Binocular camera heating element temperature control system and optical positioning instrument

Abstract

The invention discloses a binocular camera heating element temperature control system and an optical positioning instrument, and the system comprises a temperature sensor which is connected with a control end and is used for uploading the obtained real-time temperature of a binocular camera heating element to the control end; the control end is used for determining a modulation signal based on the real-time temperature and a preset target temperature; the temperature control circuit is connected with the control end and used for providing working current for the electric cooling sheet based on the modulation signal; and the electric cooling sheet is connected with the temperature control circuit, the temperature control surface of the electric cooling sheet is attached to the binocular camera heating element at the corresponding position of the PCB, and the electric cooling sheet is used for performing temperature control adjustment on the binocular camera heating element based on the working current. Through the technical scheme, the purpose of performing real-time temperature control on the heating element of the binocular camera can be achieved, the positioning result of the optical positioning instrument is prevented from being influenced by heating of the heating element of the binocular camera, and the positioning precision and the positioning effect of the optical positioning instrument are ensured.

Description

Technical Field

[0001] The present application belongs to the technical field of binocular camera positioning accuracy adjustment, and specifically relates to a binocular camera heating element temperature control system. Background Art

[0002] As the scope of use of optical locators continues to increase, people have put forward higher requirements for the positioning accuracy of optical locators. The positioning accuracy of optical locators is greatly affected by the heat generated by its internal components, especially the components in the binocular camera of the optical locator will continue to generate heat as the working time increases during the positioning process. If the heating components of the binocular camera cannot be cooled in time, it will seriously affect the positioning accuracy and positioning effect of the optical locator.

[0003] In the prior art, the heat generated by the binocular camera heating element is usually dissipated by pasting heat dissipation materials to the surface of the binocular camera heating element or installing a heat dissipation fan around the binocular camera heating element to ensure the positioning accuracy of the optical locator. However, the heat dissipation efficiency of the heat dissipation material is low and the heat dissipation effect is poor. It is unable to take away the heat generated by the element in time, resulting in the problem that the positioning result of the optical locator is not accurate enough. At the same time, the heat dissipation fan will generate vibration and noise during operation, causing the internal components of the optical locator to vibrate with the operation of the fan, and thus unable to position normally, affecting the positioning result. Summary of the invention

[0004] The purpose of the embodiment of the present application is to provide a binocular camera heating element temperature control system, which solves the problems of inaccurate positioning results and poor positioning effects when the existing technology is used to perform temperature control on the binocular camera heating element. The control end determines the modulation signal based on the real-time temperature and the preset target temperature, and the electric cooling plate adjusts the temperature of the binocular camera heating element based on the working current. The purpose of real-time temperature control of the binocular camera heating element can be achieved, avoiding the heating of the binocular camera heating element affecting the positioning result of the optical locator, thereby ensuring the positioning accuracy and positioning effect of the optical locator.

[0005] In a first aspect, an embodiment of the present application provides a binocular camera heating element temperature control system, the system comprising: a temperature sensor, a control terminal, a temperature control circuit and an electric cooling sheet, wherein:

[0006] The temperature sensor is connected to the control end and is used to upload the acquired real-time temperature of the heating element of the binocular camera to the control end;

[0007] A control terminal, used for determining a modulation signal based on the real-time temperature and a preset target temperature;

[0008] A temperature control circuit is connected to the control terminal and is used to provide a working current to the electric cooling plate based on a modulation signal;

[0009] The electric cooling sheet is connected to the temperature control circuit, and the temperature control surface is fitted with the corresponding position of the binocular camera heating element on the PCB board, so as to perform temperature control and adjustment on the binocular camera heating element based on the working current.

[0010] Optionally, the binocular camera heating element includes two lens main chips arranged on the rear side of the binocular camera lens;

[0011] The number of the electric cooling plates is at least two, and they are arranged in parallel on the rear sides of the two lens main chips.

[0012] Optionally, the modulation signal includes a pulse width modulation signal or a constant current modulation signal;

[0013] The control end is used for:

[0014] Calculate the temperature difference of the heating element of the binocular camera at the current moment based on the real-time temperature and the preset target temperature;

[0015] Determining a duty cycle of a pulse width modulation signal based on the temperature difference and a preset first conversion algorithm;

[0016] or,

[0017] The output current of the constant current modulation signal is determined based on the temperature difference and a preset second conversion algorithm.

[0018] Optionally, the temperature control surface and the PCB board are bonded based on thermal grease or thermal conductive silicone;

[0019] The control terminal is also used for:

[0020] Get the bonding area of ​​the temperature control surface on the PCB board. The bonding area is the actual contact area between the temperature control surface and the thermal grease or thermal silica gel.

[0021] Adjusting the calculation parameters in the preset first conversion algorithm based on the fitting area;

[0022] or,

[0023] Adjusting the calculation parameters in the preset second conversion algorithm based on the fitting area;

[0024] Calculate the temperature difference of the heating element of the binocular camera at the current moment based on the real-time temperature and the preset target temperature;

[0025] Determining a duty cycle of the pulse width modulation signal based on the temperature difference and the adjusted preset first conversion algorithm;

[0026] or,

[0027] The output current of the constant current modulation signal is determined based on the temperature difference and the adjusted preset second conversion algorithm.

[0028] Optionally, the operating current includes: current direction and current magnitude;

[0029] Electric cooling sheet, specifically used for:

[0030] The heating element of the binocular camera is heated or cooled based on the current direction and current magnitude.

[0031] Optional, control end, specifically used for:

[0032] Determine a total modulation signal of a temperature control circuit based on the real-time temperature and a preset target temperature;

[0033] The specifications of the electric cooling sheets are obtained, and the modulation signal of the temperature control circuit for each electric cooling sheet is determined based on the total modulation signal, the specifications and the quantity of the electric cooling sheets.

[0034] Optionally, the system further includes: a heat sink or an air-cooled radiator;

[0035] A heat sink is attached to the heat dissipation surface of the electric cooling plate and is used to dissipate the working heat generated by the electric cooling plate; or

[0036] The air-cooled radiator is spaced apart from the heat dissipation surface of the electric cooling plate and is used for dissipating the working heat generated by the electric cooling plate.

[0037] In a second aspect, an embodiment of the present application provides an optical locator, which includes: a binocular camera lens, a PCB board, and a binocular camera heating element temperature control system as described in any one of the first aspects.

[0038] Optionally, optical locators are also used to:

[0039] Determine the configurable form of the heat sink of the electric cooling sheet based on the internal space information and the position of the electric cooling sheet;

[0040] The power of the electric cooling sheet is obtained, and the final setting form of the electric cooling sheet radiator is determined based on the power and the configurable forms of the radiator.

[0041] Optionally, the optical locator further includes: a heat dissipation hole;

[0042] Optical locators are also used for:

[0043] Determine the setting position, shape information and size information of the radiator based on the final setting form;

[0044] Determine a heat dissipation path of the radiator based on the internal space information, the setting position of the radiator and the spatial position relationship between the heat dissipation holes;

[0045] A final heat dissipation path of the heat sink is determined based on the heat dissipation path, shape information and size information of the heat sink.

[0046] Optionally, the optical locator further includes: an electric cooling plate anti-condensation component;

[0047] The electric cooling plate anti-condensation component includes a waterproof coating and / or a waterproof protective cover.

[0048] In a third aspect, an embodiment of the present application provides an electronic device, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the system described in the first aspect.

[0049] In a fourth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the system described in the first aspect are implemented.

[0050] In the fifth aspect, an embodiment of the present application also provides a computer program product, which includes a computer program stored in a computer-readable storage medium, and at least one processor of the device reads and executes the computer program from the computer-readable storage medium, so that the device executes the system described in the first aspect.

[0051] In an embodiment of the present application, a temperature sensor is connected to a control terminal, and is used to upload the acquired real-time temperature of the binocular camera heating element to the control terminal; the control terminal is used to determine a modulation signal based on the real-time temperature and a preset target temperature; a temperature control circuit is connected to the control terminal, and is used to provide a working current to the electric cooling plate based on the modulation signal; the electric cooling plate is connected to the temperature control circuit, and the temperature control surface is fitted with the corresponding position of the binocular camera heating element on the PCB board, and is used to perform temperature control and adjustment on the binocular camera heating element based on the working current. Through the above binocular camera heating element temperature control system, the problems of inaccurate positioning results and poor positioning effect when the binocular camera heating element is temperature controlled by the prior art are solved. The control terminal determines the modulation signal based on the real-time temperature and the preset target temperature, and the electric cooling plate performs temperature control and adjustment on the binocular camera heating element based on the working current, so as to achieve the purpose of real-time temperature control of the binocular camera heating element, avoid the positioning result of the optical locator being affected by the heating of the binocular camera heating element, and ensure the positioning accuracy and positioning effect of the optical locator. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 is a structural diagram of a binocular camera heating element temperature control system provided in an embodiment of the present application;

[0053] Figure 2 It is a structural diagram of a combination of a binocular camera heating element and a temperature control system provided in an embodiment of the present application;

[0054] Figure 3is a structural block diagram of an optical locator provided in an embodiment of the present application;

[0055] Figure 4 It is a structural block diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical scheme and advantages of the present application clearer, the specific embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. It is understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for the convenience of description, only the part related to the present application but not all the contents are shown in the accompanying drawings. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processing or systems depicted as flow charts. Although the flow chart describes each operation (or step) as a sequential process, many of the operations therein can be implemented in parallel, concurrently or simultaneously. In addition, the order of each operation can be rearranged. The process can be terminated when its operation is completed, but it can also have additional steps not included in the accompanying drawings. The process can correspond to a system, function, procedure, subroutine, subprogram, etc.

[0057] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0058] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0059] First of all, the usage scenario of this solution can be a scenario of temperature control of the binocular camera heating element, especially a scenario of real-time temperature control of the binocular camera heating element based on the temperature of the binocular camera heating element detected in real time. For example: the scenario of real-time temperature control of the binocular camera in the optical locator. The control end determines the modulation signal based on the real-time temperature and the preset target temperature, and the temperature of the binocular camera heating element is adjusted based on the working current by the electric cooling plate. The purpose of real-time temperature control of the binocular camera heating element can be achieved, and the heating of the binocular camera heating element is avoided. The heating affects the positioning result of the optical locator, and the positioning accuracy and positioning effect of the optical locator are ensured. Based on the above usage scenarios, it can be understood that the executor of this solution can be an intelligent terminal integrated in the temperature control system of the binocular camera heating element.

[0060] In the following, in conjunction with the accompanying drawings, a binocular camera heating element temperature control system provided by an embodiment of the present application is described in detail through specific embodiments and application scenarios.

[0061] Figure 1 1 is a schematic diagram of a temperature control system for a binocular camera heating element provided in an embodiment of the present application. The system includes: a temperature sensor 101, a control terminal 102, a temperature control circuit 103 and an electric cooling sheet 104. Figure 1 As shown, specifically including the following:

[0062] The temperature sensor 101 is connected to the control terminal 102 and is used to upload the acquired real-time temperature of the heating element of the binocular camera to the control terminal 102;

[0063] The control terminal 102 is used to determine the modulation signal based on the real-time temperature and the preset target temperature;

[0064] The temperature control circuit 103 is connected to the control terminal 102 and is used to provide a working current to the electric cooling plate 104 based on the modulation signal;

[0065] The electric cooling sheet 104 is connected to the temperature control circuit 103, and the temperature control surface is attached to the corresponding position of the binocular camera heating element on the PCB board, and is used to perform temperature control and adjustment on the binocular camera heating element based on the working current.

[0066] Among them, the temperature sensor 101 can be a device for collecting object or environmental temperature data. The temperature sensor 101 in this solution is mainly used to collect real-time temperature data of the heating element of the binocular camera. The control terminal 102 can be a port that has the functions of sending, receiving, processing and controlling the operating status, data and signals of the equipment in the system, such as: smart terminals such as mobile phones, computers and tablets. The temperature control circuit 103 can be a conductive circuit for adjusting and controlling the cooling or heating temperature of the electric cold plate. For example: PWM (Pulse-Width Modulation) and constant current circuit, etc.

[0067] The electric cooling sheet 104 can be a device that uses the Peltier effect of semiconductor materials to achieve cooling or heating. The working principle of the electric cooling sheet 104 is that by loading an appropriate DC voltage at both ends of the semiconductor refrigerator, heat will flow from one end of the element to the other end, thereby achieving a cooling or heating effect.

[0068] The electric cooling sheet 104 can be attached to the component that needs to be cooled, thereby effectively absorbing the heat generated by the component, and transferring the heat to the radiator or the external environment through the heat dissipation surface, thereby achieving cooling of the component. The electric cooling sheet 104 in this solution can also be attached to the other side of the PAB board where the component that needs to be cooled is located, that is, attached to the corresponding position of the binocular camera heating element on the PCB board, thereby avoiding the problem of being unable to attach on both sides due to the particularity of the function of the binocular camera heating element. For example: one side of the binocular camera lens in the optical locator is attached to the PCB board for connecting the circuit, and the other side needs to collect images. At this time, the electric cooling sheet 104 can be attached to the position corresponding to the binocular camera lens on the other side of the PCB board. According to the heating power, available space, size and required temperature drop of each binocular camera heating element on the PCB board, select the appropriate electric cooling sheet size and cooling capacity. The electric cooling sheet 104 of the electric cooling sheet needs to be directly attached to the surface of the component that needs to be cooled or the PCB board. Therefore, during design, it is necessary to ensure that there are no components higher than the height of the electric cooling sheet 104 around the area where the electric cooling sheet 104 is to be set, so as to ensure the flatness and thermal conductivity of the area.

[0069] The binocular camera heating element can be a component that can generate a large amount of heat as the current flows through it. The binocular camera heating element in this solution is mainly a component that can generate a large amount of heat and whose working state is greatly affected by temperature. For example, the accuracy of the binocular camera lens in the optical locator is greatly affected by temperature. The real-time temperature can be the actual temperature data of the binocular camera heating element at each moment. If the binocular camera heating element continues to work and is not subjected to cooling treatment such as heat dissipation, the real-time temperature will continue to rise. The preset target temperature can be a pre-set temperature that can ensure that the binocular camera heating element is in a normal working state. The preset target temperature can be an accurate value or a range. The preset target temperatures corresponding to different binocular camera heating elements can be the same or different. The preset target temperature is mainly related to the degree to which the working state of the binocular camera heating element is affected by temperature.

[0070] The modulation signal may be a signal for adjusting the magnitude and direction of the output current or output voltage in the temperature control circuit 103. The working current may be the current flowing through the electric cold plate when the electric cold plate is in the working state. The temperature control surface may be the surface of the electric cold plate used for cooling or heating other objects. The PCB (Printed Circuit Board) board may be a circuit board used to support electronic components in the system and provide electrical connections for the electronic components. Temperature control regulation may be an operation of adjusting the temperature of the binocular camera heating element so that the binocular camera heating element quickly reaches the target temperature from the current temperature. Temperature control regulation includes the operation of cooling and heating the binocular camera heating element based on the real-time temperature and the target temperature.

[0071] In one embodiment, the temperature sensor 101 is disposed on the binocular camera heating element, and the temperature sensor 101 can be used to collect the temperature of the binocular camera heating element in real time, and the collected real-time temperature can be uploaded to the control end 102 through the connection relationship between the temperature sensor 101 and the control end 102. The control end 102 can determine the temperature value that needs to be increased or decreased for the binocular camera heating element at the current moment based on the real-time temperature and the preset target temperature of the binocular camera heating element stored in advance, and determine the modulation signal at the current moment based on the correlation between the temperature value and the modulation information. The temperature control circuit 103 can obtain the modulation signal of the circuit through the connection with the control end 102, and adjust the output current of the temperature control circuit 103 through the modulation signal, so as to use the output current as the working current of the electric cold plate 104. The electric cold plate 104 obtains the working current by connecting with the temperature control circuit 103. The electric cooling sheet 104 and the binocular camera heating element can be attached to the corresponding positions on both sides of the PCB board through thermal conductive materials such as thermal grease or thermal conductive glue. For example, if the binocular camera heating element is attached to position A on the front of the PCB board, the temperature control surface of the electric cooling sheet 104 needs to be attached to position A on the back of the PCB board. The electric cooling sheet 104 can operate according to the working current to cool or heat the binocular camera heating element.

[0072] To ensure the temperature control and regulation effect of the electric cooling sheet 104 on the binocular camera heating element, the bonding area between the temperature control surface of the electric cooling sheet 104 and the PCB board needs to be greater than or equal to the bonding area between the binocular camera heating element and the PCB board. Since the temperature of the binocular camera heating element changes in real time, the control end 102 needs to calculate the modulation signal of the temperature control circuit 103 in real time to control the working current flowing through the electric cooling sheet 104 through the temperature control circuit 103, and then the electric cooling sheet 104 performs real-time and precise cooling or heating of the heating component.

[0073] The temperature sensor 101 is used to monitor the component temperature in real time. The control end 102 compares the real-time temperature of the heating element of the binocular camera with the preset target temperature, and controls the working state of the electric cooling plate 104 through the temperature control circuit 103 such as PWM or constant current circuit to ensure that the system runs stably within the target temperature range.

[0074] In one embodiment, optionally, the binocular camera heating element includes two lens main chips arranged at the rear side of the binocular camera lens;

[0075] There are at least two electric cooling sheets 104 , which are arranged in parallel at the rear sides of the two lens main chips.

[0076] The main lens chip may be a photosensitive element in a binocular camera lens for capturing images, such as a CCD chip and a CMOS chip.

[0077] In one embodiment, the binocular camera heating element may include two lens main chips arranged at the rear side of the binocular camera lens. Since the heat dissipation surface area or the effective area that can be attached to the PCB board of different lens main chips may be different, and in order to ensure the temperature control effect of the electric cooling plate 104, the temperature control surface area of ​​the electric cooling plate 104 or the effective area that can be attached to the PCB board needs to be greater than or equal to the heat dissipation surface area of ​​the lens main chip or the effective area that can be attached to the PCB board. Therefore, when the heat dissipation surface area of ​​the lens main chip is too large, there may be a situation where the area of ​​a single electric cooling plate 104 is smaller than the area of ​​the lens main chip. At this time, the binocular camera heating element can be covered by attaching multiple electric cooling plates 104 on the PCB board to achieve the effect of combined temperature control of the lens main chip, that is, the number of electric cooling plates 104 is at least two. In general, the number of electric cooling plates 104 corresponds to the number of lens main chips one by one. The positional relationship of at least two electric cooling plates 102 is consistent with the positional relationship of the two lens main chips of the binocular camera, and is arranged in parallel on the rear side of the two lens main chips. That is, the setting height, setting angle and setting position of at least two electric cooling plates 102 on the PCB board can be in a parallel relationship. At least two electric cooling plates 102 on the rear side of the same lens main chip are arranged adjacent to each other to completely cover the heat dissipation surface of the lens main chip. At least two electric cooling plates 102 on the rear sides of different lens main chips are arranged correspondingly, and the setting heights and setting angles can be consistent.

[0078] In this solution, by providing at least two electric cooling plates, and arranging the electric cooling plates in parallel on the rear sides of two lens main chips on the rear sides of the binocular camera lenses, the purpose of effectively controlling the temperature of the heating elements of the binocular camera can be achieved without affecting the image acquisition of the binocular camera.

[0079] In one embodiment, optionally, the operating current includes: a current direction and a current magnitude;

[0080] The electric cooling sheet 104 is specifically used for:

[0081] The heating element of the binocular camera is heated or cooled based on the current direction and current magnitude.

[0082] The current direction may be the direction of the direct current flowing through the two ends of the electric cooling plate 104. The current magnitude may be the current value of the working current.

[0083] In one embodiment, since the temperature control state of the electric cooling sheet 104 for cooling or heating is related to the direction of the current, and the operating power is related to the magnitude of the current, the electric cooling sheet 104 can heat or cool the heating component according to the direction of the current, and adjust the power and effect of heating or cooling the heating element of the binocular camera according to the magnitude of the current. Since the temperature of the binocular camera heating element changes in real time, when the real-time temperature of the binocular camera heating element is lower than the preset target temperature, it can be heated by the electric cooling sheet 104; when the real-time temperature is higher than the preset target temperature, it can be cooled by the electric cooling sheet 104 to ensure that the binocular camera heating element is always at the preset target temperature, thereby ensuring the working state of the binocular camera heating element.

[0084] This solution can achieve the purpose of flexible temperature control of the binocular camera heating element by controlling the electric cooling plate to heat or cool the binocular camera heating element based on the current direction and current magnitude, and further ensure the stability of the working state of the binocular camera heating element.

[0085] In one embodiment, optionally, the system further comprises: a heat sink or an air-cooled heat sink;

[0086] A heat sink, which is attached to the heat dissipation surface of the electric cooling sheet 104 and is used to dissipate the working heat generated by the electric cooling sheet 104;

[0087] or

[0088] The air-cooled radiator is spaced apart from the heat dissipation surface of the electric cooling plate 104 and is used to dissipate the working heat generated by the electric cooling plate 104 .

[0089] Among them, the heat sink can be a device that uses a large area metal plate or metal sheet and a heat conductive material with good heat conductivity to help the working heat generated by the electric cooling plate 104 to dissipate heat quickly. The larger the area of ​​the heat sink, the better the heat dissipation effect. The air-cooled radiator can be a device that uses the airflow generated by the fan to help the working heat generated by the electric cooling plate 104 to dissipate heat quickly. The heat dissipation surface of the electric cooling plate 104 can be a surface opposite to the temperature control surface for dissipating the working heat generated by the electric cooling plate 104.

[0090] The heat dissipation surface of the electric cooling plate 104 needs to be connected to the radiator so that the heat can be dissipated in time. When the temperature control surface of the electric cooling plate 104 is attached to the top of the heating element of the binocular camera or the PCB board, thermal grease or thermal adhesive can be used to enhance the heat conduction effect and ensure that the heat is quickly transferred to the electric cooling plate. The heat dissipation surface must be equipped with a radiator, including an aluminum or copper heat sink and an air-cooled radiator. According to the power of the electric cooling plate 104 and the size of the heat dissipation surface, the appropriate heat sink material and size are selected to ensure that the heat dissipation surface of the electric cooling plate 104 can effectively dissipate heat. The heat dissipation of the heat dissipation surface needs to be fully considered, and the heat dissipation efficiency can be improved by increasing the surface area of ​​the fins of the heat sink or the air-cooled radiator.

[0091] In one embodiment, a heat sink may be attached to the heat dissipation surface of the electric cooling sheet 104 to increase the heat dissipation efficiency of the heat dissipation surface, thereby accelerating the heat dissipation efficiency of the working heat generated by the electric cooling sheet 104. An air-cooled heat sink may also be provided at a position spaced apart from and directly opposite the heat dissipation surface of the electric cooling sheet 104 to accelerate the air circulation speed around the heat dissipation surface through the air-cooled heat sink, thereby accelerating the heat dissipation efficiency of the working heat generated by the electric cooling sheet 104.

[0092] In this solution, the heat dissipation efficiency of the electric cooling sheet can be improved by laminating the heat dissipation surface of the heat sink with the electric cooling sheet or arranging the heat dissipation surface of the air cooling radiator with the electric cooling sheet at a distance, thereby further ensuring the temperature control effect of the electric cooling sheet.

[0093] The technical solution provided in the embodiment of the present application is that the temperature sensor is connected to the control end, and is used to upload the acquired real-time temperature of the binocular camera heating element to the control end; the control end is used to determine the modulation signal based on the real-time temperature and the preset target temperature; the temperature control circuit is connected to the control end, and is used to provide the working current for the electric cooling plate based on the modulation signal; the electric cooling plate is connected to the temperature control circuit, and the temperature control surface is fitted with the corresponding position of the binocular camera heating element on the PCB board, and is used to perform temperature control and adjustment on the binocular camera heating element based on the working current. The above binocular camera heating element temperature control system solves the problems of inaccurate positioning results and poor positioning effect when the binocular camera heating element is temperature controlled by the prior art. The control end determines the modulation signal based on the real-time temperature and the preset target temperature, and the electric cooling plate performs temperature control and adjustment on the binocular camera heating element based on the working current, so as to achieve the purpose of real-time temperature control on the binocular camera heating element, and ensure the positioning accuracy and positioning effect of the optical locator.

[0094] In one embodiment, optionally, the modulation signal includes a pulse width modulation signal or a constant current modulation signal;

[0095] The control terminal 102 is specifically used for:

[0096] Calculate the temperature difference of the heating element of the binocular camera at the current moment based on the real-time temperature and the preset target temperature;

[0097] Determining a duty cycle of a pulse width modulation signal based on the temperature difference and a preset first conversion algorithm;

[0098] or,

[0099] The output current of the constant current modulation signal is determined based on the temperature difference and a preset second conversion algorithm.

[0100] Among them, the pulse width modulation signal can be a signal that controls the output voltage or output current of the temperature control circuit 103 by changing the pulse width (duty cycle). The duty cycle of the pulse width modulation signal can be the ratio of the high level duration to the entire cycle time. For example: assuming that the period of the PWM signal is 1 second and the high level duration is 0.5 seconds, the duty cycle is 50%. The constant current modulation signal controls the output voltage or output current of the temperature control circuit 103 by adjusting the impedance. The preset first conversion algorithm can be a preset algorithm for converting the temperature difference into the duty cycle of the pulse width modulation signal. The preset second conversion algorithm can be a preset algorithm for converting the temperature difference into the output current of the constant current modulation signal.

[0101] In one embodiment, the control end 102 can subtract the real-time temperature from the preset target temperature to obtain the temperature difference between the heating element of the binocular camera and the target temperature at the current moment, and calculate the duty cycle of the pulse width modulation signal at the current moment according to the temperature difference and the preset first conversion algorithm. The control end 102 can also calculate the output current of the constant current modulation signal at the current moment according to the temperature difference and the preset second conversion algorithm.

[0102] In one embodiment, optionally, the temperature control surface and the PCB board are bonded based on thermal conductive silicone grease or thermal conductive silicone;

[0103] The control terminal 102 is also used for:

[0104] Get the bonding area of ​​the temperature control surface on the PCB board. The bonding area is the actual contact area between the temperature control surface and the thermal grease or thermal silica gel.

[0105] Adjusting the calculation parameters in the preset first conversion algorithm based on the fitting area;

[0106] or,

[0107] Adjusting the calculation parameters in the preset second conversion algorithm based on the fitting area;

[0108] Calculate the temperature difference of the heating element of the binocular camera at the current moment based on the real-time temperature and the preset target temperature;

[0109] Determining a duty cycle of the pulse width modulation signal based on the temperature difference and the adjusted preset first conversion algorithm;

[0110] or,

[0111] The output current of the constant current modulation signal is determined based on the temperature difference and the adjusted preset second conversion algorithm.

[0112] Among them, the bonding area can be the effective area of ​​the temperature control surface of the electric cold plate 104 and the bonding material in actual contact. That is, the bonding area can be the actual contact area between the temperature control surface and the thermal grease or thermal conductive silicone. The bonding area of ​​the temperature control surface on the PCB board can be the same as or different from the contact area between the PCB board and the thermal grease or thermal conductive silicone, which is specifically related to the design shape of the thermal grease or thermal conductive silicone in the bonding stage of the electric cold plate 104. The bonding material can be a material used to bond the electric cold plate 104 to the PCB board. For example: materials with good heat conduction effect such as thermal grease or thermal conductive glue. Bonding the electric cold plate 104 to the PCB board through the bonding material can ensure that the heat of the binocular camera heating element on the PCB board is quickly transferred to the temperature control surface of the electric cold plate 104, and the temperature of the temperature control surface of the electric cold plate 104 is quickly transferred to the binocular camera heating element through the PCB board. The calculation parameters in the preset first conversion algorithm can be all parameters related to the bonding area in the preset first conversion algorithm. The calculation parameters in the preset second conversion algorithm may be all parameters related to the fitting area in the preset second conversion algorithm.

[0113] In one embodiment, the control end 102 can determine the bonding area of ​​the temperature control surface on the PCB board by obtaining the specification parameters of the thermal conductive silicone or thermal conductive grease or the pre-stored design parameters of the electric cooling plate 104 during the bonding stage. Since the temperature control effects of the electric cooling plates 104 with different bonding areas are not exactly the same, that is, under the same temperature control effect, the working currents required by the electric cooling plates 104 with different bonding areas are different, therefore, the calculation parameters in the preset first conversion algorithm can be adjusted based on the association between the bonding area and the preset first conversion algorithm; the calculation parameters in the preset second conversion algorithm can also be adjusted based on the association between the bonding area and the preset second conversion algorithm. The control end 102 can calculate the temperature difference of the heating element of the binocular camera at the current moment based on the real-time temperature and the preset target temperature, determine the duty cycle of the pulse width modulation signal based on the temperature difference and the adjusted preset first conversion algorithm, and can also determine the output current of the constant current modulation signal based on the temperature difference and the adjusted preset second conversion algorithm.

[0114] In this solution, the control end obtains the bonding area of ​​the temperature control surface on the PCB board, adjusts the calculation parameters in the preset conversion algorithm based on the bonding area, and then determines the duty cycle of the pulse width modulation signal or the output current of the constant current modulation signal, which can improve the accuracy of the working current control of the electric cooling plate and avoid resource loss.

[0115] The technical solution provided in the embodiment of the present application calculates the temperature difference based on the real-time temperature and the preset target temperature by the control end, and determines the duty cycle of the pulse width modulation signal or the output current of the constant current modulation signal based on the temperature difference and the conversion algorithm. This can improve the purpose of controlling the working current of the electric cooling plate based on the temperature difference, and improve the accuracy of temperature control of the heating element of the binocular camera.

[0116] In one embodiment, optionally, the control terminal 102 is specifically configured to:

[0117] Determine the total modulation signal of the temperature control circuit 103 based on the real-time temperature and the preset target temperature;

[0118] The specifications of the electric cooling plates 104 are obtained, and the modulation signal of the temperature control circuit 103 for each electric cooling plate 104 is determined based on the total modulation signal, the specifications and the number of the electric cooling plates 104 .

[0119] The total modulation signal of the temperature control circuit 103 may be a modulation signal of the main circuit of the temperature control circuit 103. The modulation signal of each electric cooling sheet 104 may be a modulation signal of a circuit branch of the temperature control circuit 103 where each electric cooling sheet 104 is located. The specification of the electric cooling sheet 104 may be a parameter used to indicate the appearance characteristics and functional characteristics of the electric cooling sheet 104. For example: the size and power of the electric cooling sheet 104.

[0120] In one embodiment, the electric cooler 104 is usually powered by a DC power supply, and a typical operating voltage is 12V or 24V. The current depends on the power of the electric cooler and the preset target temperature of the heating element of the binocular camera. The corresponding temperature control circuit 103 can be designed according to the actual number of electric coolers used and the total power requirement to avoid excessive cooling or heating of the electric cooler 104.

[0121] At least two electric cooling sheets 104 bonded on the PCB board can be combined in series and / or in parallel in the temperature control circuit 103. The control end 102 can determine the total modulation signal of the temperature control circuit 103 according to the temperature difference between the real-time temperature and the preset target temperature, obtain the specifications of the electric cooling sheet 104 by reading the parameters of the electric cooling sheet 104, and determine the modulation signal of the circuit branch where each electric cooling sheet 104 is located by the temperature control circuit 103 based on the total modulation signal, the specifications and the number of the electric cooling sheet 104.

[0122] The technical solution provided in the embodiment of the present application can expand the scope of application of the solution by setting up multiple electric cooling plates to perform combined temperature control on the heating elements of the binocular camera, and calculating the modulation signal of the temperature control circuit on each electric cooling plate through the control end. Even when the area of ​​the heating element of the binocular camera is too large, temperature control adjustment can be performed, further ensuring the efficiency of the temperature control of the heating element of the binocular camera.

[0123] Figure 2 : is a structural diagram of the combination of the binocular camera heating element and the temperature control system provided in the embodiment of the present application. Figure 2 As shown, the combination includes a circuit board 204 for supporting a binocular camera heating element 205 and an electric cooling plate 202, and a control circuit 203 is provided on the circuit board. The control circuit 203 is connected to the electric cooling plate 202 and the control terminal 207 respectively, and is used to provide working current to the electric cooling plate 202 based on the control instruction of the control terminal 207. The temperature sensor 206 is connected to the binocular camera heating element 205 and the control terminal 207 respectively, and is used to collect the temperature of the binocular camera heating element 205 in real time, and upload the collected temperature to the control terminal 207. The binocular camera heating element 205 is attached to the other side of the circuit board 204, and the heat is dissipated through the circuit board. The electric cooling plate 202 cools the binocular camera heating element 205 through the circuit board 204. A radiator 201 is provided on the electric cooling plate 202, and the radiator 201 is used to dissipate the heat generated by the operation of the electric cooling plate 202 to ensure the temperature control effect of the electric cooling plate.

[0124] Figure 3 : is a structural block diagram of an optical locator provided in an embodiment of the present application. Figure 3 As shown, specifically including the following:

[0125] The optical locator 301 includes: a binocular camera lens 3011, a PCB board 3012 and a binocular camera heating element temperature control system 3013.

[0126] The optical locator 301 may be an instrument that uses light waves to measure the position of an object. The binocular camera lens 3011 may be a device used to collect infrared images in the optical locator 301. The PCB board 3012 may be a circuit board used to support the components in the optical locator 301 and the components in the binocular camera heating element temperature control system 3013. The components in the optical locator 301 include the binocular camera lens 3011 and the like.

[0127] In one embodiment, optionally, the optical locator 301 is further used for:

[0128] Determine the configurable configuration of the heat sink of the electric cooling sheet 104 based on the internal space information and the position of the electric cooling sheet 104;

[0129] The power of the electric cooling sheet 104 is obtained, and the final configuration of the heat sink of the electric cooling sheet 104 is determined based on the power and the configuration that the heat sink can be configured.

[0130] In one embodiment, the optical locator 301 can determine the configurable spatial range of the heat sink of the electric cooler 104 in the optical locator 301 according to its own internal spatial information and the position of the electric cooler 104, and determine the configurable form according to the configurable spatial range and the parameters of the heat sink. The configurable form includes the size, shape and setting position of the heat sink fins. The operating power of the electric cooler 104 is obtained, the heat dissipation efficiency required by the electric cooler 104 is determined according to the operating power, and the final setting form of the heat sink of the electric cooler 104 is determined according to the heat dissipation efficiency and the configurable form of the heat sink. The final setting form can be a configurable form that occupies the smallest space under the premise of meeting the heat dissipation efficiency required by the electric cooler 104.

[0131] This solution can achieve the purpose of optimizing the radiator space occupancy and ensuring the heat dissipation effect of the electric cooler by determining the final setting form of the electric cooler radiator based on the internal space information of the optical locator, the position and power of the electric cooler.

[0132] Optionally, the optical locator 301 further includes: a heat dissipation hole;

[0133] The optical locator 301 is also used for:

[0134] Determine the setting position, shape information and size information of the radiator based on the final setting form;

[0135] Determine a heat dissipation path of the radiator based on the internal space information, the setting position of the radiator and the spatial position relationship between the heat dissipation holes;

[0136] A final heat dissipation path of the heat sink is determined based on the heat dissipation path, shape information and size information of the heat sink.

[0137] In one embodiment, the optical locator 301 also includes a heat dissipation hole for dissipating the heat generated by the heating element of the binocular camera from the internal space to the external environment. The optical locator 301 can determine the setting position, shape information and size information of the radiator according to the final setting form of the radiator, and determine the settable path for transferring the heat of the radiator to the heat dissipation hole according to the internal space information, the setting position of the radiator and the spatial position relationship between the heat dissipation hole, that is, the heat dissipation path of the radiator. According to the heat dissipation path, the shape information and size information of the radiator, the path in the heat dissipation path that can avoid other components in the internal space and has the shortest transfer path is determined as the final heat dissipation path.

[0138] This solution, by determining the final heat dissipation path of the radiator based on the final setting form of the radiator, the internal space information, and the spatial position relationship between the radiator and the heat dissipation holes, can achieve the purpose of dissipating the heat in the internal space to the external environment without affecting other components, thereby improving the heat dissipation efficiency of the internal space of the optical locator.

[0139] In one embodiment, optionally, the optical locator 301 further includes: an electric cooling plate 104 anti-condensation component;

[0140] The anti-condensation component of the electric cooling plate 104 includes a waterproof coating and / or a waterproof protective cover.

[0141] In one embodiment, the optical aligner 301 further includes an anti-condensation component of the electric cooling plate 104, which may be a waterproof coating and / or a waterproof protective cover disposed on the temperature control surface of the electric cooling plate 104. Since the temperature of the temperature control surface of the electric cooling plate 104 may be lower than the ambient dew point temperature, condensation water may be easily generated near the temperature control surface, thereby causing damage to the circuit board. Therefore, a waterproof structure may be installed around the electric cooling plate 104 or a waterproof coating may be used.

[0142] In this solution, a waterproof coating and / or a waterproof protective cover is provided on the electric cooling plate to achieve waterproofing, thereby protecting the circuit board of the electric cooling plate and extending the service life of the electric cooling plate.

[0143] The technical solution provided in the embodiment of the present application is an optical locator, comprising: a binocular camera lens, a PCB board, and a binocular camera heating element temperature control system. Through the above-mentioned optical locator, the binocular camera heating element temperature control system can be used to control the temperature of the binocular camera heating element inside the optical locator, especially the temperature of the binocular camera lens, thereby effectively ensuring the positioning accuracy of the optical locator.

[0144] A binocular camera heating element temperature control system in the embodiment of the present application can be an operating system. The operating system can be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.

[0145] A binocular camera heating element temperature control system provided in an embodiment of the present application can realize each process implemented by the above-mentioned system embodiments. To avoid repetition, it will not be described here.

[0146] like Figure 4 As shown, an embodiment of the present application also provides an electronic device 400, including a processor 401, a memory 402, and a program or instruction stored in the memory 402 and executable on the processor 401. When the program or instruction is executed by the processor 401, each process of the above-mentioned binocular camera heating element temperature control system embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0147] It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and non-mobile electronic devices mentioned above.

[0148] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned binocular camera heating element temperature control system embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0149] The processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0150] The present application embodiment further provides a program product, which includes a program code. When the program product is run on a computer device, the program code is used to enable the computer device to execute the steps of the system according to various exemplary embodiments of the present application described above in this specification. For example, the computer device can execute a binocular camera heating element temperature control system recorded in the embodiment of the present application. The program product can be implemented in any combination of one or more readable media.

[0151] It should be noted that, in this article, the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, system, article or optical locator including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, system, article or optical locator. In the absence of further restrictions, an element defined by the sentence "including one..." does not exclude the presence of other identical elements in the process, system, article or optical locator including the element. In addition, it should be pointed out that the scope of the system and optical locator in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described system may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0152] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment system can be implemented by means of software plus a necessary general hardware platform, and of course it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), including a number of instructions for a terminal (which can be a mobile phone, computer, server, or network device, etc.) to execute the system described in each embodiment of the present application.

[0153] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

[0154] The above are only preferred embodiments of the present application and the technical principles used. The present application is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions that can be made by those skilled in the art will not deviate from the scope of protection of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the claims.

Claims

1. A binocular camera heating element temperature control system, characterized in that: The system comprises: a temperature sensor, a control terminal, a temperature control circuit and an electric cooling sheet, wherein: The temperature sensor is connected to the control end and is used to upload the acquired real-time temperature of the heating element of the binocular camera to the control end; The control end is used to determine a modulation signal based on the real-time temperature and a preset target temperature; The temperature control circuit is connected to the control end and is used to provide a working current for the electric cooling plate based on the modulation signal; The electric cooling sheet is connected to the temperature control circuit, and the temperature control surface is fitted with the binocular camera heating element at a corresponding position on the PCB board, and is used to perform temperature control and adjustment on the binocular camera heating element based on the working current.

2. The binocular camera heating element temperature control system according to claim 1, characterized in that: The binocular camera heating element includes two lens main chips arranged at the rear side of the binocular camera lens; The number of the electric cooling plates is at least two, and they are arranged in parallel on the rear sides of the two lens main chips.

3. The binocular camera heating element temperature control system according to claim 1, characterized in that: The modulation signal includes a pulse width modulation signal or a constant current modulation signal; The control end is specifically used for: Calculate the temperature difference of the binocular camera heating element at the current moment based on the real-time temperature and the preset target temperature; Determining a duty cycle of the pulse width modulation signal based on the temperature difference and a preset first conversion algorithm; or, The output current of the constant current modulation signal is determined based on the temperature difference and a preset second conversion algorithm.

4. The binocular camera heating element temperature control system according to claim 3, characterized in that: The temperature control surface is bonded to the PCB board using thermal grease or thermal silica gel; The control terminal is also used for: Obtaining a fitting area of ​​the temperature control surface on the PCB board, where the fitting area is an actual contact area between the temperature control surface and the thermal grease or thermal silica gel; Adjusting the calculation parameters in the preset first conversion algorithm based on the fitting area; or, Adjusting the calculation parameters in the preset second conversion algorithm based on the fitting area; Calculate the temperature difference of the binocular camera heating element at the current moment based on the real-time temperature and the preset target temperature; Determining a duty cycle of the pulse width modulation signal based on the temperature difference and the adjusted preset first conversion algorithm; or, The output current of the constant current modulation signal is determined based on the temperature difference and the adjusted preset second conversion algorithm.

5. The binocular camera heating element temperature control system according to claim 1, characterized in that: The working current includes: current direction and current magnitude; The electric cooling sheet is specifically used for: The binocular camera heating element is heated or cooled based on the current direction and the current magnitude.

6. The binocular camera heating element temperature control system according to claim 2, characterized in that: The control end is specifically used for: Determine a total modulation signal of the temperature control circuit based on the real-time temperature and a preset target temperature; The specifications of the electric cooling sheets are obtained, and the modulation signal of the temperature control circuit for each of the electric cooling sheets is determined based on the total modulation signal, the specifications and the quantity of the electric cooling sheets.

7. An optical locator, characterized in that: The optical locator comprises: a binocular camera lens, a PCB board and a binocular camera heating element temperature control system as described in any one of claims 1-6.

8. An optical locator according to claim 7, characterized in that: The optical locator is also used for: Determine the configurable form of the heat sink of the electric cooling plate based on the internal space information and the position of the electric cooling plate; The power of the electric cooling sheet is obtained, and a final configuration of the heat sink is determined based on the power and the configurations that the heat sink can configure.

9. An optical locator according to claim 8, characterized in that: The optical locator also includes: a heat dissipation hole; The optical locator is also used for: Determine the setting position, shape information and size information of the radiator based on the final setting form; Determine a heat dissipation path of the radiator based on the internal space information, the spatial position relationship between the setting position of the radiator and the heat dissipation hole; A final heat dissipation path of the heat sink is determined based on the heat dissipable path, shape information and size information of the heat sink.

10. The optical locator according to claim 8, characterized in that: The optical locator also includes: an electric cooling plate anti-condensation component; The electric cooling plate anti-condensation component includes a waterproof coating and / or a waterproof protective cover.

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