourth resistor is connected to the second end of the first crystal oscillator and the first transistor pin of the base station chip; the first end of the fifth resistor is connected to the base station chip, and the second end of the fifth resistor is connected to the first end of the twelfth capacitor and the first antenna; the first end of the sixth resistor is connected to the base station chip, and the second end of the sixth resistor is connected to the first end of the fourteenth capacitor and the first end of the thirteenth capacitor; the first end of the seventh resistor is connected to the base station chip and the first end of the eighth resistor, the second end of the seventh resistor is connected to the second end of the twelfth capacitor and the second antenna, and the second end of the eighth resistor is connected to the base station chip; the first end of the eleventh capacitor is connected to an external power supply, the first end of the second polarized capacitor and the base station chip; the second ends of the tenth capacitor, the eleventh capacitor, the twelfth capacitor and the fourteenth capacitor are grounded, the second end of the second polarized capacitor is grounded, and the third end of the first crystal oscillator is grounded.
3. The electronic anti-theft controller circuit according to claim 1, It is characterized in that The anti-theft controller circuit also includes a key switch signal control circuit connected to the main control chip, and the key switch signal control circuit includes a ninth resistor, a tenth resistor, a fifteenth capacitor and a sixteenth capacitor, which are used to wake up the main control chip, wherein: The first end of the ninth resistor is connected to the ignition switch, the first end of the fifteenth capacitor, the first end of the tenth resistor, the first end of the sixteenth capacitor and the main control chip; the second ends of the tenth resistor, the fifteenth capacitor and the sixteenth capacitor are grounded.
4. The electronic anti-theft controller circuit according to claim 1, It is characterized in that The anti-theft controller circuit further includes a clock circuit connected to the main control chip, the clock circuit includes a seventeenth capacitor, an eighteenth capacitor and a second crystal oscillator, and is used to provide an external vibration source for the main control chip, wherein: The first end of the second crystal oscillator is connected to the first end of the seventeenth capacitor and the first clock circuit pin of the main control chip, and the second end of the second crystal oscillator is connected to the first end of the eighteenth capacitor and the second clock circuit pin of the main control chip; the second ends of the seventeenth capacitor and the eighteenth capacitor are grounded.
5. An electronic anti-theft device, It is characterized in that The electronic anti-theft device comprises the electronic anti-theft controller circuit according to any one of claims 1 to 4.
Citation Information
Patent Citations
Anti-theft device for automobile
CN104149737A
Electronic water pump controller
CN203783862U
Engine electronic control system system
CN205154413U
Device that cell -phone remote control was start -uped a car
CN205930588U
Electronic anti-theft controller circuit and electronic anti-theft device
CN212401136U