CN111458765A - Temperature judgment object prompting device and vehicle-mounted system - Google Patents
Temperature judgment object prompting device and vehicle-mounted system Download PDFInfo
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- CN111458765A CN111458765A CN202010240951.1A CN202010240951A CN111458765A CN 111458765 A CN111458765 A CN 111458765A CN 202010240951 A CN202010240951 A CN 202010240951A CN 111458765 A CN111458765 A CN 111458765A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
- G01V9/005—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00 by thermal methods, e.g. after generation of heat by chemical reactions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
- B60Q9/008—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for anti-collision purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
Abstract
The embodiment of the invention discloses a temperature judging object prompting device and a vehicle-mounted system, wherein the vehicle-mounted system comprises the temperature judging object prompting device, a vehicle battery, a left warning lamp module, a right warning lamp module, a buzzing module and a mobile terminal; the mobile terminal outputs a mode instruction to set a prompting mode of the temperature-judging object prompting device, the vehicle battery supplies power to the temperature-judging object prompting device, the temperature-judging object prompting device detects the temperature of the left side and the right side of the vehicle within a first preset range and transmits a signal within a second preset range, and object prompting is carried out according to the set prompting mode when the temperature is judged to meet a set condition or when a reflected signal is received. Whether have thing and suggestion on the side about judging the vehicle through the temperature, compare in the convex mirror about current, can not look the thing effect because of sunshine or light influence, and the initiative suggestion need not the driver distraction.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to a temperature judgment object prompting device and a vehicle-mounted system.
Background
Generally, when a vehicle is in a traveling state, a driver can observe whether the vehicle is on the left side or the right side by using the left rear-view mirror and the right rear-view mirror, but the driver cannot see whether the vehicle is on the right side or the left side because a visual dead angle exists between the position of the rear-view mirror and the visual angle of the driver. At present, manufacturers use a convex mirror to be installed above or below an original rearview mirror, and can more invisibly see whether a vehicle exists at certain angles, but the mode has two disadvantages: firstly, strong light is reflected, for example, when a sun is on or hung in the sun, the vehicle moves to the west, strong sunlight can reflect the eyes of the driver, and for example, when a night vehicle drives a high beam, a bright high beam can also reflect the eyes of the driver, so that the driving of the driver is influenced, and potential safety hazards are brought; and secondly, the mirror warning mirror has good effect in the daytime and cannot clearly see at night.
Disclosure of Invention
In view of the above technical problems, embodiments of the present invention provide a temperature determination object prompting device and a vehicle-mounted system, so as to solve the problem that the object viewing effect is affected by the glare of the existing left and right convex mirrors.
The embodiment of the invention provides a temperature judgment object-containing prompting device which is connected with a vehicle storage battery, a left warning lamp module, a right warning lamp module, a buzzer module and a mobile terminal and comprises a shell, wherein a circuit board is arranged in the shell, and a temperature sensing module, a control module, an included angle distance measuring module, a power supply module and a Bluetooth module are arranged on the circuit board;
the control module is connected with the temperature sensing module, the included angle distance measuring module and the Bluetooth module; the power supply module is connected with the temperature sensing module, the control module, the included angle distance measuring module and the Bluetooth module; the control module is externally connected with a buzzing module, the left and right warning lamp modules and the power supply module are externally connected with a vehicle storage battery, and the Bluetooth module is in communication connection with the mobile terminal;
the Bluetooth module receives a mode instruction output by the mobile terminal and transmits the mode instruction to the control module to set a prompt mode, and the temperature sensing module detects the temperature of each subarea in a first preset range on the left side and the right side of the vehicle and outputs corresponding temperature values; the included angle ranging module transmits signals in real time and detects whether reflected signals exist or not, and when the reflected signals are received, alarm signals are output to the control module; the control module calculates an average value according to the temperature values of all the zones, and outputs corresponding control signals to the left warning lamp module, the right warning lamp module and the buzzer module when judging that the temperature value of any zone is higher than the average value by a first threshold value or when receiving an alarm signal so as to prompt in a corresponding prompting mode; the power supply module converts the battery voltage of the vehicle into a power supply voltage to supply power; the control module also sends the temperature values of all the partitions to the mobile terminal through the Bluetooth module to be displayed.
Optionally, in the temperature-judging object-bearing prompting device, 7 signal lines are led out from the temperature-judging object-bearing prompting device, and a first signal line is a ground line and is connected with the negative electrode of a vehicle battery; the second signal line is a power line and is connected with the anode of the vehicle storage battery; the third signal line is a left-turn detection line and is connected with the anode of the left-turn lamp or is pulled high; the fourth signal line is a right-turn detection line and is connected with the positive pole of the right-turn lamp or is pulled high; the fifth signal line is a left warning control line, and the sixth signal line is a right warning control line which are connected with the left warning lamp module and the right warning lamp module; the seventh signal line is a prompt line and is connected with the buzzing module.
Optionally, in the temperature-judging and object-presenting prompting device, the temperature sensing module includes a matrix temperature sensing wafer, a first resistor and a second resistor; the 1 st pin of the matrix temperature sensing wafer is connected with the power supply end, one end of the first resistor and one end of the second resistor, the 2 nd pin of the matrix temperature sensing wafer is connected with the other end of the second resistor and the control module, the 3 rd pin of the matrix temperature sensing wafer is connected with the other end of the first resistor and the control module, the 4 th pin and the 5 th pin of the matrix temperature sensing wafer are both connected with the control module, and the 6 th pin of the matrix temperature sensing wafer is grounded.
Optionally, in the temperature-judging object-presenting device, the control module includes a microprocessor, a crystal oscillator, a first capacitor, a second capacitor, and a third capacitor;
a PB6 pin of the microprocessor is connected with a left-turn detection line, a PB7 pin of the microprocessor is connected with a right-turn detection line, an AD4/PA1 pin and an INT0/PA0 pin of the microprocessor are both connected with an included angle ranging module, a VCC pin of the microprocessor is connected with a power supply end and one end of a first capacitor, a VSS pin of the microprocessor is connected with the other end of the first capacitor and the ground, an FXO/PA3 pin of the microprocessor is connected with one end of a second capacitor and one end of a crystal oscillator, an FXI/PA4 pin of the microprocessor is connected with one end of a third capacitor and the other end of the crystal oscillator, and the other end of the second capacitor is connected with the other end; the PG4 pin, the PG5 pin and the PF1 pin of the microprocessor are connected with a Bluetooth module; the PB1 pin, the PB2 pin, the PB3 pin and the PF4 pin of the microprocessor are in one-to-one connection with the 5 th pin, the 4 th pin, the 3 rd pin and the 4 th pin of the matrix temperature sensing chip; the PB0 foot of microprocessor is through the external buzzer module of warning line, and the PD7 foot of microprocessor is through the external warning lamp module about left warning control line is external, and the PD6 foot of microprocessor is through the external warning lamp module about right warning control line is external.
Optionally, in the temperature determination object prompting device, the included angle distance measuring module includes an ultrasonic distance measuring chip, a1 st pin of the ultrasonic distance measuring chip is connected to the power supply terminal, a 2 nd pin of the ultrasonic distance measuring chip is connected to an AD4/PA1 pin of the microprocessor, a3 rd pin of the ultrasonic distance measuring chip is connected to an INT0/PA0 pin of the microprocessor, and a 5 th pin of the ultrasonic distance measuring chip is grounded.
Optionally, in the temperature determination and presence of an object prompting device, the power module includes a voltage stabilizing chip, a fourth capacitor and a fifth capacitor; the Vin pin of the voltage stabilizing chip is connected with the positive electrode of the vehicle battery and one end of the fourth capacitor, the GND pin of the voltage stabilizing chip is grounded, the Vout pin of the voltage stabilizing chip is connected with the power supply end and one end of the fifth capacitor, and the other end of the fourth capacitor and the other end of the fifth capacitor 5 are both grounded.
Optionally, in the temperature determination and presence of an object prompting device, the bluetooth module includes a bluetooth chip and a sixth capacitor, a VCC pin of the bluetooth chip is connected to the power supply terminal and one end of the sixth capacitor, and a GND pin of the bluetooth chip and the other end of the sixth capacitor are both grounded; the P0.0 pin, the P0.2 pin and the P0.3 pin of the Bluetooth chip are connected with the PF1 pin, the PG4 pin and the PG5 pin of the microprocessor in a one-to-one mode.
The second aspect of the embodiment of the invention provides a vehicle-mounted system, which comprises a vehicle storage battery, a left warning lamp module, a right warning lamp module, a buzzing module, a mobile terminal and the temperature judging object prompting device, wherein the temperature judging object prompting device is electrically connected with the vehicle storage battery, the left warning lamp module, the right warning lamp module and the buzzing module and is in communication connection with the mobile terminal;
the mobile terminal outputs a mode instruction to set a prompting mode of the temperature judging object prompting device, the vehicle battery supplies power to the temperature judging object prompting device, the temperature judging object prompting device detects the temperature of the left side and the right side of the vehicle within a first preset range and transmits a signal within a second preset range, and object prompting is carried out according to the set prompting mode when the temperature is judged to meet a set condition or when a reflected signal is received.
Optionally, in the vehicle-mounted system, the left and right warning light modules include a left warning light, a right warning light, a first triode, a second triode, a third resistor, a fourth resistor, a fifth resistor, and a sixth resistor; the positive pole of left side warning light passes through the positive pole of third resistance connection vehicle storage battery, the collecting electrode of first triode is connected to the negative pole of left side warning light, the base of first triode passes through the left warning control line of fifth resistance connection, the projecting pole ground connection of first triode, the positive pole of right side warning light passes through the positive pole of fourth resistance connection vehicle storage battery, the collecting electrode of second triode is connected to the negative pole of right side warning light, the base of second triode passes through the right warning control line of sixth resistance connection, the projecting pole ground connection of second triode.
Optionally, in the vehicle-mounted system, the buzzer module includes a buzzer, a third triode, and a seventh resistor; the positive pole of buzzer connects the positive pole of vehicle storage battery, and the negative pole of buzzer connects the collecting electrode of third triode, and the base of third triode passes through seventh resistance connection prompt line, and the projecting pole ground connection of third triode.
In the technical scheme provided by the embodiment of the invention, the vehicle-mounted system comprises a temperature judging object prompting device, a vehicle storage battery, a left warning lamp module, a right warning lamp module, a buzzer module and a mobile terminal, wherein the temperature judging object prompting device is electrically connected with the vehicle storage battery, the left warning lamp module, the right warning lamp module and the buzzer module; the mobile terminal outputs a mode instruction to set a prompting mode of the temperature judging object prompting device, the vehicle battery supplies power to the temperature judging object prompting device, the temperature judging object prompting device detects the temperature of the left side and the right side of the vehicle (the left side or the right side can be detected singly and determined according to actual conditions) within a first preset range and transmits signals within a second preset range (if objects exist within the second preset range, the signals are reflected to form corresponding reflection signals), and when the temperature is judged to meet set conditions or the reflection signals are received, object prompting is carried out according to the set prompting mode. Whether objects exist on the left side and the right side of the vehicle or not is judged according to the temperature and prompt is carried out, compared with the existing left convex mirror and the right convex mirror, the object viewing effect cannot be influenced by sunlight or light, and the driver is not required to be distracted by active prompt; and the accuracy of judging objects on the left side and the right side of the vehicle is ensured by combining the further judgment of the reflected signals, and the risk of colliding with the objects on the left lane and the right lane is greatly reduced.
Drawings
Fig. 1 is a block diagram of a vehicle-mounted system according to an embodiment of the present invention.
Fig. 2 is a schematic view of an installation position of the temperature judgment object prompting device in the embodiment of the invention.
Fig. 3 is a circuit diagram of a temperature sensing module according to an embodiment of the invention.
Fig. 4 is a circuit diagram of a control module according to an embodiment of the present invention.
Fig. 5 is a circuit diagram of an included angle ranging module according to an embodiment of the present invention.
Fig. 6 is a circuit diagram of a power module according to an embodiment of the invention.
Fig. 7 is a circuit diagram of a bluetooth module according to an embodiment of the present invention.
Fig. 8 is a circuit diagram of the left and right warning light modules in the embodiment of the present invention.
Fig. 9 is a circuit diagram of a buzzer module in the embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The embodiments of the present invention, and all other embodiments obtained by those skilled in the art without any inventive step, belong to the protection scope of the present invention.
Referring to fig. 1 and fig. 2, the vehicle-mounted system according to the embodiment of the present invention includes a temperature determination object prompting device, a vehicle battery, left and right warning light modules (i.e., a left warning light and a right warning light), a buzzer module, and a mobile terminal. The temperature judgment object prompting device is electrically connected with the vehicle storage battery, the left and right warning lamp modules and the buzzer module, and is in communication connection with the mobile terminal; the mobile terminal outputs a mode instruction to set a prompting mode of the temperature judging object prompting device, the vehicle battery supplies power to the temperature judging object prompting device, the temperature judging object prompting device detects the temperature of the left side and the right side of the vehicle (the left side or the right side can be detected singly and determined according to actual conditions) within a first preset range and transmits signals within a second preset range (if objects exist within the second preset range, the signals are reflected to form corresponding reflection signals), and when the temperature is judged to meet set conditions or the reflection signals are received, object prompting is carried out according to the set prompting mode.
Whether objects exist on the left side and the right side of the vehicle or not is judged according to the temperature and prompt is carried out, compared with the existing left convex mirror and the right convex mirror, the object viewing effect cannot be influenced by sunlight or light, and the driver is not required to be distracted by active prompt; and the accuracy of judging objects on the left side and the right side of the vehicle is ensured by combining the further judgment of the reflected signals, and the risk of colliding with the objects on the left lane and the right lane is greatly reduced.
In this embodiment, the temperature determination object prompting device includes a housing, a circuit board is disposed in the housing, and the circuit board is provided with a temperature sensing module 10, a control module 20, an included angle distance measuring module 30, a power module 40 and a bluetooth module 50; the control module 20 is connected with the temperature sensing module 10, the included angle distance measuring module 30 and the Bluetooth module 50; the power module 40 is connected with the temperature sensing module 10, the control module 20, the included angle distance measuring module 30 and the Bluetooth module 50; the control module 20 is externally connected with a buzzer module, the left and right warning lamp modules and the power module 40 are externally connected with a vehicle storage battery, and the Bluetooth module 50 is in communication connection with the mobile terminal. And the external connection, namely the temperature judgment object prompting device leads out a signal wire to be connected with a corresponding device in the vehicle. The bluetooth module 50 receives a mode instruction output by the mobile terminal and transmits the mode instruction to the control module 20 to set a prompt mode, and the temperature sensing module 10 detects the temperature of each subarea in a first preset range on the left and right sides of the vehicle and outputs a corresponding temperature value; the included angle ranging module 30 transmits a signal in real time and detects whether a reflected signal exists, and outputs an alarm signal to the control module 20 when receiving the reflected signal; the control module 20 calculates an average value according to the temperature values of the respective zones, and outputs corresponding control signals to the left and right warning light modules and the buzzer module when judging that the temperature value of any zone is higher than the average value by a first threshold value (or the temperature values of at least 2 adjacent zones are higher than the average value by a second threshold value) or when receiving an alarm signal, so as to prompt corresponding prompting modes. The power module 40 converts the battery voltage of the vehicle into a supply voltage +3.3V for power supply. The control module 20 may also send the temperature values of the respective partitions to the mobile terminal for display through the bluetooth module 50.
The temperature judging and object prompting device is mainly installed on a vehicle and is installed above or below a left rearview mirror 1, above or below a right rearview mirror 3 or on a vehicle roof 2 as shown in figure 2, 7 signal lines led out by the temperature judging and object prompting device are connected with devices inside the vehicle, the first signal line is a ground line and is connected with a negative electrode BAT-of a vehicle storage battery, the second signal line is a power line and is connected with a positive electrode BAT + of the vehicle storage battery, the third signal line is a left-turning detection line and is connected with a positive electrode L T L + of a left-turning lamp or is pulled high, the fourth signal line is a right-turning detection line and is connected with a positive electrode RT L + of a right-turning lamp or is pulled high, the fifth signal line is a left warning control line, the sixth signal line is a right warning control line and is connected with left and right warning lamp modules, and the seventh signal line is a prompting line and is connected with a buzzer module.
When the temperature judging object prompting device is installed on the roof 2, the left-turn detection line and the right-turn detection line can be directly connected with the anode of a vehicle storage battery or the two detection lines are pulled up to high level through the control module 20 when the temperature judging object prompting device is installed, so that no matter whether the vehicle turns left or right, the prompting can be realized as long as vehicles exist on the left side and the right side, if the left-turn detection line is connected with the anode L T L + of the left-turn lamp, the right-turn detection line is connected with the anode RT L + of the right-turn lamp, if the vehicle owner turns the left-turn lamp (the anode L T L + of the left-turn lamp is electrified), the control module 20 detects that the left-turn detection line is high level, only the temperature value in the range of the left side of the vehicle is judged and the prompting of the object existence is carried out at the moment, if the vehicle owner turns the right-.
When the temperature judging and object prompting device is specifically implemented, the temperature judging and object prompting device can be set to be 3 types according to the installation position, namely left-side special use, right-side special use and two-side sharing. The left special temperature judging object prompting device can remove a right-turning detection line and a right warning control line during production, and similarly, the right special temperature judging object prompting device can remove a left-turning detection line and a left warning control line during production; therefore, wiring can be reduced, and cost is saved.
In this embodiment, the mobile terminal is pre-installed with a corresponding temperature judgment APP, and a prompt mode can be set, the prompt mode includes a mute mode, that is, a user sends a mute mode command through the mobile terminal, the bluetooth module 50 receives the command and transmits the command to the control module 20, the control module 20 disconnects the prompt line according to the mute mode command, and the buzzer does not sound to give an alarm if the prompt line is not connected to the buzzer, a sound and light alarm mode (default) is set, the mobile terminal sends a prompt mode command, the control module 20 pulls up the left rotation detection line and the right rotation detection line, and lights the corresponding alarm lamp and makes the buzzer sound to give an alarm if an object is detected on the left side or the right side, and a lane change mode command is sent by the mobile terminal, the control module 20 connects the left rotation detection line with the positive pole L T L + of the left rotation lamp, and connects the positive pole RT L + of the right rotation lamp, so that the alarm lamp lights and the beep when the left rotation lamp is turned on the left side, and the right rotation detection line lights the right rotation lamp.
Referring to fig. 3, in the present embodiment, the temperature sensing module 10 includes a matrix temperature sensing chip U1, a first resistor R1, and a second resistor R2; the 1 st pin of the matrix temperature sensing wafer U1 is connected with a power supply end (generated by a power supply module and providing 3.3V power supply voltage), one end of a first resistor R1 and one end of a second resistor R2, the 2 nd pin of the matrix temperature sensing wafer U1 is connected with the other end of the second resistor R2 and the control module 20, the 3 rd pin of the matrix temperature sensing wafer U1 is connected with the other end of the first resistor R1 and the control module 20, the 4 th pin and the 5 th pin of the matrix temperature sensing wafer U1 are both connected with the control module 20, and the 6 th pin of the matrix temperature sensing wafer U1 is grounded.
The matrix temperature sensing wafer U1 is preferably AMG8833, which is a8 × 8 rectangular thermopile array infrared sensor (Grid-EYE) side by side, which contains 64 thermopile elements in an 8 × 8 Grid layout, and can detect the temperature of the surface of an object (static and moving, non-living object and human object) without contacting the object to be detected, each thermopile element is focused through a fresnel filter to read the maximum temperature in a range of 7 meters far, the transverse observation range is divided into eight zones, the total angle is about 120 degrees, each zone is about 15 degrees, the length is about 87.5 centimeters (700/8 is 87.5), the longitudinal observation range is divided into eight zones or four zones, each zone can detect a length of 7 meters far and a height of 2 meters, each longitudinal induction height is 25 centimeters or 50 centimeters, and the induction range of one thermopile element is 87.5 × 50 centimeters, so that whether the object to be detected is a person or a vehicle can be distinguished.
Referring to fig. 4, the control module 20 includes a microprocessor U2, a crystal oscillator Y1, a first capacitor C1, a second capacitor C2 and a third capacitor C3, a PB2 pin of the microprocessor U2 is connected to a left-turn detection line (default connection to an anode 2T 2 + of a left-turn lamp), a PB2 pin of the microprocessor U2 is connected to a right-turn detection line (default connection to an anode RT 2 + of a right-turn lamp), AD 2/PA 2 pin and INT 2/PA 2 pin of the microprocessor U2 are connected to the angle measuring module 30, a VCC pin of the microprocessor U2 is connected to a power supply terminal and one terminal of the first capacitor C2, a PB2 pin of the microprocessor U2 is connected to the other terminal of the first capacitor C2 and ground, an FXO/PA 2 pin of the microprocessor U2 is connected to one terminal of the second capacitor C2 and one terminal of the crystal oscillator Y2, a PB i/PA 2 pin PB2 pin is connected to one terminal of the third capacitor C2 and the PB2, a PB p PB2 pin is connected to the microprocessor 2, a left-PF 2, a left-p 2 of the microprocessor 2, a left-p 2, a PF 2, a pair of a warning pin of a warning module 2, a warning pin of a warning module 2, a warning module is connected to a blue-p 2, a blue-.
The type of the microprocessor U2 is preferably TM57F L A80, the crystal oscillator Y1 is used for providing a clock for the microprocessor U2 to work, the power module 40 provides a +3.3V power supply voltage for supplying power to the microprocessor U2, the microprocessor U2 sends a request instruction to the matrix temperature sensing wafer U1. through a control signal AD _ SE L ECT every preset time (once every 1 second or once 1/10 seconds, which can be set according to actual requirements), then starts to calculate a temperature value in each zone after receiving the request instruction, outputs an interrupt signal INT to the microprocessor U2 after calculation is completed, the microprocessor U2 reads the temperature value of the matrix wafer U1 through a serial control signal (SDA, SC L). the microprocessor U2 calculates an average value as an ambient temperature according to the temperature values of the respective zones, when the microprocessor U2 judges that the temperature value of any zone is higher than the average value by a first threshold value (for example, the temperature value can be set to 10 degrees or 40 degrees in winter), or when the average value of at least 2 zones is higher than the temperature value of the zone is higher than the temperature value, a left side of the temperature, or a warning signal is output by a warning lamp alarm signal, a BUZZER 94-PD-W-III signal, when the microprocessor U-P94 BUZZER is output by a left-P94 BUZZER, and a BUZZER module (a BUZZER), and a BUZZER of a BUZZER for a left side of a right side of a BUZZER 86.
In specific implementation, the microprocessor U2 may send a configuration command to the matrix temperature sensing chip U1 via the control signal AD _ SE L ECT, for controlling the matrix temperature sensing chip U1 to feed back the highest temperature value, the lowest temperature value, or the calculated average value in each zone as a temperature value to the microprocessor U2., where the highest temperature value is used as the temperature value.
The PF1 pin of the microprocessor U2 outputs an enable signal BT P0.0 to control the work of the Bluetooth module, the PG4 pin of the microprocessor U2 receives a mode command transmitted by the Bluetooth module to configure a prompting mode, for example, a mute mode is adopted, the PB0 pin of the microprocessor U2 can be suspended, the positive electrode and the negative electrode of a buzzer cannot sound if a loop cannot be formed, an audible and visual alarm mode is adopted, the microprocessor U2 directly connects the left-turn detection line and the right-turn detection line of the microprocessor U2 with the 3.3V voltage output by the power module 40 to be pulled high, and the microprocessor U2 keeps the connection state that the left-turn detection line of the PB6 pin is connected with the positive electrode L T L + of the left-turn lamp and the right-turn detection line of the PB7 pin is connected with the positive electrode RT L +.
The PG5 foot of microprocessor U2 sends the temperature value of each subregion to bluetooth module, sends to the mobile terminal through bluetooth module and shows, and the mobile terminal can distinguish the temperature height by green yellow red color, and the mobile terminal can be used as the environment and observe like this, can regard as exempting from light source heat sensing camera to use in the open air. And the light and the buzzing state can also be sent to the mobile terminal for display, for example, when the PB0 pin of the microprocessor U2 outputs a high level to control the buzzing module to be switched on for sounding, the PG5 pin of the microprocessor U2 sends out the information of the sounding prompt to the mobile terminal through the Bluetooth module. An AD4/PA1 pin of the microprocessor U2 outputs an interrogation signal Trig to the angle ranging module 30 to start the angle ranging module 30 to perform obstacle detection. When the included angle distance measuring module 30 detects an obstacle, an alarm signal Echo is returned to an INT0/PA0 pin of the microprocessor U2, and if no obstacle exists, no signal is returned. The microprocessor U2 can perform corresponding alarm control according to the alarm signal Echo.
Referring to fig. 5, the included angle distance measuring module 30 includes an ultrasonic distance measuring chip U3 (the model is preferably SRF05, and particularly is HY-SRF05 ultrasonic module), a1 st pin of the ultrasonic distance measuring chip U3 is connected to the power supply terminal, a 2 nd pin of the ultrasonic distance measuring chip U3 is connected to an AD4/PA1 pin of the microprocessor U2, a3 rd pin of the ultrasonic distance measuring chip U3 is connected to an INT0/PA0 pin of the microprocessor U2, and a 5 th pin of the ultrasonic distance measuring chip U3 is grounded.
In order to avoid that the temperature difference between the obstacle and the environment is small and the induction is not obvious, an ultrasonic ranging chip U3 is added, and the ultrasonic ranging chip transmits a signal (ultrasonic wave) in a range which forms an included angle of 15 degrees with the vehicle body and is 5 meters long in real time to judge whether the obstacle exists or not, if the obstacle exists, the signal is returned to a reflection signal, and a corresponding alarm signal is output to the microprocessor U2 according to the reflection signal.
Referring to fig. 6, the power module 40 includes a voltage regulator chip (preferably HT7533) U4, a fourth capacitor C4, and a fifth capacitor C5; a Vin pin of the voltage stabilizing chip U4 is connected with an anode BAT + (+12V) of the vehicle battery and one end of a fourth capacitor C4, a GND pin of the voltage stabilizing chip U4 is grounded (a cathode BAT-of the vehicle battery is also grounded), a Vout pin of the voltage stabilizing chip U4 is connected with a power supply end and one end of a fifth capacitor C5, and the other end of the fourth capacitor C4 and the other end of the fifth capacitor C5 are both grounded; the pin Vout of the voltage regulator chip U4 is a power supply terminal, which is connected to and supplies power to the corresponding module.
The voltage stabilizing chip U4 converts the voltage of the vehicle battery into a 3.3V power supply voltage for supplying power. The fourth capacitor C4 and the fifth capacitor C5 function as a filter.
Referring to fig. 7, the bluetooth module 50 includes a bluetooth chip U5 (model is preferably CC2640) and a sixth capacitor C6, the VCC pin of the bluetooth chip U5 is connected to the power supply terminal and one end of the sixth capacitor C6, and the GND pin of the bluetooth chip U5 and the other end of the sixth capacitor C6 are both grounded; the pins P0.0, P0.2 and P0.3 of the Bluetooth chip U5 are connected with the pins PF1, PG4 and PG5 of the microprocessor U2 in a one-to-one manner. The capacitance value of the sixth capacitor C6 is 47uF, and the withstand voltage is 10V. An output enabling signal BT P0.0 of the microprocessor U2 controls the work of the Bluetooth module, the microprocessor U2 transmits all data needing to be transmitted to the mobile terminal to the Bluetooth chip U5 through a data transmitting signal UART _ TX, and the data is transmitted to the mobile terminal through a transmitting antenna arranged in the Bluetooth chip U5; all commands output from the mobile terminal are received by a receiving antenna built in the bluetooth chip U5, and are output from the data receiving signal UART _ RX to the microprocessor U2.
Referring to fig. 8, the left and right warning light modules include a left warning light D1, a right warning light D2, a first transistor Q1, a second transistor Q2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, and a sixth resistor R6; the positive pole of the left warning light D1 is connected with the positive pole of the vehicle storage battery through a third resistor R3, the negative pole of the left warning light D1 is connected with the collector of a first triode Q1, the base of the first triode Q1 is connected with a left warning control line (correspondingly connected with the PD7 pin of the microprocessor U2) through a fifth resistor R5, the emitter of the first triode Q1 is grounded, the positive pole of the right warning light D2 is connected with the positive pole of the vehicle storage battery through a fourth resistor R4, the negative pole of the right warning light D2 is connected with the collector of a second triode Q2, the base of the second triode Q2 is connected with a right warning control line (correspondingly connected with the PD6 pin of the microprocessor U2) through a sixth resistor R6, and the emitter of the second triode Q2 is grounded.
The first triode Q1 and the second triode Q2 are both NPN triodes, R3-R6 play a role in current limiting protection, D1 is a left warning lamp, D2 is a right warning lamp, when a left warning signal L W L-transmitted by the left warning control line is at a high level, Q1 is conducted, the negative electrode of D1 is pulled to form a loop, and D1 emits light, similarly, when a right warning signal RW L-transmitted by the right warning control line is at a high level, Q2 is conducted, the negative electrode of D2 is pulled to form a loop, and D2 emits light.
Referring to fig. 9, the buzzer module includes a buzzer BUZ, a third transistor Q3 and a seventh resistor R7; the positive pole of the buzzer BUZ is connected with the positive pole of a vehicle storage battery, the negative pole of the buzzer BUZ is connected with the collector of a third triode Q3, the base of the third triode Q3 is connected with a prompt line (correspondingly connected with a PB0 pin of a microprocessor U2) through a seventh resistor R7, and the emitter of the third triode Q3 is grounded.
The third transistor Q3 is an NPN transistor, and the R7 plays a role of current limiting protection. When the BUZZER signal BUZZER transmitted on the cue line is at high level, the Q3 is conducted, and the BUZZER BUZ forms a loop to the ground to make a sound. The BUZZER signal is a pulse signal whose duty cycle determines the magnitude of the sound of the BUZZER BUZ.
In summary, the temperature determination object prompting device and the vehicle-mounted system provided by the invention can detect obstacles on the left side and the right side of the vehicle through temperature and perform corresponding prompting, and ensure the accuracy of object determination on the left side and the right side of the vehicle by combining detection of dead angles (within a range of 15-degree included angle and 5 meters length with the vehicle body) at the same time.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A temperature judgment and object existence prompting device is connected with a vehicle storage battery, a left warning lamp module, a right warning lamp module, a buzzer module and a mobile terminal and is characterized by comprising a shell, wherein a circuit board is arranged in the shell, and a temperature sensing module, a control module, an included angle distance measuring module, a power supply module and a Bluetooth module are arranged on the circuit board;
the control module is connected with the temperature sensing module, the included angle distance measuring module and the Bluetooth module; the power supply module is connected with the temperature sensing module, the control module, the included angle distance measuring module and the Bluetooth module; the control module is externally connected with a buzzing module, the left and right warning lamp modules and the power supply module are externally connected with a vehicle storage battery, and the Bluetooth module is in communication connection with the mobile terminal;
the Bluetooth module receives a mode instruction output by the mobile terminal and transmits the mode instruction to the control module to set a prompt mode, and the temperature sensing module detects the temperature of each subarea in a first preset range on the left side and the right side of the vehicle and outputs corresponding temperature values; the included angle ranging module transmits signals in real time and detects whether reflected signals exist or not, and when the reflected signals are received, alarm signals are output to the control module; the control module calculates an average value according to the temperature values of all the zones, and outputs corresponding control signals to the left warning lamp module, the right warning lamp module and the buzzer module when judging that the temperature value of any zone is higher than the average value by a first threshold value or when receiving an alarm signal so as to prompt in a corresponding prompting mode; the power supply module converts the battery voltage of the vehicle into a power supply voltage to supply power; the control module also sends the temperature values of all the partitions to the mobile terminal through the Bluetooth module to be displayed.
2. The temperature judgment presence-of-object prompting device according to claim 1, wherein 7 signal lines are led out from the temperature judgment presence-of-object prompting device, and a first signal line is a ground line and is connected with a negative electrode of a vehicle battery; the second signal line is a power line and is connected with the anode of the vehicle storage battery; the third signal line is a left-turn detection line and is connected with the anode of the left-turn lamp or is pulled high; the fourth signal line is a right-turn detection line and is connected with the positive pole of the right-turn lamp or is pulled high; the fifth signal line is a left warning control line, and the sixth signal line is a right warning control line which are connected with the left warning lamp module and the right warning lamp module; the seventh signal line is a prompt line and is connected with the buzzing module.
3. The device for prompting the existence of a temperature judgment object according to claim 2, wherein the temperature sensing module comprises a matrix temperature sensing wafer, a first resistor and a second resistor; the 1 st pin of the matrix temperature sensing wafer is connected with the power supply end, one end of the first resistor and one end of the second resistor, the 2 nd pin of the matrix temperature sensing wafer is connected with the other end of the second resistor and the control module, the 3 rd pin of the matrix temperature sensing wafer is connected with the other end of the first resistor and the control module, the 4 th pin and the 5 th pin of the matrix temperature sensing wafer are both connected with the control module, and the 6 th pin of the matrix temperature sensing wafer is grounded.
4. The temperature judgment presence prompting device according to claim 3, wherein the control module comprises a microprocessor, a crystal oscillator, a first capacitor, a second capacitor and a third capacitor;
a PB6 pin of the microprocessor is connected with a left-turn detection line, a PB7 pin of the microprocessor is connected with a right-turn detection line, an AD4/PA1 pin and an INT0/PA0 pin of the microprocessor are both connected with an included angle ranging module, a VCC pin of the microprocessor is connected with a power supply end and one end of a first capacitor, a VSS pin of the microprocessor is connected with the other end of the first capacitor and the ground, an FXO/PA3 pin of the microprocessor is connected with one end of a second capacitor and one end of a crystal oscillator, an FXI/PA4 pin of the microprocessor is connected with one end of a third capacitor and the other end of the crystal oscillator, and the other end of the second capacitor is connected with the other end; the PG4 pin, the PG5 pin and the PF1 pin of the microprocessor are connected with a Bluetooth module; the PB1 pin, the PB2 pin, the PB3 pin and the PF4 pin of the microprocessor are in one-to-one connection with the 5 th pin, the 4 th pin, the 3 rd pin and the 4 th pin of the matrix temperature sensing chip; the PB0 foot of microprocessor is through the external buzzer module of warning line, and the PD7 foot of microprocessor is through the external warning lamp module about left warning control line is external, and the PD6 foot of microprocessor is through the external warning lamp module about right warning control line is external.
5. The device for prompting a presence of an object according to claim 4, wherein the included angle ranging module comprises an ultrasonic ranging chip, a1 st pin of the ultrasonic ranging chip is connected with the power supply terminal, a 2 nd pin of the ultrasonic ranging chip is connected with an AD4/PA1 pin of the microprocessor, a3 rd pin of the ultrasonic ranging chip is connected with an INT0/PA0 pin of the microprocessor, and a 5 th pin of the ultrasonic ranging chip is grounded.
6. The temperature judgment presence prompting device according to claim 5, wherein the power supply module comprises a voltage stabilizing chip, a fourth capacitor and a fifth capacitor; the Vin pin of the voltage stabilizing chip is connected with the positive electrode of the vehicle battery and one end of the fourth capacitor, the GND pin of the voltage stabilizing chip is grounded, the Vout pin of the voltage stabilizing chip is connected with the power supply end and one end of the fifth capacitor, and the other end of the fourth capacitor and the other end of the fifth capacitor 5 are both grounded.
7. The temperature judgment prompting device according to claim 6, wherein the Bluetooth module comprises a Bluetooth chip and a sixth capacitor, a VCC pin of the Bluetooth chip is connected with the power supply terminal and one end of the sixth capacitor, and the GND pin of the Bluetooth chip and the other end of the sixth capacitor are both grounded; the P0.0 pin, the P0.2 pin and the P0.3 pin of the Bluetooth chip are connected with the PF1 pin, the PG4 pin and the PG5 pin of the microprocessor in a one-to-one mode.
8. A vehicle-mounted system comprises a vehicle storage battery, a left warning lamp module, a right warning lamp module, a buzzer module and a mobile terminal, and is characterized by further comprising a temperature judgment object prompting device according to any one of claims 1-7, wherein the temperature judgment object prompting device is electrically connected with the vehicle storage battery, the left warning lamp module, the right warning lamp module and the buzzer module, and the temperature judgment object prompting device is in communication connection with the mobile terminal;
the mobile terminal outputs a mode instruction to set a prompting mode of the temperature judging object prompting device, the vehicle battery supplies power to the temperature judging object prompting device, the temperature judging object prompting device detects the temperature of the left side and the right side of the vehicle within a first preset range and transmits a signal within a second preset range, and object prompting is carried out according to the set prompting mode when the temperature is judged to meet a set condition or when a reflected signal is received.
9. The in-vehicle system of claim 8, wherein the left and right warning light modules comprise a left warning light, a right warning light, a first triode, a second triode, a third resistor, a fourth resistor, a fifth resistor, and a sixth resistor; the positive pole of left side warning light passes through the positive pole of third resistance connection vehicle storage battery, the collecting electrode of first triode is connected to the negative pole of left side warning light, the base of first triode passes through the left warning control line of fifth resistance connection, the projecting pole ground connection of first triode, the positive pole of right side warning light passes through the positive pole of fourth resistance connection vehicle storage battery, the collecting electrode of second triode is connected to the negative pole of right side warning light, the base of second triode passes through the right warning control line of sixth resistance connection, the projecting pole ground connection of second triode.
10. The in-vehicle system of claim 9, wherein the buzzer module comprises a buzzer, a third triode, and a seventh resistor; the positive pole of buzzer connects the positive pole of vehicle storage battery, and the negative pole of buzzer connects the collecting electrode of third triode, and the base of third triode passes through seventh resistance connection prompt line, and the projecting pole ground connection of third triode.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010240951.1A CN111458765A (en) | 2020-03-31 | 2020-03-31 | Temperature judgment object prompting device and vehicle-mounted system |
| PCT/CN2020/094496 WO2021196398A1 (en) | 2020-03-31 | 2020-06-05 | Temperature determination-based object existence prompting device, and vehicle-mounted system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010240951.1A CN111458765A (en) | 2020-03-31 | 2020-03-31 | Temperature judgment object prompting device and vehicle-mounted system |
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| CN202010240951.1A Pending CN111458765A (en) | 2020-03-31 | 2020-03-31 | Temperature judgment object prompting device and vehicle-mounted system |
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| WO (1) | WO2021196398A1 (en) |
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| CN114274779B (en) * | 2022-01-18 | 2023-09-19 | 成都汽车职业技术学校 | Device and method for collecting temperature information and controlling early warning of new energy electric vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS59128029A (en) * | 1983-01-11 | 1984-07-24 | Nippon Denso Co Ltd | Warning apparatus for backward object for vehicle |
| DE10222071A1 (en) * | 2002-05-17 | 2003-12-04 | Daimler Chrysler Ag | Warning indicator set-up method for a motor vehicle driver, uses temperature/heat distribution patterns, e.g. from exhaust gas from a vehicle in front to identify imminent dangers |
| US7095315B2 (en) * | 2004-02-26 | 2006-08-22 | Lemke Richard G | Collision avoidance system for snowmobiles |
| US7148482B2 (en) * | 2004-03-25 | 2006-12-12 | Delphi Technologies, Inc. | Multiple sensor thermal radiation detector and method |
| CN105691295A (en) * | 2016-03-04 | 2016-06-22 | 北方工业大学 | Vehicle-mounted blind area life early warning device based on infrared light |
| KR101996419B1 (en) * | 2016-12-30 | 2019-07-04 | 현대자동차주식회사 | Sensor integration based pedestrian detection and pedestrian collision prevention apparatus and method |
| CN108583434B (en) * | 2018-04-17 | 2020-05-15 | 北京车和家信息技术有限公司 | Driving assisting method, device and system |
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Effective date of registration: 20201130 Address after: 311, building A2, Baoshan Industrial Zone, Minzhi street, Longhua New District, Longhua District, Shenzhen City, Guangdong Province Applicant after: Shenzhen Ruihe hi tech Communication Electronics Co., Ltd Applicant after: Xiang Mingcheng Address before: 518000 building 101, 302, building B, innovation industrial park, 326 dabutou Road, songyuanxia community, Guanhu street, Longhua District, Shenzhen City, Guangdong Province Applicant before: SANJU ELECTRIC MACHINE (SHENZHEN) Co.,Ltd. Applicant before: SANJU TECHNOLOGY ELECTRIC MACHINE (SHENZHEN) Co.,Ltd. Applicant before: Xiang Mingcheng |