Power supply circuit and distance measuring equipment thereof

Abstract

The utility model provides a power supply circuit and distance measuring equipment thereof, the power supply circuit comprises a plurality of power supply devices, a plurality of voltage protection modules and a power supply switching module, the voltage protection modules are connected with the power supply devices in a one-to-one correspondence manner, and the voltage protection modules are used for providing voltage protection. The input end of the power supply switching module is connected with each voltage protection module, and the output end of the power supply switching module is used for being connected with a functional module of the distance measuring equipment; the power supply switching module is used for connecting or disconnecting a power supply loop between the power supply device and the function module so as to switch the power supply device to supply power to the function module of the distance measuring equipment. The utility model aims to provide the power supply circuit with sufficient power supply quantity, so that the cruising ability of the distance measuring equipment is improved.

Description

Technical Field

[0001] The present application relates to the technical field of distance measurement, and in particular to a power supply circuit and a distance measurement device thereof. Background Art

[0002] At present, with the development of measurement technology, the functions of distance measuring equipment such as laser rangefinders are becoming more and more diversified. As an important component of distance measuring equipment, the power supply circuit needs to provide more energy support for the distance measuring equipment. However, traditional distance measuring equipment is usually powered by dry batteries, which has the problem of insufficient power supply, resulting in insufficient battery life of the distance measuring equipment. Therefore, how to improve the battery life of distance measuring equipment has become an urgent problem to be solved. Utility Model Content

[0003] The main purpose of the present application is to provide a power supply circuit of a multi-power supply device, which can provide sufficient power supply for a ranging device and can switch power supply devices for power supply, thereby improving the endurance of the ranging device.

[0004] In a first aspect, the present application provides a power supply circuit, which is used to supply power to a functional module of the ranging device; the power supply circuit includes a plurality of power supply devices, a plurality of voltage protection modules and a power switching module;

[0005] Each of the voltage protection modules is connected to each of the power supply devices in a one-to-one correspondence, and the voltage protection module is used to provide voltage protection;

[0006] The input end of the power switching module is connected to each of the voltage protection modules, and the power switching module is used to connect the functional modules; the power switching module is used to turn on or off the power supply circuit between the power supply device and the functional module to switch the power supply device to supply power to the functional module.

[0007] In a second aspect, an embodiment of the present application further provides a ranging device, comprising a functional module; and a power supply circuit as described in any one of the embodiments, wherein the power supply circuit is used to supply power to the functional module.

[0008] The embodiment of the present application provides a power supply circuit and a ranging device thereof, wherein the power supply circuit includes a plurality of power supply devices, a plurality of voltage protection modules and a power switching module, wherein each voltage protection module is connected to each power supply device in a one-to-one correspondence, and the voltage protection module is used to provide voltage protection. The input end of the power switching module is connected to each voltage protection module, and the output end of the power switching module is used to connect the functional module of the ranging device; the power switching module is used to turn on or off the power supply circuit between the power supply device and the functional module to switch the power supply device to supply power to the functional module of the ranging device. By supplying power to the functional module of the ranging device through a plurality of power supply devices, and being able to switch the power supply devices for power supply, sufficient power can be provided to the ranging device, thereby eliminating the need for frequent battery replacement, and greatly improving the battery life of the ranging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0010] Figure 1 A circuit diagram of an implementation of a power supply circuit provided in an embodiment of the present application;

[0011] Figure 2 A circuit diagram of another implementation of a power supply circuit provided in an embodiment of the present application;

[0012] Figure 3 A circuit diagram of another implementation of a power supply circuit provided in an embodiment of the present application;

[0013] Figure 4 A circuit diagram of another implementation of a power supply circuit provided in an embodiment of the present application;

[0014] Figure 5 A circuit diagram of another implementation of a power supply circuit provided in an embodiment of the present application;

[0015] Figure 6 A circuit diagram of another implementation of a power supply circuit provided in an embodiment of the present application;

[0016] Figure 7 A circuit diagram of another implementation of a power supply circuit provided in an embodiment of the present application;

[0017] Figure 8 A circuit diagram of another implementation of a power supply circuit provided in an embodiment of the present application;

[0018] Fig. 9A circuit diagram of another implementation of a power supply circuit provided in an embodiment of the present application;

[0019] Fig.10 A circuit diagram of another implementation of a power supply circuit provided in an embodiment of the present application;

[0020] Fig.11 A schematic block diagram of a distance measuring device provided in an embodiment of the present application;

[0021] Fig.12 A schematic structural diagram of a telescopic optical system provided in an embodiment of the present application.

[0022] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0025] Please refer to Figure 1 , Figure 1 A circuit diagram of an embodiment of a power supply circuit provided in an embodiment of the present application. The power supply circuit 100 can be applied to a distance measuring device. The distance measuring device may include a rangefinder, a distance measuring telescope, etc. The distance measuring device may include, but is not limited to, functional modules 10 such as a laser emission module, a laser detection module, a data operation and processing module, a human-computer interaction module, and a communication module. The functional module 10 can also be understood as a power consumption module or a power module in the distance measuring device, so as to support the distance measuring device to realize the relevant distance measuring function. The power supply circuit 100 is used to supply power to the functional module 10 of the distance measuring device.

[0026] like Figure 1 As shown, the power supply circuit 100 includes a plurality of power supply devices 110 , a plurality of voltage protection modules 120 and a power switching module 130 .

[0027] The number of the power supply devices 110 is at least two, and the number of the voltage protection modules 120 is the same as the number of the power supply devices 110. The power supply device 110 may include one or more electrical energy storage units, such as one or more batteries. Each power supply device 110 may be a different type of battery, for example, multiple power supply devices 110 may include at least one rechargeable battery and at least one disposable battery. The power supply device 110 may be a single battery, or may be formed by combining multiple batteries in series and parallel.

[0028] Each voltage protection module 120 is connected to each power supply device 110 in a one-to-one correspondence, and the voltage protection module 120 is used to provide voltage protection. Among them, the voltage protection can be overvoltage protection or undervoltage protection, and of course it can also include overvoltage protection and undervoltage protection. For each power supply device 110, a voltage protection module 120 is connected in a one-to-one correspondence, which can provide better protection for the components in the ranging device, thereby improving the service life and reliability of the ranging device.

[0029] The input end of the power switching module 130 is connected to each voltage protection module 120, and the output end of the power switching module 130 is used to connect the functional module 10. The power switching module 130 is used to turn on or off the power supply circuit between the power supply device 110 and the functional module 10 to switch the power supply device 110 to supply power to the functional module 10 of the ranging device.

[0030] It should be noted that the power switching module 130 can control the on / off of the circuit between each power supply device 110 and the functional module 10, thereby switching the power supply device 110 supplying power to the functional module 10. When each power supply device 110 is a different type of battery, the power supply device 110 supplying power to the functional module 10 at the same time can be one, thereby avoiding power supply devices 110 with different working voltages from participating in the power supply together.

[0031] In the embodiment of the present application, the power circuit 100 is provided with a plurality of power supply devices 110, and the power supply switching of the plurality of power supply devices 110 can be realized through the power switching module 130. Therefore, the power circuit 100 can provide sufficient power supply for the ranging device, greatly improving the endurance of the ranging device, thereby improving the ranging time and reliability of the ranging device.

[0032] For example, Figure 2As shown, the multiple power supply devices 110 include power supply device A, power supply device B and power supply device C. Among them, power supply device A is a disposable battery, power supply device B is a rechargeable battery, and power supply device C is a disposable battery. The battery models of power supply device A and power supply device C can be different. Multiple voltage protection modules 120 include voltage protection module A, voltage protection module B and voltage protection module C. The input ends of voltage protection module A, voltage protection module B and voltage protection module C are respectively connected to power supply device A, power supply device B and power supply device C, and the output ends of voltage protection module A, voltage protection module B and voltage protection module C are all connected to power switching module 130. The specific circuit structures of voltage protection module A, voltage protection module B and voltage protection module C can be the same or different.

[0033] like Figure 2 As shown, it is assumed that at the first moment, the power supply circuit between the power supply device A and the functional module 10 in the power switching module 130 is turned on, and the power supply circuit between the power supply devices B and C and the functional module 10 is turned off, that is, the power supply device A supplies power to the functional module 10. At the second moment, in order to switch the power supply device A that supplies power to the functional module 10 to the power supply device B, the power switching module 130 disconnects the power supply circuit between the power supply device A and the functional module 10, and turns on the power supply circuit between the power supply device B and the functional module 10. The power supply circuit between the power supply device C and the functional module 10 remains disconnected. It can be seen that by implementing the switching power supply of each power supply device 110 through the power switching module 130, the power supply amount provided to the ranging device can be greatly increased, thereby greatly improving the endurance of the ranging device.

[0034] In one embodiment, the voltage protection module 120 includes an overvoltage protection unit, which is connected to the power supply device 110 in a one-to-one correspondence. The overvoltage protection unit is used to provide overvoltage protection to prevent the output voltage of the power supply device 110 from being overvoltage and causing harm to the safety of the subsequent circuit. For example, the overvoltage protection unit is turned off when the output voltage of the correspondingly connected power supply device 110 is greater than the set overvoltage protection voltage, thereby disconnecting the power supply device 110 from supplying power to the subsequent circuit, and the subsequent circuit is, for example, the functional module 10 of the ranging device.

[0035] It should be noted that when each power supply device 110 in the distance measuring device is installed or removed, voltage jumps often occur, resulting in an over-high output voltage of the power supply device 110. Therefore, an overvoltage protection unit is connected to each power supply device 110 in a one-to-one correspondence, which can provide better voltage protection for the components in the distance measuring device, thereby improving the service life and reliability of the distance measuring device.

[0036] In one embodiment, the voltage protection module 120 includes an undervoltage protection unit, which is connected to the power supply device 110 in a one-to-one correspondence, and the undervoltage protection unit is used to provide undervoltage protection, thereby preventing the power supply device 110 from over-discharging. For example, the undervoltage protection unit is turned off when the output voltage of the correspondingly connected power supply device 110 is less than or equal to the set undervoltage protection voltage, thereby disconnecting the power supply device 110 from supplying power to the subsequent circuit, thereby preventing the power supply device 110 from being damaged due to over-discharging.

[0037] In one embodiment, the voltage protection module 120 includes an overvoltage and undervoltage protection unit, which is connected to the power supply device 110 in a one-to-one correspondence, and the overvoltage and undervoltage protection unit is used to provide overvoltage protection and undervoltage protection. For example, the overvoltage and undervoltage protection unit is turned off when the output voltage of the corresponding power supply device 110 is greater than the set overvoltage protection voltage, and is turned off when the output voltage of the corresponding power supply device 110 is less than or equal to the set undervoltage protection voltage.

[0038] It is understandable that the overvoltage protection unit, undervoltage protection unit and specific circuits of the overvoltage and undervoltage protection units in the voltage protection module 120 can be set according to actual conditions, and the voltage protection module 120 can also include an overcurrent protection circuit, etc., which is not specifically limited in the embodiment of the present application. In some cases, multiple power supply devices 110 include rechargeable batteries and disposable batteries, and a voltage protection module 120 needs to be provided to be connected to the output end of the power supply device 110 to provide overvoltage protection or undervoltage protection, thereby avoiding damage to the power supply circuit 100 or the functional module 10, thereby improving the service life and reliability of the ranging equipment.

[0039] In one embodiment, the power switching module 130 includes a first switch unit, the input end of the first switch unit is connected to each voltage protection module 120, and the output end of the first switch unit is connected to the functional module 10 of the ranging device. The first switch unit may include one or more switch devices such as a single-pole double-throw switch, a single-pole multi-throw switch, a relay, etc. The first switch unit may also include one or more switch devices such as transistors or MOS tubes.

[0040] It should be noted that the user can control the switching power supply device 110 by controlling the first switch unit. For example, the user can control the first switch unit by triggering operations of triggers such as keys, buttons, controls, icons, etc. in the human-computer interaction module, and the display screen is, for example, a liquid crystal display (LCD), an organic light-emitting diode (OLED) display screen, etc.

[0041] In some examples, the power circuit 100 can also be automatically controlled under a set program to switch the power supply device 110 that supplies power to the functional module 10 of the ranging device. In some cases, there is only one power supply device 110 that supplies power to the functional module 10 of the ranging device, so when switching the power supply device, only one power supply device 110 can be switched to another power supply device 110.

[0042] In one embodiment, the power switching module 130 includes a plurality of second switch units, and the input end of each second switch unit is connected to each voltage protection module 120 in a one-to-one correspondence. The output end of each second switch unit is used to connect the functional module 10, which is used to connect the functional module 10 of the ranging device. When the second switch unit is turned on, the power supply circuit between the correspondingly connected power supply device 110 and the functional module 10 is turned on; when the second switch unit is turned off, the power supply circuit between the correspondingly connected power supply device 110 and the functional module 10 is turned off.

[0043] In some cases, only one of the multiple second switch units is in the on state, and the other second switch units are in the off state, thereby ensuring that only one power supply device 110 supplies power to the functional module 10 of the ranging device, thereby avoiding safety issues such as circuit failure and damage caused by power supply devices 110 with different working parameters participating in the power supply together.

[0044] In one embodiment, if Figure 3 As shown, the power circuit 100 further includes a control module 140, which is connected to the control end of the power switching module 130. The control module 140 is used to control the power switching module 130 to control the switching power supply device 110 to supply power to the functional module 10 of the ranging device.

[0045] Exemplarily, the control module 140 can output a switching instruction to the power switching module 130, which is used to instruct the power switching module 130 to turn on or off the power supply circuit between each power supply device 110 and the functional module 10, thereby switching the power supply device 110 that supplies power to the functional module 10 of the ranging device.

[0046] In one embodiment, if Figure 4 As shown, the power circuit 100 further includes a power detection module 151, the input end of the power detection module 151 is connected to the plurality of voltage protection modules 120, and the output end of the power detection module 151 is connected to the control module 140. The power detection module 151 is used to determine the remaining power of each power supply device 110 through the output voltage of each voltage protection module 120. The control module 140 is used to control the power switching module 130 according to the remaining power of each power supply device 110.

[0047] The power detection module 151 may include one or more microcoulomb detectors, current transformers, power detection chips, and other devices. For example, multiple power detection chips may be provided to be connected to each power supply device 110, respectively, and output the remaining power of each power supply device 110 to the control module 140. In some cases, the power detection module 151 may also calculate the remaining power of the battery by measuring the temperature change of the battery or calculating the energy change during the charging and discharging process.

[0048] It should be noted that after receiving the remaining power of each power supply device 110 , the control module 140 can control the power switching module 130 according to actual conditions, thereby achieving switching power supply of each power supply device 110 .

[0049] Exemplarily, when the ranging device is turned on, the control module 140 can determine the target power device corresponding to the maximum remaining power from the remaining power of each power device 110, and control the power switching module 130 to switch the target power device to supply power.

[0050] Exemplarily, when the remaining power of the power supply device 110 currently supplying power is less than or equal to the set remaining power, the control module 140 may also determine at least one target power supply device from other power supply devices 110 whose remaining power is greater than the set remaining power, select a target power supply device from the at least one target power supply device, and control the power switching module 130 to switch to the selected target power supply device for power supply.

[0051] It should be noted that the remaining power of each power supply device 110 is detected by the power detection module 151, and the power switching module 130 is controlled according to the remaining power of each power supply device 110 by the control module 140, so that the power supply device 110 can be flexibly switched to supply power to the functional module 10 of the ranging device according to actual conditions, and sufficient power can be provided for the ranging device without frequent battery replacement, which can greatly improve the battery life of the ranging device.

[0052] In one embodiment, if Figure 5 As shown, the power supply circuit 100 further includes a voltage detection module 152, the input end of the voltage detection module 152 is connected to the plurality of voltage protection modules 120, and the output end of the voltage detection module 152 is connected to the control module 140. The voltage detection module 152 is used to detect the output voltage of each voltage protection module 120. The control module 140 is used to control the power switching module 130 according to the output voltage of each voltage protection module 120.

[0053] It should be noted that the specific circuit of the voltage detection module 152 can be set according to actual conditions. For example, a transistor can be used to control the on and off of the voltage protection module 120. When the voltage is normal, the transistor is turned on to make the voltage protection module 120 pass, and when the voltage is undervoltage or overvoltage, the transistor is turned off to make the voltage protection module 120 open. The output voltage of the voltage protection module 120 can represent the output voltage of the power supply device 110. The control module 140 can determine the power status of the power supply device 110 based on the real-time detection of the output voltage of the voltage protection module 120, so as to control the power switching module 130 to switch the appropriate power supply device 110 to supply power to the functional module 10 of the ranging device.

[0054] Exemplarily, the control module 140 may include a battery management chip, which can determine the remaining power of the power supply device 110 based on the relevant value of the output voltage of the power supply device 110, thereby realizing the control of the power switching module 130. For details, please refer to the relevant examples of the aforementioned power detection module 151, which will not be elaborated in the embodiments of the present application.

[0055] In one embodiment, if Figure 6 As shown, the functional module 10 includes a human-computer interaction module 11, and the control module 140 is also connected to the human-computer interaction module 11. The human-computer interaction module 11 generates a corresponding power switching instruction based on the user's touch operation. The control module 140 is used to control the power switching module 130 according to the power switching instruction transmitted by the human-computer interaction module 11.

[0056] The human-computer interaction module 11 may include components such as buttons and display screens, and the user may perform touch operations on the human-computer interaction module 11 to enter a control interface and generate corresponding control instructions based on the control interface. The control interface may be, for example, a power selection interface, and the control instructions may be, for example, a power switching instruction, which is used to instruct the selection of a target power supply device from a plurality of power supply devices 110 for power supply.

[0057] It should be noted that after receiving the power switching instruction transmitted by the human-computer interaction module 11, the control module 140 controls the power switching module 130 based on the power switching instruction. For example, the control module 140 can generate a first switching instruction based on the power switching instruction, and the first switching instruction is used to instruct the power switching module 130 to turn off the power supply circuit between other power supply devices other than the target power supply device and the functional module 10, and to turn on the power supply circuit between the target power supply device and the functional module 10, so as to switch the target power supply device to supply power to the functional module 10 of the ranging device.

[0058] In one embodiment, the control module 140 includes a control chip. The control chip is used to control the human-computer interaction module 11 to output identification information of the power supply device 110 currently supplying power after the ranging device is turned on or the power supply device 110 is switched on.

[0059] The identification information of the power supply device 110 is used to identify the power supply device 110, and the identification information may include one or a combination of patterns, letters, text, and numbers. After the ranging device is turned on or the power supply device 110 is switched on, the control chip can determine the power supply device 110 currently powered. Therefore, the control chip can control the human-computer interaction module 11 so that the human-computer interaction module 11 outputs the identification information of the power supply device 110 currently powered, thereby informing the user of the power supply device 110 currently in use.

[0060] Exemplarily, when the remaining power of the selected target power supply device is less than or equal to the set remaining power, it is necessary to switch to other power supply devices for power supply. When switching to other power supply devices for power supply, the control chip in the control module 140 can output a power supply instruction to the human-computer interaction module 11, and the power supply instruction is used to instruct the human-computer interaction module 11 to output power supply information, and the power supply information includes the identification information of the power supply device currently supplying power.

[0061] In one embodiment, the human-computer interaction module 11 can also generate a power priority switching instruction based on the user's touch operation, and the power priority switching instruction is used to instruct the target power device to be used as the priority power supply in multiple power devices 110 for power supply; the control module 140 is used to select the target power device for power supply in the case of selecting the power device 110 according to the power priority switching instruction. For example, when the ranging device is turned on, the target power device is selected for power supply. Or, when switching the power device, the target power device is selected for power supply.

[0062] In one embodiment, the control module 140 is further used to generate power usage information of the power supply device, and the human-computer interaction module 11 is used to output the power usage information, and the power usage information is used to indicate the power supply device currently in use, thereby informing the user which power supply device is currently in use. For example, when the ranging device is turned on, the power usage information is output through the human-computer interaction module 11, and the power usage information can be output through the display.

[0063] In one embodiment, the control module 140 is further used to generate power switching information of the power supply device, and the human-computer interaction module 11 is used to output the power switching information, and the power switching information is used to indicate that the power supply device has switched. For example, when the power of a power supply device is lower than the set power, the control module 140 generates a power switching instruction to control the power switching module 130 to switch the power supply circuit. The control module 140 also sends the power switching instruction to the human-computer interaction module 11, and the human-computer interaction module 11 outputs the power switching information based on the power switching instruction.

[0064] In one embodiment, if Figure 7 As shown, the multiple power supply devices 110 include a rechargeable battery 111 and a disposable battery 112. The rechargeable battery 111 may be one or more. Similarly, the disposable battery 112 may be one or more. The rechargeable battery 111 may include a rechargeable lithium battery, and the disposable battery 112 may include a button battery such as a CR2 battery. Through the rechargeable battery 111 and the disposable battery 112, a dual-power core concept can be provided to the user, thereby providing the user with a more intelligent power usage strategy and method.

[0065] The control module 140 can be used to control the power switching module when the remaining power of the rechargeable battery 111 is greater than or equal to the first remaining power threshold and the external power source is not connected, so that the rechargeable battery 111 supplies power to the functional module 10. The control module 140 can also be used to control the power switching module when the remaining power of the rechargeable battery 111 is less than or equal to the second remaining power threshold and the external power source is not connected, so that the disposable battery 112 supplies power to the functional module 10.

[0066] It should be noted that the first remaining power threshold may be greater than or equal to the second remaining power threshold, and the specific values ​​of the first remaining power threshold and the second remaining power threshold may be set according to actual conditions. For example, the first remaining power threshold may be set to 50%, and the second remaining power threshold may be set to 10%. Of course, both the first remaining power threshold and the second remaining power threshold may be set to 10%. The external power supply not being connected may mean that the external power supply is not connected to the power supply circuit 100, or it may mean that the external power supply is not connected to the charging interface of the ranging setting. The external power supply can be used to charge the rechargeable battery 111, and can be used to supply power to the functional module 10.

[0067] It should be noted that in most cases, the user can choose the rechargeable battery 111 for power supply. In extreme cases, such as in a field environment, due to the lack of charging conditions, the disposable battery 112 can be used for power supply. Under normal circumstances, the user does not need to install the disposable battery 112 such as a CR2 battery. The disposable battery 112 is used only when the power of the rechargeable battery 111 is exhausted and it is inconvenient to charge.

[0068] Of course, some people do not like charging, and it is also possible to always use disposable batteries 112. In some environments, it is also possible to only install rechargeable batteries 111 or disposable batteries 112 according to actual needs, and it is not necessary to install two sets of power supply devices all the time.

[0069] In one embodiment, if Figures 7 to 10 As shown, the voltage protection module 120 may include a first voltage protection module 121 and a second voltage protection module 122. The first voltage protection module 121 is connected between the rechargeable battery 111 and the power switching module 130, and the second voltage protection module 122 is connected between the disposable battery 112 and the power switching module 130. The specific circuits of the first voltage protection module 121 and the second voltage protection module 122 may be set according to actual conditions. In the case where the plurality of power supply devices 110 include the rechargeable battery 111 and the disposable battery 112, the specific circuits of the first voltage protection module 121 and the second voltage protection module 122 may be different.

[0070] In one embodiment, if Figures 8 to 10 As shown, the power circuit 100 further includes a charging module 160 , an input end of the charging module 160 is used to connect to a charging interface 101 , the charging interface 101 is used to connect to an external power source 30 , and an output end of the charging module 160 is connected to a rechargeable battery 111 .

[0071] The charging interface may be a USB charging interface, such as a Type-C interface, or other types of interfaces. The external power source 30 may be an energy storage device, which may include a rechargeable battery or a non-rechargeable battery. The external power source 30 may also include a power grid, a generator, a solar cell, etc.

[0072] It should be noted that, when the power supply device 110 is a disposable battery 112, there is no need to provide a charging interface 101 and a charging module 160 for the disposable battery 112. When the power supply device 110 is a rechargeable battery 111, the external power source 30 is connected via the charging interface 101, and the rechargeable battery 111 can be charged via the charging module 160, thereby ensuring that the power supply of the rechargeable battery 111 can be replenished, and there is no need to frequently replace the battery, thereby improving the endurance of the ranging device.

[0073] In one embodiment, the charging interface 101 can also be connected to the functional module 10 of the power circuit 100 , so that when the charging interface 101 is connected to the external power source 30 , the external power source 30 can supply power to the functional module 10 of the ranging device.

[0074] For example, Fig. 9As shown, the power supply circuit 100 also includes a switch module 102, a first end of the switch module 102 is connected to the charging interface 102, and a second end of the switch module 102 is connected to a voltage protection module 120 corresponding to the rechargeable battery 111. When the charging interface 101 is not connected to the external power supply 30, the switch module 102 is turned off to avoid voltage loss of the rechargeable battery 111. When the charging interface 101 is connected to the external power supply 30, the switch module 102 is turned on, thereby turning on the power supply circuit from the external power supply 30 to the functional module 10, so that the external power supply 30 supplies power to the functional module 10 of the ranging device.

[0075] For example, Fig.10 As shown, the power supply circuit 100 also includes a voltage protection module 120 connected to the charging interface 101, and the voltage protection module 120 is also connected to the power switching module 130. When the charging interface 101 is connected to the external power supply 30, the power switching module 130 can conduct the power supply circuit from the external power supply 30 to the functional module 10, and disconnect the power supply circuit from each power supply device to the functional module 10, so that the external power supply 30 supplies power to the functional module 10 of the ranging device, reducing the power consumption of each power supply device 110.

[0076] The power supply circuit 100 of the above embodiment includes a plurality of power supply devices 110, a plurality of voltage protection modules 120 and a power switching module 130, wherein each voltage protection module 120 is connected to each power supply device 110 in a one-to-one correspondence, and the voltage protection module 120 is used to provide voltage protection. The input end of the power switching module 130 is connected to each voltage protection module 120, and the output end of the power switching module 130 is used to connect the functional module 10 of the ranging device; the power switching module 130 is used to control the power supply circuit between each power supply device 110 and the functional module 10 to switch the power supply device to supply power to the functional module 10 of the ranging device. By supplying power to the functional module 10 of the ranging device through a plurality of power supply devices 110, and by switching the power supply device 110 for power supply, sufficient power can be provided for the ranging device, so that there is no need to frequently replace the battery, which can greatly improve the endurance of the ranging device.

[0077] Please refer to Fig.11 , Fig.11 A schematic block diagram of a distance measuring device provided in an embodiment of the present application.

[0078] like Fig.11 As shown, the distance measuring device 300 includes: a functional module 310 and a power circuit 320 , and the power circuit 320 is used to supply power to the functional module 310 .

[0079] There may be one or more functional modules 310 , and the power supply circuit 320 may supply power to one or more functional modules 310 .

[0080] Exemplarily, the functional module 310 may include a laser emission module, a laser detection module, a data operation and processing module, a human-computer interaction module, a communication module, etc. The functional module 310 may be used to implement a ranging function. It should be noted that the functional module 310 may be the functional module 10 of the above embodiment.

[0081] Exemplarily, the power supply circuit 320 includes multiple power supply devices, which may include one or more energy storage units, such as one or more batteries. Multiple batteries may be connected in series or in parallel to form the power supply device. It should be noted that the power supply circuit 320 may be the power supply circuit 100 of the above-mentioned embodiment.

[0082] In one embodiment, the distance measuring device 300 may be a distance measuring device, a distance measuring telescope, etc. When the distance measuring device 300 is a distance measuring telescope, the functional module of the distance measuring device 300 may further include a telescopic optical system, and the telescopic optical system may include an objective lens assembly, an eyepiece assembly, and a housing assembly. In some examples, the telescopic optical system may further include a prism assembly or a lens steering system.

[0083] In one embodiment, the ranging device 300 includes a ranging telescope, the ranging telescope includes a telescopic optical system, the power supply device of the power circuit 320 includes a rechargeable battery and a disposable battery, and the ranging telescope also includes a first battery compartment and a second battery compartment arranged in the telescopic optical system.

[0084] The first battery compartment is used to load rechargeable batteries, and the first battery compartment is built into the telescopic optical system; the second battery compartment is used to load disposable batteries, and the compartment cover of the second battery compartment is detachably configured as a part of the outer shell of the telescopic optical system. Since the rechargeable battery does not need to be removed after installation, it can be built into any position of the telescopic optical system. Since there is a need to replace disposable batteries, the compartment cover of the second battery compartment is detachably configured as a part of the outer shell of the telescopic optical system. When the disposable battery needs to be replaced, the compartment cover of the second battery compartment as a part of the outer shell can be opened, thereby facilitating the replacement operation of the disposable battery.

[0085] It should be noted that since the space utilization rate of the telescopic optical system in the ranging telescope is not high, the first battery compartment and the second battery compartment can be arranged in the telescopic optical system, so that the first battery compartment and the second battery compartment that occupy a larger space in the power supply circuit 320 can be installed in the telescopic optical system, making the structural layout more compact, which can greatly improve the space utilization rate of the ranging telescope.

[0086] For example, Fig.12As shown, the ranging telescope includes a telescopic optical system 311, and the power supply device of the power supply circuit 320 includes a rechargeable battery and a disposable battery. The ranging telescope also includes a first battery compartment 321 and a second battery compartment 322 arranged in the telescopic optical system 311. The first battery compartment 321 is used to load rechargeable batteries, and the first battery compartment 321 is built into the telescopic optical system; the second battery compartment 322 is used to load disposable batteries, and the second battery compartment 322 is detachably arranged on the inner side of the outer shell of the telescopic optical system 311.

[0087] In one embodiment, the power circuit 320 includes a charging module and a charging interface disposed in the telescopic optical system; wherein the charging interface is exposed from the housing of the telescopic optical system, and the charging interface is connected to the first battery compartment through the charging module.

[0088] It should be noted that the charging interface is used to connect an external power source, and the charging interface may be a USB charging interface, such as a Type-C interface. When the first battery compartment is used to load a rechargeable battery, the external power source may be connected via the charging interface, and the rechargeable battery may be charged via the charging module, thereby ensuring that the power supply of the rechargeable battery can be replenished, thereby improving the battery life of the ranging device 300.

[0089] For example, Fig.12 As shown, the power circuit 320 includes a charging module (not shown in the figure) and a charging interface 323 arranged in the telescopic optical system 311; wherein the charging interface 323 is exposed from the shell arranged in the telescopic optical system 311, and the charging interface 323 is connected to the first battery compartment 321 through the charging module.

[0090] The ranging device 300 described in the above embodiment includes a battery module 310 and a power circuit 320, wherein the power circuit 320 includes the power circuit 100 described in the above embodiment, and the functional module 310 of the ranging device 300 is powered by multiple power supply devices in the power circuit 320, and the power supply device can be switched for power supply, which can provide sufficient power supply for the ranging device 300, thereby eliminating the need for frequent battery replacement, and can greatly improve the battery life of the ranging device 300.

[0091] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0092] The disclosure above provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present application. Any insubstantial changes and replacements made by those skilled in the art on the basis of the present application all belong to the scope of protection claimed in the present application.

[0093] In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides various specific examples of processes and materials, but those of ordinary skill in the art may recognize the application of other processes and / or the use of other materials.

Claims

1. A power supply circuit of a distance measuring device, characterized in that: The power supply circuit is used to supply power to the functional modules of the ranging device; the power supply circuit includes a plurality of power supply devices, a plurality of voltage protection modules and a power switching module; Each of the voltage protection modules is connected to each of the power supply devices in a one-to-one correspondence, and the voltage protection module is used to provide voltage protection; The input end of the power switching module is connected to each of the voltage protection modules, and the output end of the power switching module is used to connect the functional modules; the power switching module is used to turn on or off the power supply circuit between the power supply device and the functional module to switch the power supply device to supply power to the functional module.

2. The power supply circuit according to claim 1, characterized in that The power supply circuit further comprises a control module, which is connected to a control end of the power supply switching module; the control module is used to control the power supply switching module to switch the power supply device to supply power to the functional module.

3. The power supply circuit according to claim 2, characterized in that: The power supply circuit further comprises a power detection module, the input end of the power detection module is connected to the plurality of voltage protection modules, and the output end of the power detection module is connected to the control module; The power detection module is used to determine the remaining power of each of the power supply devices through the output voltage of each of the voltage protection modules; The control module is used to control the power switching module according to the remaining power of each of the power supply devices.

4. The power supply circuit according to claim 2, characterized in that: The functional module includes a human-computer interaction module, and the control module is also connected to the human-computer interaction module; The human-computer interaction module generates a corresponding power switching instruction based on the user's touch operation; The control module is used to control the power switching module according to the power switching instruction transmitted by the human-computer interaction module.

5. The power supply circuit according to claim 4, characterized in that: The control module includes a control chip; the control chip is used to control the human-computer interaction module to output identification information of the power supply device currently supplying power after the ranging device is turned on or the power supply device is switched to supply power.

6. The power supply circuit according to any one of claims 2 to 5, characterized in that: The plurality of power supply devices include rechargeable batteries and disposable batteries; The control module is used to control the power switching module when the remaining power of the rechargeable battery is greater than or equal to a first remaining power threshold and the external power source is not connected, so that the rechargeable battery supplies power to the functional module; or The control module is used to control the power switching module when the remaining power of the rechargeable battery is less than or equal to a second remaining power threshold and the external power source is not connected, so that the disposable battery supplies power to the functional module.

7. The power supply circuit according to claim 6, characterized in that: The power supply circuit also includes a charging module, an input end of the charging module is used to connect to a charging interface, the charging interface is used to connect to an external power source, and an output end of the charging module is connected to the rechargeable battery.

8. A distance measuring device, characterized in that: include: Functional modules; as well as The power supply circuit according to any one of claims 1 to 7, wherein the power supply circuit is used to supply power to the functional module.

9. The distance measuring device according to claim 8, characterized in that: The distance measuring device comprises a distance measuring telescope, the distance measuring telescope comprises a telescopic optical system, and the power supply device of the power supply circuit comprises a rechargeable battery and a disposable battery; The ranging telescope also includes a first battery compartment and a second battery compartment arranged in the telescopic optical system; wherein the first battery compartment is used to load the rechargeable battery, and the first battery compartment is built into the telescopic optical system; the second battery compartment is used to load the disposable battery, and the compartment cover of the second battery compartment is detachably configured as a partial outer shell of the telescopic optical system.

10. The distance measuring device according to claim 9, characterized in that: The power supply circuit includes a charging module and a charging interface arranged in the telescopic optical system; wherein the charging interface is exposed from the housing of the telescopic optical system, and the charging interface is connected to the first battery compartment through the charging module.

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