Method and system for pairing NVR (Network Video Recorder) and camera based on halo wifi (Wireless Fidelity)

Abstract

The invention discloses a method and a system for pairing an NVR (Network Video Recorder) and a camera based on a halo wifi (Wireless Fidelity), and the method comprises the steps: when a country code of the NVR in a halo wifi set is modified online, the NVR sends the modified country code to the camera in the halo wifi set; when the camera receives the modified country code, a center frequency point list, a bandwidth list, maximum sending power and a maximum duty ratio of the camera are modified according to the modified country code; and the NVR inquires the country code of the camera, and if the country code of the camera is a modified country code, the center frequency point list, the bandwidth list, the maximum sending power and the maximum duty ratio of the NVR are modified, so that pairing connection between the NVR and the camera is realized. According to the method, the country code of the NVR is modified online, so that the camera synchronously receives the modified country code sent by the NVR, pairing connection between the NVR and the camera is realized, and the problem of communication incompatibility caused by country code difference when a halo wifi set is used in different countries or regions is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless set pairing, and in particular to a method and system for pairing an NVR and a camera based on halow wifi. Background Art

[0002] When the factory mass produces the HALOW WiFi kit, in order to avoid the problem of cross-pairing confusion caused by multiple workstations entering the button pairing at the same time, the camera needs to support SSID and PSK pairing given by the USB flash drive or SD card, and multiple cameras and 1 NVR can be paired at the same time.

[0003] However, when users deploy the manufactured Halow WiFi kit to the actual site, there will be problems with incorrect country code settings on the NVR. Since the laws and regulations of each country stipulate the central frequency list and bandwidth list of Halow WiFi, as well as the maximum transmission power and maximum duty cycle limit of each central frequency, it is required that the maximum transmission power and duty cycle of the Halow WiFi device cannot exceed the regulatory requirements of the location of the device.

[0004] Therefore, in order to solve the communication incompatibility problem caused by the difference in country codes when using the Halow WiFi kit, the solution adopted in the prior art is to remove the camera in the deployed Halow WiFi kit and modify the country codes of the NVR and the camera by manual button pairing. This method makes the pairing efficiency extremely low and affects the user experience. Summary of the invention

[0005] The embodiment of the present invention provides a method and system for pairing an NVR and a camera based on halow wifi, aiming to solve the problem of extremely low pairing efficiency caused by modifying the country codes of the NVR and the camera by manual key pairing in the prior art.

[0006] In a first aspect, an embodiment of the present invention provides a method for pairing an NVR and a camera based on halowwifi, comprising:

[0007] When the country code of the NVR in the halow wifi package is modified online, the NVR sends the modified country code to the camera in the halow wifi package;

[0008] When the camera receives the modified country code, it modifies its own center frequency list, bandwidth list, maximum transmission power and maximum duty cycle according to the modified country code, so that the camera's own country code is synchronously updated to the modified country code;

[0009] The NVR queries the country code of the camera. If the country code of the camera is the modified country code, the center frequency list, bandwidth list, maximum transmission power and maximum duty cycle of the NVR itself are modified to achieve pairing connection between the NVR and the camera.

[0010] Optionally, the halow wifi set has multiple cameras, and the NVR queries the country code of the camera. If the country code of the camera is the modified country code, the center frequency list, bandwidth list, maximum transmission power and maximum duty cycle of the NVR itself are modified to achieve pairing connection between the NVR and the camera, including:

[0011] Within a preset time threshold, if the country codes of all cameras in the halow wifi package are consistent with the modified country code, the center frequency list, bandwidth list, maximum transmission power and maximum duty cycle of the NVR itself are modified;

[0012] When the preset time threshold is exceeded, if the country codes of some cameras in the halow wifi set are consistent with the modified country code, and the country codes of some cameras are inconsistent with the modified country code, the center frequency list, bandwidth list, maximum transmission power and maximum duty cycle of the NVR itself will be modified, and the inconsistent cameras will be marked on the UI interface of the NVR to remind the user to pair them manually.

[0013] Optionally, when the camera receives the modified country code, the camera modifies its own center frequency list, bandwidth list, maximum transmission power and maximum duty cycle according to the modified country code, so that the camera's own country code is synchronously updated to the modified country code, including:

[0014] After receiving the modified country code, the camera in the halow wifi kit stores the modified country code locally;

[0015] The center frequency list, bandwidth list, maximum transmission power and maximum duty cycle of the camera itself are modified within a preset time threshold.

[0016] Optionally, when the country code of the NVR in the halow wifi package is modified online, the NVR sends the modified country code to the camera, including:

[0017] The NVR wakes up the camera once every preset time period; wherein the time period is less than a preset time threshold.

[0018] Optionally, when the country code of the NVR in the halow wifi package is modified online, the NVR sends the modified country code to the camera in the halow wifi package, further comprising:

[0019] When the camera is successfully awakened, the NVR sends the modified country code to the camera.

[0020] Optionally, the camera is provided with a pairing button, and when the country code of the NVR in the halowwifi package is modified online, before the step of the NVR sending the modified country code to the camera in the halowwifi package, the step includes:

[0021] When the pairing button is pressed, the camera enters the pairing state, the camera continuously modifies its own center frequency and bandwidth, and tries to connect to the NVR until it is connected to the NVR.

[0022] Optionally, when the country code of the NVR in the halow wifi package is modified online, before the step of the NVR sending the modified country code to the camera in the halow wifi package, the step further includes:

[0023] Storing the SSID and PSK of the NVR in a storage device, and connecting the storage device to the camera;

[0024] The camera obtains the SSID and PSK of the NVR through the storage device, and automatically connects to the NVR according to the SSID and PSK of the NVR.

[0025] Optionally, marking inconsistent cameras on the UI interface of the NVR to remind the user to pair them manually includes:

[0026] The camera stores the modified country code;

[0027] Restart the camera, and modify its own center frequency list, bandwidth list, maximum transmission power and maximum duty cycle according to the modified country code.

[0028] Optionally, the preset time threshold is 30 seconds.

[0029] In a second aspect, an embodiment of the present invention provides a system for pairing an NVR and a camera based on halowwifi, including:

[0030] A sending unit, used for, when the country code of the NVR in the halow wifi package is modified online, the NVR sends the modified country code to the camera in the halow wifi package;

[0031] An updating unit, configured to modify its own center frequency list, bandwidth list, maximum transmission power and maximum duty cycle according to the modified country code when the camera receives the modified country code, so that the camera's own country code is synchronously updated to the modified country code;

[0032] The pairing unit is used for the NVR to query the country code of the camera. If the country code of the camera is the modified country code, the center frequency list, bandwidth list, maximum transmission power and maximum duty cycle of the NVR itself are modified to achieve pairing connection between the NVR and the camera.

[0033] The embodiment of the present invention provides a method and system for pairing an NVR and a camera based on halow wifi, the method comprising: when the country code of the NVR in the halow wifi package is modified online, the NVR sends the modified country code to the camera in the halow wifi package; when the camera receives the modified country code, it modifies its own center frequency list, bandwidth list, maximum transmission power and maximum duty cycle according to the modified country code, so that the camera's own country code is synchronously updated to the modified country code; the NVR queries the country code of the camera, and if the country code of the camera is the modified country code, the center frequency list, bandwidth list, maximum transmission power and maximum duty cycle of the NVR itself are modified to achieve the pairing connection between the NVR and the camera. The present invention sends the modified country code to all connected cameras through the NVR, and after the camera receives the modified country code, it will update its own center frequency list, bandwidth list, maximum transmission power and maximum duty cycle parameters accordingly, so as to achieve the pairing connection between the NVR and the camera, and effectively solve the communication incompatibility problem caused by the difference in country codes when using halow wifi devices in different countries or regions. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0035] Figure 1 A flowchart of a method for pairing a NVR and a camera based on halow wifi provided by an embodiment of the present invention;

[0036] Figure 2 A schematic diagram of a sub-flow diagram of a method for pairing a NVR and a camera based on halow wifi provided in an embodiment of the present invention;

[0037] Figure 3 Another sub-flow diagram of a method for pairing a NVR and a camera based on halow wifi provided by an embodiment of the present invention;

[0038] Figure 4 Another sub-flow diagram of a method for pairing a NVR and a camera based on halow wifi provided by an embodiment of the present invention;

[0039] Figure 5 Another sub-flow diagram of a method for pairing a NVR and a camera based on halow wifi provided by an embodiment of the present invention;

[0040] Figure 6 A schematic block diagram of a system for pairing a NVR and a camera based on halow wifi provided by an embodiment of the present invention;

[0041] Figure 7 A schematic block diagram of subunits of a system for pairing an NVR and a camera based on halow wifi provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0044] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0045] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0046] See also Figure 1 , Figure 1 A flow chart of a method for pairing a NVR and a camera based on halow wifi provided by an embodiment of the present invention, the method comprising steps S101 to S103:

[0047] S101, when the country code of the NVR in the halow wifi package is modified online, the NVR sends the modified country code to the camera in the halow wifi package;

[0048] When the user deploys the configured halow wifi kit to the actual site, if the country code setting on the NVR is found to be incorrect, the country code on the NVR can be modified online. At the same time, the NVR will send the modified country code to the matching cameras to ensure that all connected cameras can know and adapt to the radio management rules from the new country or region.

[0049] It should be noted that, considering the halow wifi wireless communication adopted by NVR and camera, there is a possibility of packet loss. At the same time, the country code configuration parameters are very important. If the country code is not set correctly, there will be a problem that the configuration parameters exceed local regulations.

[0050] S102, when the camera receives the modified country code, it modifies its own center frequency list, bandwidth list, maximum transmission power and maximum duty cycle according to the modified country code, so that the country code of the camera itself is synchronously updated to the modified country code;

[0051] In this embodiment, if the country code is set incorrectly, there may be a problem that the maximum transmission power and duty cycle exceed local regulations.

[0052] When the camera receives the modified country code sent by the NVR, it will update its own central frequency list, bandwidth list, maximum transmission power, maximum duty cycle and other wireless parameters according to the modified country code information. These updates are to ensure that the camera can work normally under the rules of the modified country code, not violate local radio management regulations, and maintain good communication with the NVR. After the camera completes the configuration update, its own country code is also synchronized with the modified country code sent by the NVR.

[0053] In one embodiment, as shown in the figure, step S102 includes steps S201-S202:

[0054] S201, after receiving the modified country code, the camera in the halow wifi set stores the modified country code locally;

[0055] S202: Modify the center frequency list, bandwidth list, maximum transmission power and maximum duty cycle of the camera itself within a preset time threshold.

[0056] In this embodiment, the camera receives the modified country code sent by the NVR and stores it locally, and configures a switching time window. Usually, this time window is set to 30 seconds, that is, within 30 seconds of receiving the modified country code, the camera's center frequency list, bandwidth list, maximum transmission power and maximum duty cycle are modified.

[0057] S103, the NVR queries the country code of the camera. If the country code of the camera is the modified country code, the center frequency list, bandwidth list, maximum transmission power and maximum duty cycle of the NVR itself are modified to achieve pairing connection between the NVR and the camera.

[0058] In this embodiment, this step is to verify whether the camera has successfully received and applied the modified country code, and to ensure that the wireless connection between the NVR and the camera is stable and complies with local regulations.

[0059] Specifically, the NVR will actively query whether the camera's country code is updated to the modified country code. After completing the query, the NVR will also update its own center frequency list, bandwidth list, maximum transmission power, maximum duty cycle and other parameters accordingly to ensure communication compatibility with the camera.

[0060] Further, as described in the above step S202, the NVR needs to query whether the country code of the camera is the modified country code within the 30-second switching window, so that the camera and the NVR can be paired and connected according to the modified country code.

[0061] In one embodiment, if Figure 3 As shown, the step S103 includes steps S301 to S302:

[0062] S301, within a preset time threshold, if the country codes of all cameras in the halowwifi package are consistent with the modified country code, then modify the center frequency list, bandwidth list, maximum transmission power and maximum duty cycle of the NVR itself;

[0063] S302. When the preset time threshold is exceeded, if the country codes of some cameras in the halowwifi package are consistent with the modified country code and the country codes of some cameras are inconsistent with the modified country code, the center frequency list, bandwidth list, maximum transmission power and maximum duty cycle of the NVR itself are modified, and the inconsistent cameras are marked on the UI interface of the NVR to remind the user to pair them manually.

[0064] In one embodiment, the preset time threshold is 30 seconds.

[0065] In this embodiment, the country code on the NVR is modified online, and a maximum switching frequency time window of the NVR is set. The preset time threshold is 30 seconds. The camera switches the frequency in a 30-second time window after receiving the modified country code. That is, during this 30-second window, the center frequency and bandwidth of the camera and the NVR may be inconsistent, resulting in a connection failure between the NVR and the camera. After the 30-second time window, the NVR and the camera both set the center frequency and bandwidth according to the modified country code, and the camera and the NVR can be connected and paired with the modified country code.

[0066] Specifically, if the country codes of all cameras connected to the NVR within 30 seconds are consistent with the modified country code, it means that all cameras have received the modified country code, and the NVR can immediately modify the center frequency list, bandwidth list, maximum transmission power and maximum duty cycle according to the modified country code. After more than 30 seconds, although only some cameras' country codes are consistent with the modified country code (that is, some cameras' country codes are inconsistent with the modified country code), the NVR still modifies the center frequency list, bandwidth list, maximum transmission power and maximum duty cycle according to the modified country code. And for cameras whose country codes are inconsistent with the modified country code, they may be offline or powered off. After the NVR modifies its own center frequency list, bandwidth list, maximum transmission power and maximum duty cycle, these cameras will not be able to pair with the NVR later. It is necessary to mark the inconsistent cameras on the NVR UI interface to remind users to pair them manually.

[0067] In one embodiment, if Figure 4 As shown, the step S302 includes steps S401 to S402:

[0068] S401, the camera stores the modified country code;

[0069] S402: Restart the camera, and modify its own center frequency list, bandwidth list, maximum transmission power and maximum duty cycle according to the modified country code.

[0070] In this embodiment, before the NVR and the camera are paired according to the modified country code, the camera needs to store the modified country code first to avoid the camera restarting due to some abnormality during the switching window time between the NVR and the camera. If the camera needs to be restarted, since the camera has previously stored the modified country code, it can modify its own center frequency list, bandwidth list, maximum transmission power and maximum duty cycle according to the modified country code.

[0071] Furthermore, in one embodiment, the step S101 includes step S501:

[0072] S501. The NVR wakes up the camera once every preset time period; wherein the time period is less than a preset time threshold.

[0073] In this embodiment, when the country code of the NVR is modified online, all cameras connected to the NVR may be dormant, offline or powered off, but the NVR is not aware of the status of these cameras. Therefore, the NVR will first try to wake up all cameras, and wake them up once every preset time period, usually set the preset time period to 10 seconds, set a total of 3 attempts to wake up, each wake-up interval is 10 seconds, and send the modified country code to all successfully woken cameras, 3 times with an interval of 10 seconds each time.

[0074] It should be noted that the preset time period is less than the preset time threshold, that is, the interval time for each NVR to wake up the camera should be less than the time of the NVR maximum switching frequency time window. The purpose of this is to ensure that the NVR can query the status of the camera more frequently, so as to respond to any changes or errors more quickly and improve the user experience.

[0075] Furthermore, the step S101 further includes step S601:

[0076] S601, the NVR wakes up the camera once every preset time period; wherein, when the time period is less than a preset time threshold, when the camera is successfully woken up, the NVR sends a modified country code to the camera.

[0077] In this embodiment, each time the NVR wakes up the camera, it needs to synchronously send the modified country code to the camera to avoid the problem that the country code configured for the camera and the country code configured for the NVR are out of sync due to packet loss, resulting in the maximum transmission power and maximum duty cycle exceeding local regulations.

[0078] Furthermore, the camera is provided with a pairing button, and before executing the step S101, the process includes step S701:

[0079] S701. When the pairing button is pressed, the camera enters a pairing state, the camera continuously modifies its own center frequency and bandwidth, and tries to connect to the NVR until it is connected to the NVR.

[0080] In this embodiment, the camera and NVR enter the pairing state through the pairing button, and the camera continuously modifies its own center frequency and bandwidth and tries to connect to the NVR until it is connected to the NVR. At this time, the center frequency and bandwidth of the camera are consistent with the center frequency and bandwidth configured on the NVR, and the camera and NVR are paired and connected successfully.

[0081] Further, such as Figure 5 As shown, before executing step S101, steps S801 to S802 are also included:

[0082] S801, storing the SSID and PSK of the NVR in a storage device, and connecting the storage device to the camera;

[0083] S802: The camera obtains the SSID and PSK of the NVR through the storage device, and automatically connects to the NVR according to the SSID and PSK of the NVR.

[0084] In this embodiment, when the factory mass produces the HALOW WiFi set, multiple stations simultaneously perform set pairing of the NVR and the camera. If the NVRs of multiple stations enter the pairing state at the same time, and the camera presses the pairing button at this time, the camera may randomly pair with the NVR that enters the pairing state, which is not convenient for mass production. Considering that the SSID and PSK of the HALOW WiFi of different NVRs are different, the camera needs to support direct pairing through the SSID and PSK stored in the (storage device) USB disk or SD card. Write the SSID and PSK of the NVR at the current station into the USB disk or SD card, and then insert the USB disk or SD card into the camera at the current station. When the NVR does not enter the pairing state and the camera does not press the pairing button, the fixed SSID and PSK in the USB disk or SD card are used to achieve pairing of the camera and the NVR, avoiding the problem of cross-pairing confusion caused by multiple stations performing button pairing at the same time, and multiple cameras can be paired with one NVR at the same time.

[0085] In a specific application scenario, first, prepare a newly produced NVR and eight newly produced cameras, enter the pairing interface of the NVR, configure the country code, and press the pairing button for each camera to pair the NVR with the eight cameras.

[0086] Next, set two cameras to sleep, wake up two cameras, set two cameras to offline, and power off two cameras. Enter the pairing interface of the NVR, modify the country code, wait for 30 seconds, and check whether the NVR and the two dormant cameras and the two awakened cameras are paired and connected using the modified country code. At the same time, put the two cameras offline online, power on the two awakened cameras, and check whether these four cameras are paired and connected with the NVR. At the same time, take down these four cameras, pair them by pressing buttons, and check whether they can be paired and connected with all the NVRs.

[0087] like Figure 6 As shown, an embodiment of the present invention further provides a system 900 for pairing an NVR and a camera based on halow wifi, including a sending unit 901, an updating unit 902, and a pairing unit 903.

[0088] The sending unit 901 is used for, when the country code of the NVR in the halow wifi package is modified online, the NVR sends the modified country code to the camera in the halow wifi package;

[0089] An updating unit 902 is configured to, when the camera receives the modified country code, modify its own center frequency list, bandwidth list, maximum transmission power and maximum duty cycle according to the modified country code, so that the camera's own country code is synchronously updated to the modified country code;

[0090] The pairing unit 903 is used for the NVR to query the country code of the camera. If the country code of the camera is the modified country code, the center frequency list, bandwidth list, maximum transmission power and maximum duty cycle of the NVR itself are modified to achieve the pairing connection between the NVR and the camera.

[0091] In one embodiment, if Figure 7 As shown, the pairing unit 903 includes:

[0092] The modification unit 1001 is used to modify the center frequency list, bandwidth list, maximum transmission power and maximum duty cycle of the NVR itself if the country codes of all cameras in the halow wifi package are consistent with the modified country code within a preset time threshold;

[0093] The modification and marking unit 1002 is used to modify the center frequency list, bandwidth list, maximum transmission power and maximum duty cycle of the NVR itself when the preset time threshold is exceeded, if the country codes of some cameras in the halow wifi set are consistent with the modified country code and the country codes of some cameras are inconsistent with the modified country code, and mark the inconsistent cameras on the UI interface of the NVR to remind the user to pair them manually.

[0094] The HALOW WiFi-based NVR and camera pairing system provided in the embodiment of the present invention sends a modified country code to all connected cameras through the NVR. After receiving the modified country code, the camera will update its own center frequency list, bandwidth list, maximum transmission power, maximum duty cycle and other parameters accordingly, thereby realizing the pairing connection between the NVR and the camera, and effectively solving the communication incompatibility problem caused by the difference in country codes when using HALOW WiFi devices in different countries or regions.

[0095] In the several embodiments provided by the present invention, it should be understood that the disclosed systems and methods can be implemented in other ways. For example, the system embodiments described above are only schematic, for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation, and units with the same function may be combined into one unit, for example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.

[0096] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present invention.

[0097] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0098] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A method for pairing NVR and camera based on halow wifi, characterized in that: include: When the country code of the NVR in the halow wifi package is modified online, the NVR sends the modified country code to the camera in the halow wifi package; When the camera receives the modified country code, it modifies its own center frequency list, bandwidth list, maximum transmission power and maximum duty cycle according to the modified country code, so that the camera's own country code is synchronously updated to the modified country code; The NVR queries the country code of the camera. If the country code of the camera is the modified country code, the center frequency list, bandwidth list, maximum transmission power and maximum duty cycle of the NVR itself are modified to achieve pairing connection between the NVR and the camera.

2. The method for pairing a NVR and a camera based on halow wifi according to claim 1, characterized in that: The halow wifi set has multiple cameras, and the NVR queries the country code of the camera. If the country code of the camera is the modified country code, the center frequency list, bandwidth list, maximum transmission power and maximum duty cycle of the NVR itself are modified to achieve pairing connection between the NVR and the camera, including: Within a preset time threshold, if the country codes of all cameras in the halow wifi package are consistent with the modified country code, the center frequency list, bandwidth list, maximum transmission power and maximum duty cycle of the NVR itself are modified; When the preset time threshold is exceeded, if the country codes of some cameras in the halow wifi set are consistent with the modified country code, and the country codes of some cameras are inconsistent with the modified country code, the center frequency list, bandwidth list, maximum transmission power and maximum duty cycle of the NVR itself will be modified, and the inconsistent cameras will be marked on the UI interface of the NVR to remind the user to pair them manually.

3. The method for pairing a NVR and a camera based on halow wifi according to claim 1, characterized in that: When the camera receives the modified country code, it modifies its own center frequency list, bandwidth list, maximum transmission power and maximum duty cycle according to the modified country code, so that the camera's own country code is synchronously updated to the modified country code, including: After receiving the modified country code, the camera in the halow wifi kit stores the modified country code locally; The center frequency list, bandwidth list, maximum transmission power and maximum duty cycle of the camera itself are modified within a preset time threshold.

4. The method for pairing a NVR and a camera based on halow wifi according to claim 2, characterized in that: When the country code of the NVR in the halow wifi package is modified online, the NVR sends the modified country code to the camera in the halow wifi package, including: The NVR wakes up the camera once every preset time period; wherein the time period is less than a preset time threshold.

5. The method for pairing a NVR and a camera based on halow wifi according to claim 4, characterized in that: When the country code of the NVR in the halow wifi package is modified online, the NVR sends the modified country code to the camera in the halow wifi package, and further includes: When the camera is successfully awakened, the NVR sends the modified country code to the camera.

6. The method for pairing a NVR and a camera based on halow wifi according to claim 1, characterized in that: The camera is provided with a pairing button. When the country code of the NVR in the halow wifi package is modified online, before the step of the NVR sending the modified country code to the camera in the halow wifi package, the method includes: When the pairing button is pressed, the camera enters the pairing state, the camera continuously modifies its own center frequency and bandwidth, and tries to connect to the NVR until it is connected to the NVR.

7. The method for pairing a NVR and a camera based on halow wifi according to claim 1, characterized in that: When the country code of the NVR in the halow wifi package is modified online, before the step of the NVR sending the modified country code to the camera in the halow wifi package, the method further includes: Storing the SSID and PSK of the NVR in a storage device, and connecting the storage device to the camera; The camera obtains the SSID and PSK of the NVR through the storage device, and automatically connects to the NVR according to the SSID and PSK of the NVR.

8. The method for pairing a NVR and a camera based on halow wifi according to claim 2, characterized in that: The marking of inconsistent cameras on the UI interface of the NVR to remind the user to pair them manually includes: The camera stores the modified country code; Restart the camera, and modify its own center frequency list, bandwidth list, maximum transmission power and maximum duty cycle according to the modified country code.

9. The method for pairing a NVR and a camera based on halow wifi according to claim 2, characterized in that: The preset time threshold is 30 seconds.

10. A system for pairing NVR and camera based on halow wifi, characterized in that: include: A sending unit, configured to, when the country code of the NVR in the halow wifi package is modified online, cause the NVR to send the modified country code to the camera in the halow wifi package; An updating unit, configured to modify its own center frequency list, bandwidth list, maximum transmission power and maximum duty cycle according to the modified country code when the camera receives the modified country code, so that the camera's own country code is synchronously updated to the modified country code; The pairing unit is used for the NVR to query the country code of the camera. If the country code of the camera is the modified country code, the center frequency list, bandwidth list, maximum transmission power and maximum duty cycle of the NVR itself are modified to achieve pairing connection between the NVR and the camera.

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