Temperature Control Solar Warning Signs

Abstract

The present invention discloses a temperature-controlled solar warning sign, comprising an interface module, a voltage adjustment module, a power supply voltage stabilizing module, a light control detection module, a control module, a two-way drive output sign, an online programming interface, an indicator light module, a key module, and a temperature detection module. The interface module is connected to the voltage adjustment module and the light control detection module. The control module is connected to the light control detection module, the two-way drive output sign, the online programming interface, the indicator light module, the key module, and the temperature detection module. The key module includes a mode button and a setting button. The indicator light module includes a temperature mode indicator light, a flashing mode indicator light, a brightness mode indicator light, a low-range indicator light, a mid-range indicator light, and a high-range indicator light. The present invention uses temperature control to attract the attention of pedestrians or drivers, especially at night, making it easier to observe the surrounding environment. Different luminosity and flashing modes are used according to different temperatures to improve safety.

Description

Technical Field

[0001] The invention relates to the field of signboards, and in particular to a temperature-controlled solar warning signboard. Background Art

[0002] Traffic signs are a common tool for conveying traffic regulations and road safety information. They are ubiquitous and ubiquitous around us, safeguarding our personal and property safety. They convey traffic regulations in a vivid, simple, and concrete manner, thereby managing traffic and directing vehicles to operate safely and correctly. They are suitable for general highways, provincial roads, and expressways. In rainy and snowy weather, when temperatures approach -2°C, roads can easily freeze over. At night, pedestrians and drivers may not be able to see the signs, posing a safety risk. Furthermore, traditional traffic signs lack temperature control, meaning they do not provide customized warnings based on the temperature. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a temperature-controlled solar warning sign that uses temperature control to attract the attention of pedestrians or drivers, especially at night, making it easier to observe the surrounding environment, and adopts different luminosity and flashing modes according to different temperatures to improve safety.

[0004] The technical solution adopted by the present invention to solve its technical problems is: constructing a temperature-controlled solar warning sign, including an interface module, a voltage adjustment module, a power supply voltage stabilizing module, a light control detection module, a control module, a two-way drive output sign, an online programming interface, an indicator light module, a key module and a temperature detection module, the interface module is respectively connected to the voltage adjustment module and the light control detection module, the power supply voltage stabilizing module is connected to the voltage adjustment module, the control module is respectively connected to the light control detection module, the two-way drive output sign, the online programming interface, the indicator light module, the key module and the temperature detection module, the key module includes a mode button and a setting button, and the indicator light module includes a temperature mode indicator light, a flashing mode indicator light, a brightness mode indicator light, a low-range indicator light, a mid-range indicator light and a high-range indicator light.

[0005] In the temperature-controlled solar warning sign described in the present invention, the control module includes a single-chip microcomputer, a first pin of the single-chip microcomputer is grounded through the mode button, a second pin of the single-chip microcomputer is grounded through the setting button, and the tenth pin, eleventh pin, twelfth pin, seventh pin, eighth pin and ninth pin of the single-chip microcomputer are respectively connected to the anode of the temperature mode indicator light, the anode of the flashing mode indicator light, the anode of the brightness mode indicator light, the anode of the low-range indicator light, the anode of the mid-range indicator light and the anode of the high-range indicator light, and the cathode of the temperature mode indicator light, the cathode of the flashing mode indicator light, the cathode of the brightness mode indicator light, the cathode of the low-range indicator light, the cathode of the mid-range indicator light and the cathode of the high-range indicator light are all connected.

[0006] In the temperature-controlled solar warning sign described in the present invention, the temperature detection module includes a fourth capacitor, an eighth resistor and a third interface, the third interface is connected to the NTC thermistor, the first pin of the third interface is respectively connected to one end of the eighth resistor, one end of the fourth capacitor and the thirteenth pin of the microcontroller, the other end of the eighth resistor is connected to a DC power supply, and the second pin of the third interface is connected to the other end of the fourth capacitor and is grounded.

[0007] In the temperature-controlled solar warning sign described in the present invention, the interface module includes a solar cell interface, a sign switch control interface, a lithium battery interface, a first sign positive electrode interface and a second sign positive electrode interface. The solar cell interface is connected to the solar cell, the sign switch control interface is connected to the sign switch, the lithium battery interface is connected to the lithium battery, the first sign positive electrode interface and the second sign positive electrode interface are both connected to the sign positive electrode, the first pin of the solar cell interface is connected to the first pin of the lithium battery interface, the first pin of the sign switch control interface is connected to the second pin of the lithium battery interface, and the second pin of the sign switch control interface is respectively connected to the first sign positive electrode interface and the second sign positive electrode interface.

[0008] In the temperature-controlled solar warning sign described in the present invention, the voltage adjustment module includes an adjustable three-terminal positive voltage regulator, a first capacitor, a first resistor, a second resistor, a third resistor, a diode and a first electrolytic capacitor. The third pin of the adjustable three-terminal positive voltage regulator is respectively connected to the second pin of the solar cell interface and one end of the first capacitor, the second pin of the adjustable three-terminal positive voltage regulator is connected to one end of the third resistor, the first pin of the adjustable three-terminal positive voltage regulator is respectively connected to one end of the first resistor and one end of the second resistor, the other end of the second resistor is respectively connected to the other end of the third resistor and the anode of the diode, the cathode of the diode is respectively connected to one end of the first electrolytic capacitor and the second pin of the lithium battery interface, and the other end of the first capacitor and the other end of the first electrolytic capacitor are both grounded.

[0009] In the temperature-controlled solar warning sign described in the present invention, the power supply voltage stabilization module includes a power supply chip, a second capacitor and a sixth capacitor. The first pin of the power supply chip is grounded, the second pin of the power supply chip is connected to one end of the first electrolytic capacitor, and the third pin of the power supply chip is respectively connected to one end of the sixth capacitor, one end of the second capacitor and a DC power supply. The other end of the sixth capacitor and the other end of the second capacitor are both grounded.

[0010] In the temperature-controlled solar warning sign described in the present invention, the light control detection module includes a fifth interface, a fifth capacitor, a fourth resistor, a fifth resistor, an eighth transistor and a sixth resistor. The second pin of the fifth interface is respectively connected to one end of the fifth capacitor, one end of the fourth resistor, one end of the fifth resistor and the base of the eighth transistor, the other end of the fourth resistor is connected to the second pin of the solar cell interface, the first pin of the fifth interface, the other end of the fifth capacitor, the other end of the fifth resistor and the emitter of the eighth transistor are all grounded, the collector of the eighth transistor is respectively connected to one end of the sixth resistor and the fourth pin of the single-chip computer, and the other end of the sixth resistor is connected to a DC power supply.

[0011] In the temperature-controlled solar warning sign described in the present invention, the two-way drive output sign includes a fifteenth resistor, a first transistor, a first interface, a sixteenth resistor, a second transistor and a second interface. The base of the first transistor is connected to the fifth pin of the single-chip microcomputer through the fifteenth resistor, the collector of the first transistor is connected to the first interface, the base of the second transistor is connected to the sixth pin of the single-chip microcomputer through the sixteenth resistor, the collector of the second transistor is connected to the second interface, and the emitter of the first transistor and the emitter of the second transistor are both grounded.

[0012] In the temperature-controlled solar warning sign of the present invention, the fourth pin and the fifth pin of the online programming interface are connected to the second pin and the third pin of the single-chip microcomputer respectively.

[0013] The temperature-controlled solar warning sign implemented in the present invention has the following beneficial effects: since it is provided with an interface module, a voltage adjustment module, a power supply voltage stabilization module, a light control detection module, a control module, a two-way drive output sign, an online programming interface, an indicator light module, a button module and a temperature detection module, the button module includes a mode button and a setting button, and the indicator light module includes a temperature mode indicator light, a flashing mode indicator light, a brightness mode indicator light, a low-range indicator light, a mid-range indicator light and a high-range indicator light. By detecting that the ambient temperature reaches a preset temperature, the flashing mode is turned on. The present invention uses temperature control to attract the attention of pedestrians or drivers, especially at night, and it is easy to observe the surrounding environment. Different luminosity and flashing modes are used according to different temperatures to improve safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic structural diagram of an embodiment of a temperature-controlled solar warning signboard according to the present invention;

[0016] Figure 2 1 is a circuit diagram of the temperature-controlled solar warning sign in the embodiment. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] In the embodiment of the temperature controlled solar warning sign of the present invention, the structural diagram of the temperature controlled solar warning sign is as follows: Figure 1 shown. Figure 2 This is the circuit diagram of the temperature controlled solar warning sign in this embodiment. Figure 1 and Figure 2As shown, the temperature-controlled solar warning sign includes an interface module 1, a voltage adjustment module 2, a power supply voltage stabilizing module 3, a light control detection module 4, a control module 5, a two-way drive output sign 6, an online programming interface J1, an indicator light module 8, a button module 9 and a temperature detection module 10, wherein the interface module 1 is connected to the voltage adjustment module 2 and the light control detection module 4 respectively, the power supply voltage stabilizing module 3 is connected to the voltage adjustment module 2, the control module 5 is connected to the light control detection module 4, the two-way drive output sign 6, the online programming interface J1, the indicator light module 8, the button module 9 and the temperature detection module 10 respectively, the button module 9 includes a mode button S1 and a setting button S2, and the indicator light module 8 includes a temperature mode indicator LED1, a flashing mode indicator LED2, a brightness mode indicator LED3, a low-range indicator LED4, a mid-range indicator LED5 and a high-range indicator LED6.

[0019] The temperature detection module 10 turns on the flashing mode by detecting that the ambient temperature reaches the preset temperature. There are three temperature detection points: -5, -2, and 0 degrees. The brightness can be adjusted to 50%, 75%, and 100%. The flashing mode is 30 times, 55 times, and 90 times per minute.

[0020] The operation of the temperature-controlled solar warning sign is as follows: the mode button S1 switches between temperature mode, brightness mode and flashing mode, and the temperature mode indicator LED1, the flashing mode indicator LED2, and the brightness mode indicator LED3 are turned on respectively; the setting button S2 corresponds to the three settings of each mode, namely low, medium and high, and there are low-range indicator LED4, medium-range indicator LED5 and high-range indicator LED6 corresponding to them respectively.

[0021] In temperature mode, the low range is -5, the medium range is -2, and the high range is 0 degrees; in brightness mode, the low range is 50%, the medium range is 75%, and the high range is 100%; in flashing mode, the low range is 30 times, the medium range is 55 times, and the high range is 90 times per second.

[0022] Each keystroke activates the signage indicator and corresponding mode indicator, making it easy for users to set up and test the system. Stopping keystrokes delays the system for 30 seconds, turning off the indicator and entering standby mode. The system also monitors the ambient temperature in real time. By detecting when the ambient temperature reaches a preset value, the flashing mode is activated. This temperature-controlled system attracts the attention of pedestrians and drivers, especially at night, making it easier to observe the surrounding environment. Different luminance levels and flashing modes are used depending on the temperature, enhancing safety.

[0023] In this embodiment, the control module 5 includes a single-chip microcomputer U3, a first pin of the single-chip microcomputer U3 is grounded through the mode button S1, a second pin of the single-chip microcomputer U3 is grounded through the setting button S2, the tenth pin, eleventh pin, twelfth pin, seventh pin, eighth pin and ninth pin of the single-chip microcomputer U3 are respectively connected to the anode of the temperature mode indicator LED1, the anode of the flashing mode indicator LED2, the anode of the brightness mode indicator LED3, the anode of the low-range indicator LED4, the anode of the mid-range indicator LED5 and the anode of the high-range indicator LED6, and the cathode of the temperature mode indicator LED1, the cathode of the flashing mode indicator LED2, the cathode of the brightness mode indicator LED3, the cathode of the low-range indicator LED4, the cathode of the mid-range indicator LED5 and the cathode of the high-range indicator LED6 are all connected.

[0024] In this embodiment, microcontroller U3 is a PIC16F684 microcontroller with ADC, PWM, and EEPROM functions. This microcontroller U3 uses a high-interference microprocessor, operates in an ambient temperature range of -40°C to 80°C, and has built-in memory to save settings during power failures. In practical applications, microcontroller U3 may also utilize other microprocessors with similar functionality.

[0025] In this embodiment, the temperature detection module 10 includes a fourth capacitor C4, an eighth resistor R8, and a third interface J3. The third interface J3 is connected to an NTC thermistor. The first pin of the third interface J3 is respectively connected to one end of the eighth resistor R8, one end of the fourth capacitor C4, and the thirteenth pin of the single-chip microcomputer U3. The other end of the eighth resistor R8 is connected to a DC power supply VCC. The second pin of the third interface J3 is connected to the other end of the fourth capacitor C4 and grounded. The NTC resistance changes with temperature. When the change reaches a preset value through the AD port (i.e., the thirteenth pin) of the single-chip microcomputer U3, the flashing mode is activated and the brightness is controlled by PWM.

[0026] In this embodiment, the interface module 1 includes a solar cell interface SB, a sign switch control interface SW, a lithium battery interface BT, a first sign positive electrode interface J001, and a second sign positive electrode interface J002. The solar cell interface SB is connected to the solar cell, the sign switch control interface SW is connected to the sign switch, the lithium battery interface BT is connected to the lithium battery, the first sign positive electrode interface J001 and the second sign positive electrode interface J002 are both connected to the sign positive electrode, the first pin of the solar cell interface SB is connected to the first pin of the lithium battery interface BT, the first pin of the sign switch control interface SW is connected to the second pin of the lithium battery interface BT, and the second pin of the sign switch control interface SW is respectively connected to the first sign positive electrode interface J001 and the second sign positive electrode interface J002. The sign switch control interface SW is used to control the sign switch.

[0027] In this embodiment, the voltage adjustment module 2 includes an adjustable three-terminal positive voltage regulator U1, a first capacitor C1, a first resistor R1, a second resistor R2, a third resistor R3, a diode SMA and a first electrolytic capacitor E1. The third pin of the adjustable three-terminal positive voltage regulator U1 is respectively connected to the second pin of the solar cell interface SB and one end of the first capacitor C1, the second pin of the adjustable three-terminal positive voltage regulator U1 is connected to one end of the third resistor R3, the first pin of the adjustable three-terminal positive voltage regulator U1 is respectively connected to one end of the first resistor R1 and one end of the second resistor R2, the other end of the second resistor R2 is respectively connected to the other end of the third resistor R3 and the anode of the diode SMA, the cathode of the diode SMA is respectively connected to one end of the first electrolytic capacitor E1 and the second pin of the lithium battery interface BT, and the other end of the first capacitor C1 and the other end of the first electrolytic capacitor E1 are both grounded.

[0028] In this embodiment, the model of the adjustable three-terminal positive voltage regulator U1 is LM317, which can adjust the output stable voltage for charging the battery. Of course, in actual applications, the adjustable three-terminal positive voltage regulator U1 can also use other models of chips with similar functions.

[0029] In this embodiment, the power supply voltage stabilization module 3 includes a power supply chip U2, a second capacitor C2 and a sixth capacitor C6, wherein the first pin of the power supply chip U2 is grounded, the second pin of the power supply chip U2 is connected to one end of the first electrolytic capacitor E1, and the third pin of the power supply chip U2 is respectively connected to one end of the sixth capacitor C6, one end of the second capacitor C2 and the DC power supply VCC, and the other end of the sixth capacitor C6 and the other end of the second capacitor C2 are both grounded.

[0030] In this embodiment, the power chip U2 is a 7550 model, which is used to stabilize the power supply voltage of the single-chip microcomputer U3 to 5 V. In actual applications, the power chip U2 can be another model with similar functions.

[0031] In this embodiment, the light-controlled detection module 4 includes a fifth interface J5, a fifth capacitor C5, a fourth resistor R4, a fifth resistor R5, an eighth transistor Q8, and a sixth resistor R6. The second pin of the fifth interface J5 is respectively connected to one end of the fifth capacitor C5, one end of the fourth resistor R4, one end of the fifth resistor R5, and the base of the eighth transistor Q8. The other end of the fourth resistor R4 is connected to the second pin of the solar cell interface SB. The first pin of the fifth interface J5, the other end of the fifth capacitor C5, the other end of the fifth resistor R5, and the emitter of the eighth transistor Q8 are all grounded. The collector of the eighth transistor Q8 is respectively connected to one end of the sixth resistor R6 and the fourth pin of the single-chip computer U3. The other end of the sixth resistor R6 is connected to the DC power supply VCC. The eighth transistor Q8 is controlled to be on or off by the voltage divider resistors, such as the fourth resistor R4 and the fifth resistor R5, to detect the light-controlled function.

[0032] In this embodiment, the two-way drive output sign 6 includes a fifteenth resistor R15, a first transistor Q1, a first interface CON1, a sixteenth resistor R16, a second transistor Q2, and a second interface CON2. The base of the first transistor Q1 is connected to the fifth pin of the single-chip microcomputer U3 via the fifteenth resistor R15, the collector of the first transistor Q1 is connected to the first interface CON1, the base of the second transistor Q2 is connected to the sixth pin of the single-chip microcomputer U3 via the sixteenth resistor R16, the collector of the second transistor Q2 is connected to the second interface CON2, and the emitters of the first transistor Q1 and the second transistor Q2 are both grounded. The fifteenth resistor R15, the first transistor Q1, and the first interface CON1 constitute one drive output sign, and the sixteenth resistor R16, the second transistor Q2, and the second interface CON2 constitute the other drive output sign.

[0033] In this embodiment, the fourth pin and the fifth pin of the online programming interface J1 are connected to the second pin and the third pin of the microcontroller U3 respectively.

[0034] This temperature-controlled solar warning sign is easy to install and can be mounted on a fixed column, wall, or guardrail. The LED brightness can be adjusted to suit the customer's needs. It is not restricted by region, requires no power connection, is self-charging, and is maintenance-free. It can be customized to suit different countries and regions.

[0035] In summary, in this embodiment, the flashing mode is turned on by detecting that the ambient temperature reaches the preset temperature. There are three temperature detection points: -5, -2, and 0 degrees. The brightness can be adjusted to 50%, 75%, and 100%. The flashing mode has a flashing frequency of 30, 55, and 90 times per minute.

[0036] This temperature-controlled solar warning sign utilizes temperature-controlled chip technology, creating a new type of warning sign. It combines internationally standardized reflective film with ultra-bright blue LED lights. In rainy or snowy weather, when the temperature approaches -2°C, indicating that the road could freeze at any time, the sign begins to flash blue, reminding passersby and drivers to drive slowly and carefully. This temperature-controlled sign attracts the attention of pedestrians and drivers, especially at night, making it easier to observe the surrounding environment. It uses different luminosity and flashing patterns depending on the temperature, enhancing safety.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A temperature-controlled solar warning sign, characterized in that: It includes an interface module, a voltage adjustment module, a power supply voltage stabilization module, a light control detection module, a control module, a two-way drive output sign, an online programming interface, an indicator light module, a button module and a temperature detection module. The interface module is respectively connected to the voltage adjustment module and the light control detection module, the power supply voltage stabilization module is connected to the voltage adjustment module, the control module is respectively connected to the light control detection module, the two-way drive output sign, the online programming interface, the indicator light module, the button module and the temperature detection module. The button module includes a mode button and a setting button. The indicator light module includes a temperature mode indicator light, a flashing mode indicator light, a brightness mode indicator light, a low-range indicator light, a mid-range indicator light and a high-range indicator light. The temperature detection module turns on the flashing mode by detecting that the ambient temperature reaches a preset temperature. There are three temperature detection points: -5, -2 and 0 degrees. The control module includes a single-chip microcomputer, a first pin of the single-chip microcomputer is grounded via the mode button, a second pin of the single-chip microcomputer is grounded via the setting button, a tenth pin, an eleventh pin, a twelfth pin, a seventh pin, an eighth pin, and a ninth pin of the single-chip microcomputer are respectively connected to the anode of the temperature mode indicator light, the anode of the flashing mode indicator light, the anode of the brightness mode indicator light, the anode of the low-range indicator light, the anode of the mid-range indicator light, and the anode of the high-range indicator light, and the cathode of the temperature mode indicator light, the cathode of the flashing mode indicator light, the cathode of the brightness mode indicator light, the cathode of the low-range indicator light, the cathode of the mid-range indicator light, and the cathode of the high-range indicator light are all connected; The temperature detection module includes a fourth capacitor, an eighth resistor and a third interface, the third interface is connected to the NTC temperature-sensitive resistor, the first pin of the third interface is respectively connected to one end of the eighth resistor, one end of the fourth capacitor and the thirteenth pin of the single-chip computer, the other end of the eighth resistor is connected to a DC power supply, and the second pin of the third interface is connected to the other end of the fourth capacitor and grounded; The two-way drive output sign includes a fifteenth resistor, a first transistor, a first interface, a sixteenth resistor, a second transistor and a second interface. The base of the first transistor is connected to the fifth pin of the single-chip microcomputer through the fifteenth resistor, the collector of the first transistor is connected to the first interface, the base of the second transistor is connected to the sixth pin of the single-chip microcomputer through the sixteenth resistor, the collector of the second transistor is connected to the second interface, and the emitter of the first transistor and the emitter of the second transistor are both grounded.

2. The temperature controlled solar warning sign according to claim 1, characterized in that: The interface module includes a solar cell interface, a signboard switch control interface, a lithium battery interface, a first signboard positive electrode interface and a second signboard positive electrode interface. The solar cell interface is connected to the solar cell, the signboard switch control interface is connected to the signboard switch, the lithium battery interface is connected to the lithium battery, the first signboard positive electrode interface and the second signboard positive electrode interface are both connected to the signboard positive electrode, the first pin of the solar cell interface is connected to the first pin of the lithium battery interface, the first pin of the signboard switch control interface is connected to the second pin of the lithium battery interface, and the second pin of the signboard switch control interface is respectively connected to the first signboard positive electrode interface and the second signboard positive electrode interface.

3. The temperature controlled solar warning sign according to claim 2, characterized in that: The voltage adjustment module includes an adjustable three-terminal positive voltage regulator, a first capacitor, a first resistor, a second resistor, a third resistor, a diode and a first electrolytic capacitor. The third pin of the adjustable three-terminal positive voltage regulator is respectively connected to the second pin of the solar cell interface and one end of the first capacitor, the second pin of the adjustable three-terminal positive voltage regulator is connected to one end of the third resistor, the first pin of the adjustable three-terminal positive voltage regulator is respectively connected to one end of the first resistor and one end of the second resistor, the other end of the second resistor is respectively connected to the other end of the third resistor and the anode of the diode, the cathode of the diode is respectively connected to one end of the first electrolytic capacitor and the second pin of the lithium battery interface, and the other end of the first capacitor and the other end of the first electrolytic capacitor are both grounded.

4. The temperature controlled solar warning sign according to claim 3, characterized in that: The power supply voltage stabilization module includes a power supply chip, a second capacitor and a sixth capacitor. The first pin of the power supply chip is grounded, the second pin of the power supply chip is connected to one end of the first electrolytic capacitor, the third pin of the power supply chip is respectively connected to one end of the sixth capacitor, one end of the second capacitor and a DC power supply, and the other end of the sixth capacitor and the other end of the second capacitor are both grounded.

5. The temperature controlled solar warning sign according to claim 2, characterized in that: The light control detection module includes a fifth interface, a fifth capacitor, a fourth resistor, a fifth resistor, an eighth transistor and a sixth resistor. The second pin of the fifth interface is respectively connected to one end of the fifth capacitor, one end of the fourth resistor, one end of the fifth resistor and the base of the eighth transistor. The other end of the fourth resistor is connected to the second pin of the solar cell interface. The first pin of the fifth interface, the other end of the fifth capacitor, the other end of the fifth resistor and the emitter of the eighth transistor are all grounded. The collector of the eighth transistor is respectively connected to one end of the sixth resistor and the fourth pin of the single-chip computer. The other end of the sixth resistor is connected to a DC power supply.

6. The temperature controlled solar warning sign according to claim 1, characterized in that: The fourth pin and the fifth pin of the online programming interface are connected to the second pin and the third pin of the single chip microcomputer respectively.

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