Temperature control system and control method for outdoor camera shield

Abstract

The embodiment of the invention discloses a temperature control system and method for an outdoor camera shield. The system comprises a temperature sensor module which is used for detecting the internal temperature and the external temperature of an outdoor camera shield; the intelligent control module is used for generating a control instruction according to the internal temperature and the external temperature; and the heating module is used for starting heating and stopping heating a glass window of the outdoor camera shield according to the control instruction. Compared with the prior art, the embodiment of the invention has the following advantages: (1) the problem that a camera image is shielded due to the fact that low-temperature ice and snow cover a shield glass window is solved; (2) temperature heating and stopping are intelligently controlled, it is effectively guaranteed that electronic elements in the protective cover cannot be damaged due to long-term overheating, and the equipment has high reliability; temperature heating and stopping are intelligently controlled, the camera can work for a long time without being restricted by the environment, manual operation is not needed, and the device is endowed with pertinence.

Description

Technical Field

[0001] The invention relates to the technical field of temperature control, and in particular to a temperature control system and a control method for an outdoor camera shield. Background Art

[0002] In recent years, with the continuous development of the civil aviation transportation industry and the continuous innovation and development of civil aviation technology, the aviation field has shown an unprecedented development situation. Due to its own limitations and the expansion and reconstruction of airports, the blind spots of traditional visual means are increasing and can no longer meet the needs of tower control. Therefore, the control means adopt a new monitoring technology-remote tower optical system. This system is based on remote monitoring information to replace on-site visual observation, so as to provide airport control or apron control services for airports with harsh natural environment, poor visibility conditions and difficult manned operation. The optical sensor cover responsible for front-end acquisition works in ice and snow weather environments in some parts of my country. It is necessary to ensure that the camera can work normally at -5℃ to 45℃, and at the same time, it is necessary to ensure that the glass window of the protective cover will not be covered by ice and snow.

[0003] There are two disadvantages in the prior art:

[0004] (1) Insufficient heating

[0005] Since the working environment temperature of the camera is -5℃ to 45℃, and the night temperature in some places in the three northern regions of my country can reach -20℃ to -40℃. In the known technology, the heater installed in the protective cover is a heat sink installed on a bracket, wrapped with several layers of resistance wire separated by mica, and connected to a temperature controller connected to a power supply through the wire on the electrode connector. The disadvantages of this heater are large size and complex structure; in particular, it is easy to short-circuit, causing the automatic control unit to burn out. Traditional protective covers cannot effectively remove ice and snow, and are easily covered by ice and snow.

[0006] (2) Insufficient intelligence

[0007] Due to the size of the existing camera housing, fans and heating modules are simply configured at the rear end, far away from the lens end, and can only be controlled by human intervention, which leads to insufficient intelligence and inability to timely handle the problem of the camera not working properly due to the ambient temperature according to the changes in the external ambient temperature. At the same time, the heating cannot be automatically turned off according to the heating situation, resulting in excessive heating and damage to electrical components. In addition, the conventional camera housing wiper motor is not intelligent enough, especially in the low temperature environment in the north, snow accumulation causes the entire housing glass window to be completely covered with ice and snow, and the wiper loses its function. Summary of the invention

[0008] The purpose of the embodiments of the present invention is to provide a temperature control system and a control method for an outdoor camera cover, so as to solve the problem that the camera image is blocked due to low-temperature ice and snow covering the cover glass window.

[0009] To achieve the above objectives, in a first aspect, an embodiment of the present invention provides a temperature control system for an outdoor camera housing, comprising:

[0010] Temperature sensor module for detecting the internal and external temperatures of the outdoor camera housing;

[0011] An intelligent control module, used for generating control instructions according to the internal temperature and the external temperature;

[0012] The heating module is used to start heating and stop heating the glass window of the outdoor camera cover according to the control instruction.

[0013] As a specific implementation of the present application, the heating module includes a field effect tube and a heating resistor, the field effect tube is used to receive the control instruction to achieve heating control, and the heating resistor is used to heat the glass lens of the outdoor camera cover.

[0014] Furthermore, as a preferred implementation of the present application, the intelligent control module is also used to control a wiper motor so that the wiper motor controls the shield wiper to start or stop.

[0015] In a second aspect, an embodiment of the present invention further provides a temperature control method for an outdoor camera housing, comprising:

[0016] Collecting the current ambient temperature through the temperature sensor module, wherein the current ambient temperature includes the internal temperature and the external temperature of the outdoor camera cover;

[0017] Generate a control instruction according to a set temperature threshold and the current ambient temperature through an intelligent control module;

[0018] The outdoor camera cover is heated and controlled according to the control instruction.

[0019] As a specific implementation of the present application, the temperature threshold includes an internal temperature threshold and an external temperature threshold, and the intelligent control module generates a control instruction according to the set temperature threshold and the current ambient temperature:

[0020] When the internal temperature is lower than an internal temperature threshold and the external temperature is lower than an external temperature threshold, generating a heating control instruction;

[0021] When the internal temperature is higher than an internal temperature threshold or the external temperature is higher than an external temperature threshold, a control instruction to stop heating is generated.

[0022] The temperature control system and method for an outdoor camera cover provided in the embodiment of the present invention are implemented. A micro heating module and a temperature sensor are installed near the cover glass through an intelligent control unit. The temperature sensor detects the internal temperature of the camera cover and the external ambient temperature. The intelligent control unit automatically controls the heating and stopping of the heating module, thereby solving the problem of the camera image being blocked due to low-temperature ice and snow covering the cover glass window. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation of the present invention or the technical solution in the prior art, the drawings required for use in the specific implementation or the description of the prior art are briefly introduced below.

[0024] Figure 1 is a structural diagram of a temperature control system for an outdoor camera shield provided by an embodiment of the present invention;

[0025] Figure 2 yes Figure 1 The working principle diagram of the temperature sensor module, intelligent control module and heating module;

[0026] Figure 3 The figure is a flow chart of a temperature control method for an outdoor camera cover provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0029] The inventive concept of the present invention is to provide a temperature control solution for an outdoor camera cover. The technical solution includes a system and a method. Among them, the system uses an STC89C58RD+ single-chip microcomputer as a central control device. According to the design idea of ​​circuit modularization, the design is divided into several parts such as a temperature sensor module, a power module, an intelligent control module, and a heating module. The temperature sensor module feeds back the collected internal and external temperatures of the cover to the intelligent control module, and then intelligently controls the heating module to start and stop heating the glass window of the cover according to the intelligent control algorithm.

[0030] Please refer to Figure 1 and Figure 2 The temperature control system for an outdoor camera cover provided by an embodiment of the present invention comprises:

[0031] The temperature sensor module is used to detect the internal temperature and external temperature of the outdoor camera cover; in this embodiment, the temperature sensor module adopts a DS18B20 temperature sensor;

[0032] An intelligent control module, used for generating control instructions according to the internal temperature and the external temperature;

[0033] A heating module, used for starting and stopping heating the glass window of the outdoor camera cover according to the control instruction;

[0034] A customized power supply module is used to supply power to the temperature sensor module, the intelligent control module and the heating module.

[0035] In this embodiment, the intelligent control module uses a STC89C58RD+ single chip microcomputer; the heating module includes a field effect tube and a heating resistor, the field effect tube is used to receive the control instruction to achieve heating control, and the heating resistor is used to heat the glass lens of the outdoor camera cover. Among them, the behavior of the field effect tube is IRF250, which can withstand the flow of large voltage (current).

[0036] Furthermore, the intelligent control module is also used to control the wiper motor so that the wiper motor controls the shield wiper to start or stop.

[0037] Based on the same invention concept, please refer to Figure 2 The embodiment of the present invention further provides a temperature control method for an outdoor camera cover, comprising:

[0038] Collecting the current ambient temperature through the temperature sensor module, wherein the current ambient temperature includes the internal temperature and the external temperature of the outdoor camera cover;

[0039] Generate a control instruction according to a set temperature threshold and the current ambient temperature through an intelligent control module;

[0040] The outdoor camera cover is heated and controlled according to the control instruction.

[0041] The temperature threshold includes an internal temperature threshold and an external temperature threshold (for example, -5°C or 45°C). The intelligent control module generates a control instruction according to the set temperature threshold and the current ambient temperature:

[0042] When the internal temperature is lower than an internal temperature threshold and the external temperature is lower than an external temperature threshold, generating a heating control instruction;

[0043] When the internal temperature is higher than an internal temperature threshold or the external temperature is higher than an external temperature threshold, a control instruction to stop heating is generated.

[0044] From the above description, it can be learned that the temperature control system and method for an outdoor camera cover provided in the embodiment of the present invention are implemented. Through the intelligent control unit, a micro heating module and a temperature sensor are installed near the cover glass. The temperature sensor detects the internal temperature of the camera cover and the external ambient temperature. The intelligent control unit automatically controls the heating and stopping of the heating module, thereby solving the problem of the camera image being blocked due to low-temperature ice and snow covering the cover glass window.

[0045] In addition, the embodiments of the present invention have the following advantages:

[0046] 1. Intelligent control of temperature heating and stopping effectively ensures that the electronic components in the shield will not be damaged due to long-term overheating, making the equipment highly reliable;

[0047] 2. Intelligent control of temperature heating and stopping allows the camera to work for a long time without being restricted by the environment and without manual operation, making the equipment safe.

[0048] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A temperature control system for an outdoor camera housing, characterized in that: include: Temperature sensor module for detecting the internal and external temperatures of the outdoor camera housing; An intelligent control module, used for generating control instructions according to the internal temperature and the external temperature; The heating module is used to start heating and stop heating the glass window of the outdoor camera cover according to the control instruction.

2. The temperature control system according to claim 1, characterized in that: The intelligent control module adopts STC89C58RD+ single chip microcomputer.

3. The temperature control system according to claim 1, characterized in that: The heating module includes a field effect tube and a heating resistor. The field effect tube is used to receive the control instruction to realize heating control, and the heating resistor is used to heat the glass lens of the outdoor camera cover.

4. The temperature control system according to claim 1, characterized in that: The intelligent control module is also used to control the wiper motor so that the wiper motor controls the shield wiper to start or stop.

5. The temperature control system according to any one of claims 1 to 4, characterized in that: The temperature control system also includes a customized power supply module for supplying power to the temperature sensor module, the intelligent control module and the heating module.

6. A temperature control method for an outdoor camera housing, characterized in that: include: Collecting the current ambient temperature through the temperature sensor module, wherein the current ambient temperature includes the internal temperature and the external temperature of the outdoor camera cover; Generate a control instruction according to a set temperature threshold and the current ambient temperature through an intelligent control module; The outdoor camera cover is heated and controlled according to the control instruction.

7. The temperature control method according to claim 6, characterized in that: The temperature threshold includes an internal temperature threshold and an external temperature threshold. The intelligent control module generates a control instruction according to the set temperature threshold and the current ambient temperature: When the internal temperature is lower than an internal temperature threshold and the external temperature is lower than an external temperature threshold, generating a heating control instruction; When the internal temperature is higher than an internal temperature threshold or the external temperature is higher than an external temperature threshold, a control instruction to stop heating is generated.

8. The temperature control method according to claim 7, characterized in that: The intelligent control module adopts STC89C58RD+ single chip microcomputer.

9. The temperature control method according to claim 7, characterized in that: A heating module is used to heat the glass lens of the outdoor camera shield; the heating module includes a field effect tube and a heating resistor.

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