Automobile tire pressure sensor monitor

Abstract

The utility model discloses a monitor for an automobile tire pressure sensor. The monitor comprises a shell; the control key is embedded in the shell and used for receiving a control command, and the control command comprises a coding command; the main controller is arranged in the shell and is used for generating a new ID according to the coding command; the first radio frequency module is arranged in the shell and is used for sending the new ID to a replacement tire pressure sensor, so that the replacement tire pressure sensor takes the new ID as identity recognition information; wherein the replacement tire pressure sensor is used for replacing the fault tire pressure sensor. The tire pressure sensor is convenient to replace, and the replacement cost of the automobile tire pressure sensor can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of automobile manufacturing, in particular to an automobile tire pressure sensor monitor. Background Art

[0002] The tire pressure of an automobile refers to the gas pressure inside the tire. The tire pressure within a reasonable range is an important factor for the safe driving of an automobile. Therefore, the detection of tire pressure is also an important means to prevent automobile accidents.

[0003] At present, most automobiles are usually equipped with tire pressure sensors when leaving the factory, which can automatically detect the tire pressure. However, the tire pressure sensors are set on the tires. On the one hand, they are easily damaged; on the other hand, the tire pressure sensors cannot be powered externally, so that the built-in batteries of the tire pressure sensors cannot continue to detect the tire pressure after the battery power is exhausted.

[0004] In the prior art, since there is no unified standard for tire pressure sensors and there are various types, it is difficult for maintenance personnel or automobile maintenance personnel to quickly judge whether the tire pressure sensors are damaged, and it is also very difficult to replace the tire pressure sensors of the same model when the tire pressure sensors are abnormal; while replacing the tire pressure sensors of different models may cause the tire pressure monitoring system of the automobile itself to be unable to recognize the detection data of the tire pressure sensors. Content of the Utility Model

[0005] In order to solve the above technical problems or at least partially solve the above technical problems, the utility model provides an automobile tire pressure sensor monitor.

[0006] In a first aspect, the utility model provides an automobile tire pressure sensor monitor, comprising:

[0007] A housing;

[0008] A control button, embedded in the housing, for receiving a control command, where the control command includes an encoded command;

[0009] A main controller, arranged inside the housing, for generating a new ID according to the encoded command;

[0010] A first radio frequency module, arranged inside the housing, for sending the new ID to a replacement tire pressure sensor, so that the replacement tire pressure sensor uses the new ID as identity recognition information;

[0011] Wherein, the replacement tire pressure sensor is used to replace a faulty tire pressure sensor.

[0012] Optionally, the main controller includes:

[0013] A counter, for incrementing the count by 1 every time an encoded command is received;

[0014] An encoder, connected to the counter, is configured to generate the new ID according to the count output by the counter, where the new ID is a code composed of high and low levels;

[0015] A serial port unit, configured to receive the new ID in a serial manner and send the new ID to the first radio frequency module in a serial manner.

[0016] Optionally, the serial port unit includes:

[0017] A fourth capacitor, with its first terminal connected to the first power supply and its second terminal grounded;

[0018] A fifth capacitor, with its first terminal connected to the first power supply and its second terminal grounded;

[0019] A second transceiver, with its first pin connected to the first power supply, its second pin connected to the output terminal of the encoder, its third pin connected to the first radio frequency module, and its fourth, fifth, sixth, seventh, and eighth pins grounded.

[0020] Optionally, the first radio frequency module includes:

[0021] A third controller, with its third pin connected to the GDO2 port, its sixth pin connected to the GDO0 port, its fourth, ninth, eleventh, fourteenth, fifteenth, and eighteenth pins connected to the third power supply, and its sixteenth and nineteenth pins grounded,

[0022] A fifth capacitor, with its positive electrode connected to the fourth pin of the third controller and also to the third power supply, and its negative electrode grounded;

[0023] A thirteenth capacitor, with its first terminal connected to the third power supply and its second terminal grounded;

[0024] A fifteenth capacitor, with its first terminal connected to the fifth pin of the third controller and its second terminal grounded;

[0025] A sixteenth capacitor, with its first terminal connected to the fourth pin of the third controller and its second terminal grounded;

[0026] A seventeenth capacitor, with its first terminal connected to the third power supply and its second terminal grounded;

[0027] A thirty-second resistor, with its first terminal connected to the seventeenth pin of the third controller and its second terminal grounded;

[0028] An eighteenth capacitor, with its first terminal connected to the thirteenth pin of the third controller;

[0029] A twentieth capacitor, with its first terminal grounded and its second terminal connected to the second terminal of the eighteenth capacitor;

[0030] The nineteenth capacitor, the first terminal of which is connected to the twelfth pin of the third controller;

[0031] The twenty-first capacitor, the first terminal of which is connected to the second terminal of the eighteenth capacitor, and the second terminal of which is connected to the second terminal of the nineteenth capacitor;

[0032] The first inductor, the first terminal of which is connected to the second terminal of the nineteenth capacitor;

[0033] The twenty-third capacitor, the first terminal of which is connected to the second terminal of the first inductor, and the second terminal of which is grounded;

[0034] The second inductor, the first terminal of which is connected to the second terminal of the eighteenth capacitor;

[0035] The twenty-second capacitor, the first terminal of which is connected to the second terminal of the nineteenth capacitor;

[0036] The third inductor, the first terminal of which is connected to the second terminal of the second inductor and also to the second terminal of the twenty-second capacitor;

[0037] The fourth inductor, the first terminal of which is connected to the second terminal of the third inductor;

[0038] The twenty-fourth capacitor, the first terminal of which is connected to the second terminal of the third inductor, and the second terminal of which is grounded;

[0039] The twenty-fifth capacitor, the first terminal of which is connected to the second terminal of the fourth inductor, and the second terminal of which is grounded;

[0040] The twenty-sixth capacitor, the first terminal of which is connected to the second terminal of the fourth inductor;

[0041] The twenty-seventh capacitor, the first terminal of which is connected to the second terminal of the twenty-sixth capacitor and also to the second antenna, and the second terminal of which is grounded;

[0042] The eleventh capacitor, the second terminal of which is grounded;

[0043] The twelfth capacitor, the first terminal of which is connected to the first terminal of the eleventh capacitor, and the second terminal of which is connected to the second terminal of the eleventh capacitor;

[0044] The ninth capacitor, the first terminal of which is grounded;

[0045] The tenth capacitor, the first terminal of which is grounded;

[0046] The thirty-first resistor, the first terminal of which is connected to the second terminal of the tenth capacitor and also to the eighth pin of the third controller, and the second terminal of which is connected to the second terminal of the ninth capacitor and also to the tenth pin of the third controller;

[0047] The third crystal, the first terminal of which is connected to the second terminal of the tenth capacitor, and the second terminal of which is connected to the second terminal of the ninth capacitor.

[0048] Optionally, the control command further includes a wake-up command;

[0049] The monitor further includes a second RF module for broadcasting and sending the wake-up command to wake up the tire pressure sensor according to the wake-up command and generate information indicating normal operation;

[0050] The second RF module is further configured to receive the signal indicating normal operation sent by the tire pressure sensor after waking up.

[0051] Optionally, the second RF module includes:

[0052] A twenty-ninth capacitor, the second end of which is connected to the first end of the second antenna;

[0053] A thirtieth capacitor, the first end of which is connected to the first power supply and the second end of which is grounded;

[0054] A sixth transceiver, the first pin of which is connected to the first power supply, the second pin of which is connected to the first end of the twenty-ninth capacitor, the third pin of which is connected to the second end of the second antenna, the fourth pin of which is grounded, the fifth pin of which is connected to the second power supply, the sixth pin of which is connected to the sleep command input port, the seventh pin of which is connected to the PWM1 input port, and the eighth pin of which is connected to the PWM2 input port;

[0055] The second antenna, the second end of which is connected to the third pin of the sixth transceiver.

[0056] Optionally, the control command further includes a tire pressure reading command,

[0057] The monitor further includes a tire pressure reading module for reading tire pressure information according to a tire pressure reading signal;

[0058] The second RF module is further configured to send the tire pressure reading signal to the tire pressure sensor after receiving the signal indicating normal operation;

[0059] The second RF module is further configured to receive the tire pressure information sent by the tire pressure sensor and send the tire pressure information to the tire pressure reading module.

[0060] Optionally, the tire pressure reading module includes:

[0061] A thirty-third resistor, the first end of which is connected to the second power supply and the second end of which is connected to the seventh pin of the fourth controller;

[0062] A twenty-eighth capacitor, the first end of which is connected to the second end of the thirty-third resistor and the second end of which is grounded;

[0063] A seventh capacitor, the first end of which is grounded;

[0064] The eighth capacitor, with its first terminal grounded;

[0065] The thirtieth resistor, with its first terminal connected to the second terminal of the eighth capacitor and also to the fifth pin of the fourth controller, and its second terminal connected to the second terminal of the seventh capacitor and also to the sixth pin of the fourth controller;

[0066] The second crystal, with its first terminal connected to the second terminal of the eighth capacitor and its second terminal connected to the second terminal of the seventh capacitor;

[0067] The fourth controller, with its forty-eighth pin connected to the second power supply, its twenty-sixth pin connected to the PWM1 input port, its twenty-fifth pin connected to the PWM2 input port, its thirty-ninth pin connected to the sleep command input port, its thirteenth pin connected to the GDO0 port, and its fourteenth pin connected to the GDO2 port.

[0068] Optionally, the monitor further includes:

[0069] A display screen for displaying the tire pressure information of the tire pressure sensor;

[0070] A memory for storing the tire pressure information.

[0071] Optionally, the display screen is embedded in the housing.

[0072] The present utility model provides an automotive tire pressure sensor monitor, including: a housing; control keys embedded in the housing for receiving control commands, where the control commands include encoded commands; a main controller disposed within the housing for generating a new ID according to the encoded commands; a first radio frequency module disposed within the housing for sending the new ID to a replacement tire pressure sensor so that the replacement tire pressure sensor uses the new ID as identity recognition information; wherein, the replacement tire pressure sensor is used to replace a faulty tire pressure sensor. In the embodiments of the present utility model, a new ID is generated for the replacement tire pressure sensor, and the replacement tire pressure sensor uses the new ID as identity recognition information. If a certain tire pressure sensor fails, by using the tire pressure sensor monitor of the present utility model, after replacing the faulty tire pressure sensor with a replacement tire pressure sensor, a new ID can be generated for the replacement tire pressure sensor as identity recognition information, enabling the replacement tire pressure sensor to be recognized and managed by the automotive tire pressure sensor management system, which is convenient for users, facilitates the replacement of faulty tire pressure sensors, improves the safety performance of the vehicle, and reduces the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] The drawings herein are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present utility model and, together with the specification, are used to explain the principles of the present utility model.

[0074] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0075] Figure 1 The figure shows a schematic diagram of an automotive tire pressure sensor monitor according to an embodiment of the present invention;

[0076] Figure 2 The figure shows a schematic diagram of an application scenario according to an embodiment of the present invention;

[0077] Figure 3 The figure shows a circuit schematic diagram of a serial port unit according to an embodiment of the present invention;

[0078] Figure 4 The figure shows a circuit schematic diagram of a first radio frequency module according to an embodiment of the present invention;

[0079] Figure 5 The figure shows a circuit schematic diagram of a second radio frequency module according to an embodiment of the present invention;

[0080] Figure 6 The figure shows a circuit schematic diagram of a tire pressure reading module according to an embodiment of the present invention;

[0081] Among them, 110 is the housing; 120 is the control button; 130 is the display screen. Detailed implementation manners

[0082] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0083] Figure 1 The figure shows a schematic diagram of an automotive tire pressure sensor monitor according to an embodiment of the present invention. Figure 1 The shown monitor is handheld. In other embodiments of the present invention, the monitor can also be a desktop instrument or an instrument of other styles. If it is a desktop instrument, a handheld detection port can be configured to shorten the distance between the detector and the tire pressure sensor.

[0084] Figure 2 The figure shows a schematic diagram of an application scenario according to an embodiment of the present invention, such as Figure 2As shown, pressure sensors are provided on each tire of the vehicle, and a vehicle tire pressure sensor management system is also provided on the vehicle to manage the pressure sensors, etc. The tire pressure sensor monitor according to the embodiment of the present invention can monitor the pressure sensors.

[0085] In the embodiment of the present invention, the vehicle tire pressure sensor management system is an inherent system of the vehicle and can be a certain management module in the vehicle management system.

[0086] As Figure 1 shown, a vehicle tire pressure sensor monitor according to an embodiment of the present invention includes:

[0087] A housing 110;

[0088] Control keys 120, embedded in the housing 110, for receiving control commands, the control commands including encoded commands;

[0089] A main controller, disposed in the housing 110, for generating a new ID according to the encoded command;

[0090] A first radio frequency module, disposed in the housing 110, for sending the new ID to a replacement tire pressure sensor so that the replacement tire pressure sensor uses the new ID as identity recognition information;

[0091] Wherein, the replacement tire pressure sensor is used to replace a faulty tire pressure sensor.

[0092] The main controller and the first radio frequency module can be disposed in the housing 110, so Figure 1 not shown in the figure.

[0093] The control keys can be used to receive control commands, and the control commands can be generated by a single key or a combination of multiple keys, which will not be elaborated here.

[0094] Generally, the ID of a brand-new tire pressure sensor can be blank. Therefore, even if a faulty tire pressure sensor is replaced, it cannot be recognized and managed by the vehicle tire pressure sensor management system, making it impossible for the user to know the tire pressure of the vehicle.

[0095] In the embodiment of the present invention, a new ID is generated for the replacement tire pressure sensor so that the replacement tire pressure sensor uses the new ID as identity recognition information. If a certain tire pressure sensor fails, by using the tire pressure sensor monitor of the present invention, after replacing the faulty tire pressure sensor with a replacement tire pressure sensor, a new ID can be generated for the replacement tire pressure sensor as identity recognition information, so that the replacement tire pressure sensor can be recognized and managed by the vehicle tire pressure sensor management system, which is convenient for the user, convenient for replacing the faulty tire pressure sensor, improves the safety performance of the vehicle, and reduces the maintenance cost.

[0096] In the embodiment of the present utility model, if the type of the replacement tire pressure sensor is compatible with the type of the tire pressure sensor to be diagnosed, the generated new ID is the same as the existing ID of the tire pressure sensor to be diagnosed;

[0097] If the type of the replacement tire pressure sensor is not compatible with the type of the tire pressure sensor to be diagnosed, the generated new ID is different from the existing ID of the tire pressure sensor to be diagnosed.

[0098] In the embodiment of the present utility model, according to the type of the replacement tire pressure sensor and the type of the faulty tire pressure sensor, it is confirmed whether the new ID is the same as the existing ID: If the types are compatible, it means that the replacement tire pressure sensor can also be recognized by the vehicle tire pressure sensor management system when using the existing ID, so the generated new ID is the same as the ID of the faulty tire pressure sensor; If the types are not compatible, the replacement tire pressure sensor may not be recognized by the vehicle tire pressure sensor management system when using the existing ID, so the new ID is different from the ID of the faulty tire pressure sensor.

[0099] When the new ID is different from the ID of the faulty tire pressure sensor, in the embodiment of the present utility model, it will be synchronized to the vehicle tire pressure management system with the new ID, so that the vehicle tire pressure management system can recognize the replacement tire pressure sensor with the new ID.

[0100] In the embodiment of the present utility model, a new ID is generated for the tire pressure sensor, so that whether the tire pressure sensor used as a replacement is the same as or compatible with the original tire pressure sensor, the faulty tire pressure sensor can be replaced when the tire pressure sensor fails, enabling the vehicle to replace the faulty part without waiting for the same tire pressure sensor to be available, which is convenient for users and reduces the probability of other failures caused by tire pressure sensor failures in the vehicle, improving the safety performance of the vehicle. At the same time, in the embodiment of the present utility model, the repair shop also does not need to stock all types or more types of tire pressure sensors, reducing costs and facilitating the repair personnel.

[0101] As Figure 1 shown, the monitor in the embodiment of the present utility model further includes:

[0102] A display screen 130 for displaying the tire pressure information of the tire pressure sensor;

[0103] A memory for storing the tire pressure information.

[0104] In the embodiment of the present utility model, the display screen 130 is embedded in the housing 110.

[0105] In the embodiment of the present utility model, the main controller includes:

[0106] A counter for incrementing the count by 1 each time a coding command is received;

[0107] An encoder, connected to the counter, is configured to generate the new ID according to the count output by the counter, where the new ID is a code composed of high and low levels.

[0108] A serial port unit is configured to receive the new ID in a serial manner and send the new ID to the first radio frequency module in a serial manner.

[0109] In the embodiment of the present invention, the counter and the encoder can be devices / functional units in the prior art, which will not be elaborated herein.

[0110] In the embodiment of the present invention, the main controller can also adopt an integrated chip in the prior art, which is used to implement the above functions and will not be elaborated herein.

[0111] Figure 3 The following shows the circuit schematic diagram of the serial port unit in the embodiment of the present invention. As Figure 3 shown, the serial port unit includes:

[0112] A fourth capacitor C4, with its first end connected to the first power supply and its second end grounded;

[0113] A fifth capacitor C5, with its first end connected to the first power supply and its second end grounded;

[0114] A second transceiver U2, with its first pin connected to the first power supply, its second pin connected to the output end of the encoder, its third pin connected to the first radio frequency module, and its fourth, fifth, sixth, seventh, and eighth pins grounded.

[0115] In the embodiment of the present invention, multiple power supplies are configured according to the requirements of the devices / functional units and the preset voltage. The first power supply can be a 5V power supply.

[0116] Figure 4 The following shows the circuit schematic diagram of the first radio frequency module in the embodiment of the present invention. As Figure 4 shown, the first radio frequency module includes:

[0117] A third controller U3, with its third pin connected to the GDO2 port, its sixth pin connected to the GDO0 port, and its fourth, ninth, eleventh, fourteenth, fifteenth, and eighteenth pins connected to the third power supply, and its sixteenth and nineteenth pins grounded.

[0118] A fifth capacitor C5, with its positive electrode connected to the fourth pin of the third controller U3 and also connected to the third power supply, and its negative electrode grounded;

[0119] A thirteenth capacitor C13, with its first end connected to the third power supply and its second end grounded;

[0120] The fifteenth capacitor C15 has its first terminal connected to the fifth pin of the third controller U3 and its second terminal grounded;

[0121] The sixteenth capacitor C16 has its first terminal connected to the fourth pin of the third controller U3 and its second terminal grounded;

[0122] The seventeenth capacitor C17 has its first terminal connected to the third power supply and its second terminal grounded;

[0123] The thirty-second resistor R32 has its first terminal connected to the seventeenth pin of the third controller U3 and its second terminal grounded;

[0124] The eighteenth capacitor C18 has its first terminal connected to the thirteenth pin of the third controller U3;

[0125] The twentieth capacitor C20 has its first terminal grounded and its second terminal connected to the second terminal of the eighteenth capacitor C18;

[0126] The nineteenth capacitor C19 has its first terminal connected to the twelfth pin of the third controller U3;

[0127] The twenty-first capacitor C21 has its first terminal connected to the second terminal of the eighteenth capacitor C18 and its second terminal connected to the second terminal of the nineteenth capacitor C19;

[0128] The first inductor L1 has its first terminal connected to the second terminal of the nineteenth capacitor C19;

[0129] The twenty-third capacitor C23 has its first terminal connected to the second terminal of the first inductor L1 and its second terminal grounded;

[0130] The second inductor L2 has its first terminal connected to the second terminal of the eighteenth capacitor C18;

[0131] The twenty-second capacitor C22 has its first terminal connected to the second terminal of the nineteenth capacitor C19;

[0132] The third inductor L3 has its first terminal connected to the second terminal of the second inductor L2 and also to the second terminal of the twenty-second capacitor C22;

[0133] The fourth inductor L4 has its first terminal connected to the second terminal of the third inductor L3;

[0134] The twenty-fourth capacitor C24 has its first terminal connected to the second terminal of the third inductor L3 and its second terminal grounded;

[0135] The twenty-fifth capacitor C25 has its first terminal connected to the second terminal of the fourth inductor L4 and its second terminal grounded;

[0136] The twenty-sixth capacitor C26, the first end of which is connected to the second end of the fourth inductor L4;

[0137] The twenty-seventh capacitor C27, the first end of which is connected to the second end of the twenty-sixth capacitor C26 and is also connected to the second antenna, and the second end of which is grounded;

[0138] The eleventh capacitor C11, the second end of which is grounded;

[0139] The twelfth capacitor C12, the first end of which is connected to the first end of the eleventh capacitor C11, and the second end of which is connected to the second end of the eleventh capacitor C11;

[0140] The ninth capacitor C9, the first end of which is grounded;

[0141] The tenth capacitor C10, the first end of which is grounded;

[0142] The thirty-first resistor C31, the first end of which is connected to the second end of the tenth capacitor C10 and is also connected to the eighth pin of the third controller U3, and the second end of which is connected to the second end of the ninth capacitor C9 and is also connected to the tenth pin of the third controller U3;

[0143] The third crystal X3, the first end of which is connected to the second end of the tenth capacitor C10, and the second end of which is connected to the second end of the ninth capacitor C9.

[0144] The first RF module can be a 433 / 315 MHz RF transceiver module.

[0145] In the embodiment of the present invention, through the serial port unit, a new ID can be sent to the first RF module, and the first RF module sends the new ID to the tire pressure sensor.

[0146] The third power supply can be VDD, and the specific value of VDD is determined according to the chip model and the circuit device values.

[0147] In the embodiment of the present invention, the control command further includes a wake-up command;

[0148] The monitor further includes a second RF module for broadcasting and sending the wake-up command so that the tire pressure sensor wakes up according to the wake-up command and generates a normal working information;

[0149] The second RF module is further used for receiving the normal working signal sent by the tire pressure sensor after waking up.

[0150] Figure 5 The following shows the circuit schematic diagram of the second RF module of the embodiment of the present invention, as Figure 5 shown, the second RF module includes:

[0151] The twenty-ninth capacitor C29, the second terminal of which is connected to the first terminal of the second antenna;

[0152] The thirtieth capacitor C30, the first terminal of which is connected to the first power supply, and the second terminal of which is grounded;

[0153] The sixth transceiver U6, the first pin of which is connected to the first power supply, the second pin of which is connected to the first terminal of the twenty-ninth capacitor C29, the third pin of which is connected to the second terminal of the second antenna, the fourth pin of which is grounded, the fifth pin of which is connected to the second power supply, the sixth pin of which is connected to the sleep command input port, the seventh pin of which is connected to the PWM1 input port, and the eighth pin of which is connected to the PWM2 input port;

[0154] For the second antenna, the second terminal of which is connected to the third pin of the sixth transceiver U6.

[0155] In the embodiment of the present invention, the second radio frequency module may be a 125K radio frequency transmission module. The second power supply may be a 3.8V power supply.

[0156] In the embodiment of the present invention, the control command further includes a tire pressure reading command.

[0157] The monitor further includes a tire pressure reading module for reading tire pressure information according to the tire pressure reading signal;

[0158] The second radio frequency module is further configured to send the tire pressure reading signal to the tire pressure sensor after receiving the normal operation signal;

[0159] The second radio frequency module is further configured to receive the tire pressure information sent by the tire pressure sensor and send the tire pressure information to the tire pressure reading module.

[0160] Figure 6 Shown is a circuit schematic diagram of the tire pressure reading module according to the embodiment of the present invention. As Figure 6 shown, the tire pressure reading module includes:

[0161] The thirty-third resistor R33, the first terminal of which is connected to the second power supply, and the second terminal of which is connected to the seventh pin of the fourth controller U4;

[0162] The twenty-eighth capacitor C28, the first terminal of which is connected to the second terminal of the thirty-third resistor R33, and the second terminal of which is grounded;

[0163] The seventh capacitor C7, the first terminal of which is grounded;

[0164] The eighth capacitor C8, the first terminal of which is grounded;

[0165] The thirtieth resistor R30 has its first end connected to the second end of the eighth capacitor C8 and also to the fifth pin of the fourth controller U4, and its second end connected to the second end of the seventh capacitor C7 and also to the sixth pin of the fourth controller U4;

[0166] The second crystal X2 has its first end connected to the second end of the eighth capacitor C8 and its second end connected to the second end of the seventh capacitor C7;

[0167] The fourth controller U4 has its forty-eighth pin connected to the second power supply, its twenty-sixth pin connected to the PWM1 input port, its twenty-fifth pin connected to the PWM2 input port, its thirty-ninth pin connected to the sleep command input port, its thirteenth pin connected to the GDO0 port, and its fourteenth pin connected to the GDO2 port.

[0168] The embodiment of the present utility model can facilitate users, improve the safety performance of the vehicle, and reduce the vehicle maintenance cost.

[0169] It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0170] The above are only specific embodiments of the present utility model, enabling those skilled in the art to understand or implement the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vehicle tire pressure sensor monitor, characterized in that: include: shell; A control button, embedded in the housing, for receiving a control command, wherein the control command includes a coded command; A main controller, disposed in the housing, for generating a new ID according to the coding command; a first radio frequency module, disposed in the housing, for sending the new ID to the replacement tire pressure sensor, so that the replacement tire pressure sensor uses the new ID as identity information; The replacement tire pressure sensor is used to replace a faulty tire pressure sensor.

2. The monitoring device according to claim 1, characterized in that: The main controller comprises: A counter, used for adding 1 to the count after receiving each encoding command; An encoder, connected to the counter, for generating the new ID according to the count output by the counter, wherein the new ID is a code composed of a high level and a low level; The serial port unit is used to receive the new ID in a serial manner and send the new ID to the first radio frequency module in a serial manner.

3. The monitoring device according to claim 2, characterized in that: The serial port unit comprises: a fourth capacitor, a first end of which is connected to the first power supply, and a second end of which is grounded; a fifth capacitor, a first end of which is connected to the first power supply and a second end of which is grounded; The second transceiver has a first pin connected to the first power supply, a second pin connected to the encoder output end, a third pin connected to the first RF module, and a fourth pin, a fifth pin, a sixth pin, a seventh pin and an eighth pin connected to ground.

4. The monitoring device according to claim 1, characterized in that: The first radio frequency module includes: A third controller, a third pin is connected to the GDO2 port, a sixth pin is connected to the GDO0 port, a fourth pin, a ninth pin, an eleventh pin, a fourteenth pin, a fifteenth pin and an eighteenth pin are connected to a third power source, and a sixteenth pin and a nineteenth pin are grounded. a fifth capacitor, a positive electrode of which is connected to the fourth pin of the third controller and the third power supply, and a negative electrode of which is grounded; a thirteenth capacitor, a first end of which is connected to the third power supply and a second end of which is grounded; A fifteenth capacitor, a first end of which is connected to the fifth pin of the third controller, and a second end of which is grounded; A sixteenth capacitor, a first end of which is connected to the fourth pin of the third controller, and a second end of which is grounded; A seventeenth capacitor, a first end of which is connected to the third power supply, and a second end of which is grounded; A thirty-second resistor, a first end of which is connected to the seventeenth pin of the third controller, and a second end of which is grounded; An eighteenth capacitor, a first end of which is connected to the thirteenth pin of the third controller; A twentieth capacitor, a first end of which is grounded, and a second end of which is connected to the second end of the eighteenth capacitor; A nineteenth capacitor, a first end of which is connected to the twelfth pin of the third controller; A twenty-first capacitor, a first end of which is connected to the second end of the eighteenth capacitor, and a second end of which is connected to the second end of the nineteenth capacitor; A first inductor, a first end of which is connected to the second end of the nineteenth capacitor; A twenty-third capacitor, a first end of which is connected to the second end of the first inductor, and a second end of which is grounded; a second inductor, a first end of which is connected to the second end of the eighteenth capacitor; A twenty-second capacitor, a first end of which is connected to the second end of the nineteenth capacitor; a third inductor, a first end of which is connected to the second end of the second inductor and is also connected to the second end of the twenty-second capacitor; a fourth inductor, a first end of which is connected to the second end of the third inductor; A twenty-fourth capacitor, a first end of which is connected to the second end of the third inductor, and a second end of which is grounded; A twenty-fifth capacitor, a first end of which is connected to the second end of the fourth inductor, and a second end of which is grounded; A twenty-sixth capacitor, a first end of which is connected to the second end of the fourth inductor; A twenty-seventh capacitor, a first end of which is connected to the second end of the twenty-sixth capacitor and is also connected to the second antenna, and a second end of which is grounded; an eleventh capacitor, a second terminal of which is grounded; a twelfth capacitor, a first end of which is connected to the first end of the eleventh capacitor, and a second end of which is connected to the second end of the eleventh capacitor; A ninth capacitor, a first end of which is grounded; A tenth capacitor, a first end of which is grounded; a thirty-first resistor, a first end of which is connected to the second end of the tenth capacitor and to the eighth pin of the third controller, and a second end of which is connected to the second end of the ninth capacitor and to the tenth pin of the third controller; The third crystal has a first end connected to the second end of the tenth capacitor, and a second end connected to the second end of the ninth capacitor.

5. The monitoring instrument according to claim 1, characterized in that: The control command also includes a wake-up command; The monitoring instrument further includes a second radio frequency module for broadcasting the wake-up command so that the tire pressure sensor wakes up according to the wake-up command and generates normal working information; The second radio frequency module is also used to receive the normal working signal sent by the tire pressure sensor after being awakened.

6. The monitoring device according to claim 5, characterized in that: The second radio frequency module includes: A twenty-ninth capacitor, a second end of which is connected to the first end of the second antenna; A 30th capacitor, a first end of which is connected to the first power supply and a second end of which is grounded; a sixth transceiver, wherein the first pin is connected to the first power supply, the second pin is connected to the first end of the twenty-ninth capacitor, the third pin is connected to the second end of the second antenna, the fourth pin is grounded, the fifth pin is connected to the second power supply, the sixth pin is connected to the sleep command input port, the seventh pin is connected to the PWM1 input port, and the eighth pin is connected to the PWM2 input port; The second end of the second antenna is connected to the third pin of the sixth transceiver.

7. The monitoring instrument according to claim 5, characterized in that: The control command also includes a tire pressure reading command, The monitor also includes a tire pressure reading module for reading tire pressure information according to a tire pressure reading signal; The second radio frequency module is further used to send the tire pressure reading signal to the tire pressure sensor after receiving the normal working signal; The second radio frequency module is also used to receive the tire pressure information sent by the tire pressure sensor, and send the tire pressure information to the tire pressure reading module.

8. The monitoring instrument according to claim 7, characterized in that: The tire pressure reading module comprises: a thirty-third resistor, a first end of which is connected to the second power supply, and a second end of which is connected to the seventh pin of the fourth controller; A twenty-eighth capacitor, a first end of which is connected to the second end of the thirty-third resistor, and a second end of which is grounded; A seventh capacitor, a first end of which is grounded; An eighth capacitor, a first end of which is grounded; a thirtieth resistor, a first end of which is connected to the second end of the eighth capacitor and to the fifth pin of the fourth controller, a second end of which is connected to the second end of the seventh capacitor and to the sixth pin of the fourth controller; a second crystal, a first end of which is connected to the second end of the eighth capacitor, and a second end of which is connected to the second end of the seventh capacitor; The fourth controller, the 48th pin is connected to the second power supply, the 26th pin is connected to the PWM1 input port, the 25th pin is connected to the PWM2 input port, the 39th pin is connected to the sleep command input port, the 13th pin is connected to the GDO0 port, and the 14th pin is connected to the GDO2 port.

9. The monitoring instrument according to claim 1, characterized in that: The monitor also includes: A display screen, used for displaying the tire pressure information of the tire pressure sensor; A memory is used to store the tire pressure information.

10. The monitoring device according to claim 9, characterized in that: The display screen is embedded in the housing.

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