WO2023005398A1 - 基于定向天线可转动的摄像机组件 - Google Patents
基于定向天线可转动的摄像机组件 Download PDFInfo
- Publication number
- WO2023005398A1 WO2023005398A1 PCT/CN2022/095604 CN2022095604W WO2023005398A1 WO 2023005398 A1 WO2023005398 A1 WO 2023005398A1 CN 2022095604 W CN2022095604 W CN 2022095604W WO 2023005398 A1 WO2023005398 A1 WO 2023005398A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- directional antenna
- antenna
- motor
- directional
- control
- Prior art date
Links
- 230000006854 communication Effects 0.000 claims abstract description 119
- 238000004891 communication Methods 0.000 claims abstract description 118
- 238000000034 method Methods 0.000 claims description 20
- 230000004308 accommodation Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 10
- 238000012544 monitoring process Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 7
- 230000005855 radiation Effects 0.000 description 6
- 230000003203 everyday effect Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 238000001303 quality assessment method Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
Definitions
- the present application relates to the field of security monitoring, in particular to a rotatable camera assembly based on a directional antenna.
- video images are usually collected by camera devices installed at different monitoring positions, and then the data of the video images are uploaded to a remote server in a wireless network transmission manner.
- some camera devices installed in remote locations often experience disconnection problems due to poor wireless network signals, which makes the network stability of the camera device poor, which in turn causes the collected video image data to be unable to be uploaded normally, affecting monitoring quality.
- the application provides an improved directional antenna-based rotatable camera assembly, which has good network stability.
- the present application provides a rotatable camera assembly based on a directional antenna, including: a video image acquisition device and an antenna assembly; the antenna assembly includes: a directional antenna; a motor connected to the directional antenna for driving the directional antenna to rotate , to change the orientation of the directional antenna; a wireless circuit, electrically connected to the directional antenna; and a controller assembly, electrically connected to the wireless circuit and the motor, for controlling the rotation of the motor to control the directional antenna
- the controller component is used to control the wireless circuit to communicate with the base station through the directional antenna to determine when the directional antenna is facing the direction
- Corresponding communication performance values and according to the corresponding communication performance values when the directional antenna faces a plurality of the directions, control the rotation of the motor to make the directional antenna reach the first performance threshold toward the communication performance values
- the direction of the video image acquisition device is connected to the wireless circuit; when the directional antenna rotates to the direction of the first performance threshold, the video
- the application provides a method for controlling the rotation direction of a directional antenna, which is applied to the controller assembly in the antenna assembly in the camera assembly, the camera assembly also includes a video image acquisition device, the antenna assembly also includes a directional antenna, and the directional A motor connected to the antenna, and a wireless circuit connected to the directional antenna; wherein, the motor is used to drive the directional antenna to rotate to change the direction of the directional antenna, and the controller component is electrically connected to the wireless circuit and The motor; the video image acquisition device is connected to the wireless circuit, and the collected video images are sent through the directional antenna; the method includes: controlling the rotation of the motor, so as to control the directional antenna to turn toward multiple direction; when the directional antenna is facing any of the directions, control the wireless circuit to communicate with the base station through the directional antenna, and determine the corresponding communication performance value when the directional antenna is facing this direction; according to the directional antenna When facing the communication performance values corresponding to the plurality of directions, the motor is controlled to rotate so as to make the directional antenna face the
- the rotatable camera assembly based on a directional antenna includes a video image acquisition device and an antenna assembly, wherein the antenna assembly includes a directional antenna, a motor, a wireless circuit and a controller assembly, and the video image acquisition device is connected to the wireless circuit , when the directional antenna rotates to the direction of the first performance threshold, the video image collection device sends the collected video images through the directional antenna.
- the directional antenna can increase the communication distance with the base station, that is to say, the directional antenna has a strong electromagnetic wave transmitting or receiving capability, which makes the effective communication distance between the directional antenna and the base station longer, and the gain is larger, and the transmission power and reception high sensitivity.
- the controller component drives the directional antenna to rotate by controlling the rotation of the motor, which can adjust the direction of the directional antenna, so that the directional antenna faces the direction where the communication performance value reaches the first performance threshold, which can ensure that the directional antenna has better communication quality with the base station
- the direction of the directional antenna is matched with the direction with better communication quality, so that the network stability of the camera component is better, and the video image acquisition device in the camera component can send the collected video with a stable network images, thereby improving the monitoring quality of the camera assembly.
- FIG. 1 is a schematic structural diagram of a camera component in a related art
- FIG. 2 is a circuit block diagram of an antenna assembly provided by an embodiment of the present application.
- FIG. 3 is a schematic diagram of a camera assembly provided by an embodiment of the present application.
- Fig. 4 is the control flowchart of camera assembly among Fig. 3;
- Fig. 5 is the radiation contrast diagram of the omnidirectional antenna of the camera assembly of Fig. 1 and the directional antenna of the camera assembly in Fig. 3;
- Fig. 6 is a schematic flowchart of a method for controlling the rotation direction of a directional antenna provided by an embodiment of the present application.
- FIG. 1 is a schematic structural diagram of a camera assembly 100 in the related art.
- a camera assembly 100 includes a camera device 11 , a SOC (System on Chip, system-on-chip) 12 , a 4G module 13 and an omnidirectional antenna 14 .
- the camera device 11 is used to collect video images of the monitoring area.
- SOC 12 is used for controlling camera device 11 to work, and receives the data of the video image that camera device 11 outputs.
- the SOC 12 is connected to the camera device 11 and the 4G module 13, and the 4G module 13 is connected to the omnidirectional antenna 14.
- the 4G module 13 performs code stream transmission and data communication with the SOC 12 through protocols such as USB (Universal Serial Bus, Universal Serial Bus), as shown in Figure 1 USB_DM (USB Data Minus, USB data negative signal) and USB_DP (USB Data Positive, USB data positive signal) in, and send or receive signal through omnidirectional antenna 14, communicate with base station 15.
- USB Universal Serial Bus
- USB_DM USB Data Minus, USB data negative signal
- USB_DP USB Data Positive, USB data positive signal
- the data of the video image collected by the camera device 11 can be transmitted to the remote server through the SOC 12, the 4G module 13, the omnidirectional antenna 14 and the base station 15. 12. Issue an instruction to perform operations such as control and upgrade on the imaging device 11 .
- the camera assembly 100 can be installed in places such as highways, forests, and remote mountainous areas for high-altitude observation. However, the number of base stations 15 in these places is relatively small, and the communication distance with the base station 15 is limited due to the low gain of the omnidirectional antenna 14. Deployment of the camera assembly 100 is carried out according to actual requirements. For example, in some locations where the camera assembly 100 needs to be deployed, since these locations are far away from the base station 15, exceeding the communication distance between the omnidirectional antenna 14 and the base station 15, the camera assembly 100 cannot be connected to the Internet, and the collected video images cannot be uploaded to the remote server, so that the corresponding area cannot be monitored. In addition, the deployed camera assembly 100 may also have a problem of poor network stability. For example, the camera assembly 100 in some locations has only one base station 15 within its communicable distance range. If the base station 15 fails, the camera assembly 100 may be disconnected.
- An embodiment of the present application provides a rotatable camera assembly based on a directional antenna, including: a video image acquisition device and an antenna assembly.
- FIG. 2 is a circuit block diagram of an antenna assembly 200 provided by an embodiment of the present application.
- the antenna assembly 200 can ensure that the camera assembly has better network stability. It can be understood that the antenna assembly 200 can also be applied to other devices other than the camera assembly, such as vehicle equipment, wireless TV and so on. In this application, the application of the antenna assembly 200 to a camera assembly is taken as an example for illustration.
- the antenna assembly 200 includes a directional antenna 21 , a motor 22 , a wireless circuit 23 and a controller assembly 24 .
- the antenna assembly 21 includes at least two directional antennas 21 facing in different directions.
- the directional antenna 21 refers to having strong electromagnetic wave transmitting or receiving capability in a specific direction or several specific directions, wherein the above-mentioned specific direction is the direction toward which the directional antenna 21 is facing and/or deviates from the direction toward which the directional antenna 21 is facing Antennas that are less capable of transmitting and receiving electromagnetic waves in directions that do not exceed a preset angular threshold.
- the directional antenna 21 has strong electromagnetic wave transmitting or receiving capabilities in the direction it is facing and the direction that deviates from the direction it is facing does not exceed a threshold value, and the electromagnetic wave transmitting and receiving capabilities in other directions are relatively weak.
- the directional antenna 21 when the directional antenna 21 is facing the southeast direction, the directional antenna 21 has a strong electromagnetic wave transmitting or receiving capability in the southeast direction and a direction that deviates from the southeast direction by no more than 80 degrees; if the directional antenna 21 is adjusted to face the southwest direction, then The directional antenna 21 has a strong ability to transmit or receive electromagnetic waves in the southwest direction and in directions that deviate from the southwest direction by no more than 80 degrees.
- the directional antenna 21 has a relatively high gain and a long communication distance, and can communicate with the base station 15 which is far away from it. In this way, in some places where the number of base stations 40 is small, the camera components are less limited by the location of the base stations 40, and the camera components can be deployed according to actual needs.
- the motor 22 is connected with the directional antenna 21 for driving the directional antenna 21 to rotate so as to change the direction of the directional antenna 21 .
- the wireless circuit 23 is electrically connected to the directional antenna 21 and communicates with the base station 40 through the directional antenna 21 .
- the wireless circuit 23 is used to convert the message (such as image and video data) that the camera assembly needs to send to the base station 40 into an electromagnetic wave with a certain transmission frequency, and send it to the base station 40 through the directional antenna 21; or convert the electromagnetic wave received by the directional antenna 21 into Electrical signals, control camera components, etc.
- the wireless circuit 23 may be a wireless communication chip, such as a chip for realizing wireless 4G communication function, a chip for realizing 3G communication function, and a chip for realizing 5G communication function.
- the motor 22 drives the directional antenna 21 to rotate.
- the direction that the directional antenna 21 faces is adjusted so that it faces the direction of the base station 40 to ensure better communication quality between the directional antenna 21 and the base station 40 .
- the camera assembly is installed in a certain position in a remote mountain forest area, there is a base station 40 in the northeast and southwest directions of the location.
- the base station 40 in the northeast direction communicates, and the remote server is connected through the base station 40 in the northeast direction.
- the motor 22 can be controlled to drive the directional antenna 21 to rotate at this time, so that the directional antenna 21 faces the southwest direction, communicates with the base station 40 in the southwest direction, and passes through the base station 40 in the southwest direction. Connect to a remote server.
- the controller component 24 is electrically connected to the wireless circuit 23 and the motor 22 .
- the controller assembly 24 uses When the control motor 22 rotates to control the directional antenna 21 to face multiple directions in turn, when the directional antenna 21 faces any direction, the controller assembly 24 is used to control the wireless circuit 23 to communicate with the base station 40 through the directional antenna 21 to determine the direction of the directional antenna 21.
- the communication performance value corresponding to this direction is used as the communication performance value corresponding to this direction, that is, the controller component 24 is used to control the wireless circuit 23 to communicate with the base station 40 through the directional antenna 21, and determine that the directional antenna 21 is facing this direction When the corresponding communication performance value.
- the communication performance value corresponding to each direction is used to represent the communication quality between the directional antenna 21 and the base station 40 when the directional antenna 21 faces the direction, and the larger the communication performance value, the better the communication quality, and thus the better the network stability. good.
- the motor 22 is controlled to rotate so that the directional antenna 21 faces the direction where the communication performance value reaches the first performance threshold.
- the communication performance value may be a value used to indicate whether the communication quality between the directional antenna 21 and the base station 40 is good or bad.
- the camera component is connected to a remote server through an LTE (Long Term Evolution, long-term evolution) network.
- LTE Long Term Evolution, long-term evolution
- the controller component 24 is used to control the wireless circuit 23 to send a network registration message to the base station 40 through the directional antenna 21 to perform network registration, that is, after the directional antenna 21 faces any direction , the controller component 24 can control the wireless circuit 23 to send a network registration message to the base station 40 to register the camera component in the network of the base station 21, wherein the wire circuit 23 sends the network registration message to the base station 40 through the directional antenna 21.
- the controller assembly 24 After the controller assembly 24 determines that the directional antenna 21 faces any direction in a plurality of directions, it can issue a network registration command to the wireless circuit 23, and the wireless circuit 23 sends a network registration message to the base station 40 to request registration into the network, thereby Establish a network connection between the remote server and the camera assembly.
- the network registration time is about 5 seconds to 10 seconds.
- the controller component 24 After the controller component 24 issues a network registration command, it can issue a query command to query whether the network registration is successful.
- the maximum duration of the query command may be greater than the network registration time, for example, 30 seconds. Wherein, the highest duration of the query instruction is the duration of the query validity period after the controller component 24 sends the query command.
- the registration is successful, otherwise, if the controller component 24 does not inquire about the successful network registration message from the wireless circuit 23 within the valid period of the inquiry, it determines that the network registration fails.
- the controller component 24 does not query the message that the network registration is successful from the wireless circuit 23, it can be determined that in the corresponding direction, the directional antenna 21 cannot search for a normal working base station 40, and the network registration fails. , the camera component cannot establish a network connection with the remote server. In this case, the controller component 24 can control the motor 22 to drive the directional antenna 21 to face the next direction, and continue to detect the communication quality between the directional antenna 21 and the base station 40 when the directional antenna 21 faces the next direction.
- the controller assembly 24 inquires from the wireless circuit 23 the message that the network registration is successful, it can be determined that the network registration is successful, and the controller assembly 24 can read from the wireless circuit 23 when the directional antenna 21 faces the direction.
- the reference signal received power and signal-to-noise ratio are also called RSRP (Reference Signal Receiving Power) value, and the signal-to-noise ratio is also called SINR (Signal to Interference plus Noise Ratio) value.
- the controller component 24 may determine the communication performance value when the directional antenna 21 faces the direction according to the received power of the reference signal and the signal-to-noise ratio based on a weighting algorithm.
- the RSRP value accounts for 70% of the communication quality assessment
- the SINR value accounts for 30% of the communication quality assessment.
- the sum of the RSRP value multiplied by 70% and the SINR value multiplied by 30% can be used as a directional antenna 21 Corresponding communication performance value when facing this direction.
- the weight of each parameter can be set according to actual needs. For example, if more emphasis is placed on the signal-to-noise ratio in the communication process, the weight of the SINR value can be greater than the weight of the RSRP value.
- the communication performance value is determined according to the weight algorithm, and the communication quality can be evaluated from multiple aspects according to actual needs, making the evaluation of the communication quality more objective and accurate.
- the controller component 24 selects the direction with the best performance as the orientation of the directional antenna 21 according to the communication performance values when the directional antenna 21 is oriented in each direction.
- the above-mentioned first performance threshold can be set as the maximum value among the plurality of communication performance values determined when the timing antenna 21 faces multiple directions, that is, the direction that the timing antenna 21 is facing when the communication performance value is maximum is the last direction of the timing antenna 21. direction. It can be understood that, in these embodiments, the first performance threshold is not a fixed value, and is determined based on the traffic performance value detected each time when the directional antenna 21 is facing each direction.
- the first performance threshold can also be set to a fixed value, and any direction that the timing antenna 21 is facing when the communication performance value reaches the first performance threshold can be used as the last direction of the timing antenna 21. direction. For example, when the timing antenna 21 faces direction A and direction B, the communication performance values are both greater than the first performance threshold. In this case, one of direction A and direction B can be used as the final orientation of the timing antenna 21.
- the foregoing first performance threshold may also include an RSRP threshold and an SINR threshold. If the RSRP value when the directional antenna 21 faces one direction reaches the RSRP threshold and the SINR value reaches the SINR threshold, this direction may be used as the last direction the directional antenna 21 faces.
- the controller component 24 controls the rotation of the motor 22 to make the directional antenna 21 face the direction in which the communication performance value reaches the first performance threshold
- the controller component 24 is also used to determine the corresponding position when the directional antenna 21 faces the direction again.
- Communication performance value if the communication performance value determined again is lower than the second performance threshold value, re-control the rotation of the motor 22 to control the directional antenna 21 to face multiple directions in turn, and according to the corresponding communication when the directional antenna 21 faces the multiple directions
- the performance value is to control the rotation of the motor 22 to make the directional antenna 21 face the direction in which the communication performance value reaches the first performance threshold.
- the controller assembly 24 controls the rotation of the motor 22 to make the directional antenna 21 face the direction in which the communication performance value reaches the first performance threshold, it can determine when the directional antenna 21 faces the direction at a preset time interval (for example, 0:00 every day). communication performance value.
- a preset time interval for example, 0:00 every day.
- the first performance threshold and the second performance threshold may be equal.
- the first performance threshold and the second performance threshold may not be equal.
- Multiple performance thresholds can be set based on how good the communication quality is. For example, the communication quality can be divided into five levels: excellent, good, medium, poor, and very poor, and the corresponding performance thresholds for each level are set as follows:
- the RSRP value is greater than -85dBm, and the SINR value is greater than 25, indicating that when the directional antenna 21 is facing this direction, the communication quality level with the base station 40 is "excellent";
- the RSRP value is less than or equal to -85dBm and greater than -95dBm, and the SINR value is less than or equal to 25 and greater than 16, indicating that when the directional antenna 21 is facing this direction, the communication quality level with the base station 40 is "good". ";
- the RSRP value is less than or equal to -95dBm and greater than -105dBm, and the SINR value is less than or equal to 16 and greater than 11, indicating that when the directional antenna 21 is facing this direction, the communication quality level with the base station 40 is "medium”. ";
- the RSRP value is less than or equal to -105dBm and greater than -115dBm, and the SINR value is less than or equal to 11 and greater than 3, indicating that when the directional antenna 21 is facing this direction, the communication quality level with the base station 40 is "poor". ";
- the RSRP value is less than -115dBm, and the SINR value is less than 3, indicating that when the directional antenna 21 is facing this direction, the communication quality level with the base station 40 is "extremely poor".
- the first performance threshold may be a performance threshold when the communication quality is excellent
- the second performance threshold may be a performance threshold when the communication quality is extremely bad or bad.
- the RSRP value is -60dBm and the SINR value is 30 when the timing antenna 21 is detected facing direction A at 0:00 on the first day.
- the RSRP value is -200dBm
- the SINR value is 2. It is necessary to re-control the rotation of the motor 22 to control the directional antenna 21 to face multiple directions in turn, and according to the corresponding communication when the directional antenna 21 faces the multiple directions
- the performance value is to control the rotation of the motor 22 to make the directional antenna 21 face the direction in which the communication performance value reaches the first performance threshold.
- the controller component 24 is used to control the number of rotation steps of the motor to control the direction that the directional antenna 21 faces.
- the camera assembly can set the direction towards which the directional antenna 21 is facing as the initial direction during power-on initialization or factory initialization, and based on the determined initial direction, by controlling the number of rotation steps of the motor, the rotation angle of the motor is controlled, thereby controlling the directional antenna 21 rotation angle and the direction that the directional antenna 21 faces. For example, assuming that based on the initial direction, every 20 degrees of rotation of the directional antenna 21 is a new direction, and every step of the motor rotation is 0.5 degrees, then the controller component 24 can control the motor to rotate 40 steps from the initial direction to reach the first direction . And so on, in order to reach other directions.
- the direction the directional antenna 21 is facing can be controlled more precisely.
- the above-mentioned motor may be a stepping motor.
- the motor 22 includes a DC brushless motor
- the directional antenna 21 is provided with a position encoder 29, wherein the position encoder is used to compile and convert the position signal or data into a signal form that can be used for communication, transmission and storage device of.
- the position encoder 29 is used to determine the orientation of the directional antenna 21 , so the position encoder 29 may be a code wheel.
- the position encoder 29 rotates with the rotation of the directional antenna 21 , and the controller assembly 24 is electrically connected to the position encoder 29 for controlling the direction of the directional antenna 21 according to the signal output by the position encoder 29 .
- the electrical signals output by the position encoder 29 are different. Similar to the relevant description of controlling the number of rotation steps of the motor, when the camera assembly is powered on or initialized from the factory, the direction that the directional antenna 21 is facing is set as the initial direction, and when the directional antenna 21 is located at this position, the position encoder 29 outputs The electric signal of is used as the initial direction electric signal.
- the controller component 24 controls the rotation of the DC brushless motor to drive the directional antenna 21 to rotate, according to the change of the electrical signal output by the position encoder 29 , the position to which the directional antenna 21 rotates and the direction it is facing are judged.
- the directional antenna 21 rotates to any one of the multiple directions required (for example, a direction 20 degrees away from the initial direction)
- the brushless DC motor is controlled to stop so as to detect the communication quality in this direction.
- the effect of controlling the direction of the directional antenna 21 by the position encoder 29 and the DC brushless motor is that the accuracy of the position encoder 29 can reach 0.1 degrees, and the displacement change of the directional antenna 21 relative to the initial position can be accurately recorded, so that the orientation The rotation angle and direction of the antenna 21 are precisely controlled.
- the directional antenna 21 can increase the communication distance with the base station 40 compared to the omnidirectional antenna, And the gain is large, the transmitting power and receiving sensitivity are high.
- the directional antenna 21 can communicate with the base station 40 that is far away, so that when the product (such as a camera assembly) that includes the antenna assembly 200 is selected for location, it is not necessary to be subject to the influence of the base station 40. The location is limited, the choice of product location is more flexible, and the network stability of the product is better.
- controller component 24 drives directional antenna 21 to rotate by controlling motor 22 to rotate, can adjust the direction that directional antenna 21 faces, makes directional antenna 21 reach the direction of the first performance threshold toward communication performance value, can guarantee that directional antenna 21 is directed toward and Base station 40 has the direction of better communication quality, has realized the direction that directional antenna 21 faces and has the matching of the direction with better communication quality, makes when communication with directional antenna 21 breaks down or other reasons, directional antenna 21 can be adjusted in time. Networking is performed through other base stations 40 in the direction facing, so that the network stability of the camera assembly including the antenna assembly 200 is better.
- the antenna assembly 200 further includes an impedance matching circuit 26 .
- the impedance matching circuit 26 is connected between the wireless circuit 23 and the directional antenna 21 for realizing impedance matching between the wireless circuit 23 and the directional antenna 21 and reducing power loss when the wireless circuit 23 outputs radio frequency signals to the directional antenna 21 .
- the antenna assembly 200 further includes an antenna control circuit 27, and the antenna control circuit 27 includes a switch circuit 271.
- the wireless circuit 23 passes the switch circuit 271 is connected with the at least two directional antennas 21, and the controller assembly 24 is connected with the switch circuit 271, and the controller assembly 24 is used for sending to the radio frequency frequency of the directional antenna 21 according to the wireless circuit 23, and each directional antenna 21 is received from the base station 40. Control the switch circuit 271 so that the wireless circuit 23 communicates with one of the directional antennas 21, so as to ensure good impedance matching between the wireless circuit 23 and the directional antenna 21.
- the controller component 24 can control the switch circuit 271 to connect the first directional antenna 21 to the wireless circuit 23 to ensure good impedance matching characteristics.
- the controller component 24 can select a directional antenna with the smallest difference between the received radio frequency frequency and the radio frequency frequency transmitted by the wireless circuit 23 from each directional antenna 21 according to the radio frequency received by each directional antenna 21 from the base station 40.
- the antenna 21 is used as a directional antenna 21 communicated with the wireless circuit.
- the antenna assembly 200 further includes a frequency detection circuit 25, and the frequency detection circuit 25 is connected between the switch circuit 271 and the impedance matching circuit 26, and between the impedance matching circuit 26 and the directional antenna 21, for detecting The RF frequency output by the wireless circuit 23 and the RF frequency received by the directional antenna 21 from the base station 40, that is to say, the frequency detection circuit 25 can be electrically connected with the switch circuit 271 and the impedance matching circuit 26, wherein the frequency detection circuit 25 and the switch circuit 271 is electrically connected, and is used to detect the radio frequency output of the wireless circuit 23 after the switch circuit 271 is turned on, and the connection position of the electrical connection between the frequency detection circuit 25 and the impedance matching circuit 26 may include the impedance matching circuit and the wireless antenna 21
- the connection terminal (not shown in FIG.
- the antenna control circuit 27 also includes a switch control circuit 272 , and the controller component 24 is respectively connected to the switch circuit 271 and the frequency detection circuit 25 through the switch control circuit 272 .
- the frequency detection circuit 25 sends the radio frequency frequency that the wireless circuit 23 output that detects and the radio frequency frequency that the directional antenna 21 receives from the base station 40 to the controller assembly 24 through the switch control circuit 272, and the controller assembly 24 determines that it needs to communicate with the wireless circuit. After connecting the directional antenna 21 with 23, send a control message to the switch control circuit 272, and the switch control circuit 272 controls the switch circuit 271 to make the wireless circuit 23 communicate with the directional antenna 21 that needs to be connected.
- the antenna-based assembly 200 further includes a motor drive circuit 28 .
- the motor drive circuit 28 is connected to the controller component 24 and the motor 22 respectively, and the controller component 24 controls the rotation of the motor 22 by controlling the motor drive circuit 28 .
- FIG. 3 is a schematic diagram of a camera assembly 300 provided by an embodiment of the present application.
- the camera assembly 300 includes the antenna assembly 200 in FIG. 2 and a video image acquisition device 311 .
- the video image acquisition device 311 is connected to the wireless circuit 23; when the directional antenna 21 rotates to the direction of the first performance threshold, the video image acquisition device 311 transmits the collected data through the directional antenna 21 video image.
- the video image collection device 311 can collect video images, connect to the wireless circuit 23 , communicate with the base station 40 through the wireless circuit 23 , and upload the collected video images to a remote server through the directional antenna 21 .
- the video image acquisition device 311 includes a camera 3111 and an acquisition controller 3112 .
- the camera 3111 is used to collect video images
- the collection controller 3112 is connected to the wireless circuit 23 and the camera 3111 .
- the collection controller 3112 uploads the video images collected by the camera 3111 to the remote server through the wireless circuit 23 .
- the camera assembly 300 further includes a first housing 312 and a second housing 321 .
- the video image acquisition device 311 is arranged in the accommodation space enclosed by the first casing 312, the antenna assembly 200 is arranged in the accommodation space enclosed by the second casing 321, and the first casing 312 and the second casing 321 can rotate relatively ground connection.
- the video image capture device 311 is disposed in the accommodation space surrounded by the first housing 312 means that the video image capture device 311 can be installed in the inner space of the first housing 312 .
- the antenna assembly 200 is disposed in the receiving space surrounded by the second casing 321 means that the antenna assembly 200 can be installed in the inner space of the second casing 321 .
- the first housing 312 may be disposed on the first rotating body 31, the second housing 321 may be disposed on the second rotating body 32, and the first rotating body 31 and the second rotating body 32 may be relatively rotatably connected. That is to say, the first rotating body 31 is connected to the second rotating body 32, and the first rotating body 31 and the second rotating body 32 can rotate relatively, so that when the first rotating body 31 and the second rotating body 32 rotate relatively, Drive the first housing 312 and the second housing 321 to rotate relatively.
- the interference between the antenna assembly 200 and the video image acquisition device 311 is small, which can reduce the degree of interference of the directional antenna 21 by the video image acquisition device 311, and improve the communication quality between the directional antenna 21 and the base station 40.
- the second housing 321 is provided with an opening 322, and the directional antenna 21 extends from the accommodation space enclosed by the second housing 321 to outside the accommodation space enclosed by the second housing 321 through the opening 322, and the motor 22 It includes a horizontal control motor and a vertical control motor.
- the horizontal control motor is used to drive the second housing 321 to rotate horizontally to drive the directional antenna 21 to rotate horizontally.
- the vertical control motor is used to connect the directional antenna 21 to drive the directional antenna 21 to rotate vertically.
- the lateral control motor drives the directional antenna 21 to rotate laterally by driving the second casing 321 to rotate laterally, so that the directional antenna 21 faces different directions;
- the longitudinal control motor drives the directional antenna 21 to rotate longitudinally, so as to avoid the directional antenna 21 from being blocked by obstacles , affecting the communication quality between the directional antenna 21 and the base station 40 .
- the longitudinal control motor can drive the directional antenna 21 to rotate within the range of 0 degrees to 15 degrees in the longitudinal direction.
- the camera assembly 300 may further include the transmission device 221 shown in FIG. 2 .
- the motor 22 drives the second casing 321 and the directional antenna 21 to rotate through the transmission device 221 .
- FIG. 4 is a control flow diagram of the camera assembly 300 in FIG. 3 .
- the control flow diagram is applicable to the controller assembly 24 in the antenna assembly 200 in the camera assembly 300, including steps S41 to S49.
- step S40 the camera component is powered on to start a self-check.
- the self-check may be started at a set time point during the normal working process of the camera component, such as 0 o'clock every day.
- Step S41 recording the current direction of the directional antenna 21 as the initial direction.
- the controller component 24 can judge the current direction of the directional antenna 21 according to the electrical signal output by the position encoder 29, and record the direction as the initial direction.
- the controller component 24 may not need to perform any operations.
- Step S42 controlling the directional antenna 21 to rotate 20 degrees, and sending a network registration command to the wireless circuit.
- the controller assembly 24 detects the electrical signal of the position encoder 29 in real time during the rotation process of the directional antenna 21 driven by the DC brushless motor. After the signal determines that the directional antenna 21 rotates 20 degrees relative to the initial direction, the DC brushless motor is controlled to stop driving the directional antenna 21 to rotate.
- the controller component 24 controls the angle of each rotation of the directional antenna 21 by controlling the number of steps the motor advances.
- Step 43 check whether the network registration of the device is successful.
- the controller component 24 detects whether the network registration of the device is successful in the direction to which the directional antenna 21 is facing. For details, please refer to the related description of the antenna component 200 in FIG. 2 , which will not be repeated here. If the camera component successfully registers with the network in the direction that the directional antenna 21 is facing, go to step S44; otherwise, go to step S42.
- Step S44 sending a query command to the wireless circuit 23, reading the RSRP value and the SINR value from the wireless circuit 23, and storing them.
- the controller component 24 may establish a storage area for each direction, for storing the corresponding RSRP value and SINR value when the directional antenna 21 is facing each direction. For example, when the directional antenna 21 faces direction A, if the network registration in direction A is successful, after the controller component 24 reads the RSRP value and the SINR value from the wireless circuit 23, it will store the read RSRP value and the SINR value in the direction A corresponding storage area.
- Step S45 judging whether to read RSRP values and SINR values in all directions.
- the RSRP value and SINR value in all directions refer to the RSRP value and SINR value in all directions where network registration is successful.
- the controller component 24 needs to control the directional antenna 21 to face a total of 18 directions, and in the 18 directions, control the directional antenna 21 to send a network registration command, and if the network registration is successful, obtain the corresponding RSRP value and SINR value.
- the controller component 24 can count once after the timing antenna 21 rotates to one direction.
- step S46 For the RSRP value and SINR value in the successful direction, execute step S46; if the RSRP value and SINR value in all directions have not been read, execute step S42.
- Step S46 determine the communication performance value in each direction according to the RSRP value and the SINR value in each direction.
- the communication performance values in each direction reference may be made to the related description of the antenna assembly in FIG. 2 , which will not be repeated here.
- Step S47 moving the timing antenna 21 to the direction where the communication performance value is maximum.
- Step S48 judging whether the communication performance value of the direction in which the timing antenna 21 is currently facing is lower than a threshold.
- the controller component 24 can re-read the RSRP value and the SINR value when the timing antenna 21 is facing the current direction from the wireless circuit 23 at a preset time point, such as 0 o'clock every day, and calculate the corresponding communication performance value. If the communication performance value is not lower than the threshold, execute step S49; if the communication performance value is lower than the threshold, execute step S41.
- Step S49 controlling the timing antenna 21 to continue to face the current direction.
- FIG. 5 is a radiation contrast diagram of the omnidirectional antenna 14 of the camera assembly 100 in FIG. 1 and the directional antenna 21 of the camera assembly 300 in FIG. 3 .
- the camera assembly 300 includes two directional antennas 21, curves S51 and S52 are respectively the radiation patterns of the two directional antennas 21 facing one direction; the camera assembly 100 includes an omnidirectional antenna 14, and curve S53 is the omnidirectional antenna 14. Radiation pattern towards antenna 14. It can be seen from FIG. 5 that the gain of the two directional antennas 21 of the camera assembly 300 is greater and the radiation range is wider; the gain of the omnidirectional antenna 14 of the camera assembly 100 is smaller and the radiation range is narrower.
- the camera assembly 300 including the antenna assembly 200 drives the directional antenna 21 to rotate through the motor 22, and the controller assembly 24 judges the communication performance value of the directional antenna 21 to control the motor 22 to drive the directional antenna 21 toward the communication performance value exceeding In the direction of the first performance threshold, the communication quality between the camera component 300 and the base station 40 is higher, and the network stability is better.
- the embodiment of the present application also provides a method for controlling the rotation direction of the directional antenna.
- the camera assembly also includes a video image acquisition device
- the antenna assembly also includes a directional antenna, a motor connected to the directional antenna, and a wireless circuit connected to the directional antenna; wherein the motor is used to drive
- the directional antenna rotates to change the orientation of the directional antenna, the controller component is electrically connected to the wireless circuit and the motor; the video image acquisition device is connected to the wireless circuit, and sends Gathered video images; methods comprising:
- the directional antenna can be controlled to face multiple directions sequentially by controlling the number of rotation steps of the motor.
- the directional antenna is provided with a position encoder, and the position encoder rotates with the rotation of the directional antenna, and the controller assembly is electrically connected to the position encoder, the output of the position encoder can be Signal to control the directional antenna to face multiple directions in turn.
- controlling the wireless circuit to communicate with the base station through the directional antenna, and determining the corresponding communication performance value when the directional antenna faces the direction may include: controlling the wireless circuit to send a network registration message to the base station through the directional antenna, For network registration; if the wireless circuit network registration is successful, read the reference signal received power and signal-to-noise ratio from the wireless circuit when the directional antenna is facing this direction; according to the reference signal received power and signal-to-noise ratio, determine when the directional antenna is facing this direction communication performance value.
- the above-mentioned determination of the communication performance value of the directional antenna facing the direction according to the received power of the reference signal and the signal-to-noise ratio may include: determining the direction of the directional antenna according to the received power of the reference signal and the signal-to-noise ratio based on a weight algorithm The communication performance value in this direction.
- the antenna assembly further includes an antenna control circuit, and at least two directional antennas facing in different directions, the antenna control circuit includes a switch circuit, the wireless circuit is connected to the at least two directional antennas through the switch circuit, and the control tor assembly is electrically connected to the switching circuit,
- the antenna orientation control method provided in the present application can also control the switch circuit according to the radio frequency sent by the wireless circuit to the directional antenna and the radio frequency received by each directional antenna from the base station, so that the wireless circuit is oriented to one of the directional antennas. Antenna connected.
- the antenna direction control method may further include: determining that the directional antenna faces the direction again If the communication performance value determined again is lower than the second performance threshold, re-control the rotation of the motor to control the directional antenna to face multiple directions in turn, and according to the corresponding The communication performance value, controlling the rotation of the motor to make the directional antenna face the direction where the communication performance value reaches the first performance threshold.
- the controller component drives the directional antenna to rotate by controlling the rotation of the motor, and can adjust the direction of the directional antenna so that the directional antenna faces the direction where the communication performance value reaches the first performance threshold, which can ensure that the direction of the directional antenna is consistent with that of the base station.
- the direction with better communication quality realizes the matching of the direction of the directional antenna and the direction with better communication quality, so that the network stability of the rotatable camera assembly based on the directional antenna is better, and the video image in the camera assembly
- the acquisition device can send the acquired video images through a stable network, thereby improving the monitoring quality of the camera components.
- each embodiment in this specification is described in a related manner, the same and similar parts of each embodiment can be referred to each other, and each embodiment focuses on the differences from other embodiments.
- the description is relatively simple, and for the related parts, please refer to the part of the description of the embodiment of the camera assembly.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
一种基于定向天线可转动的摄像机组件，包括：视频图像采集装置和天线组件；天线组件包括定向天线、电机、无线电路和控制器组件。电机与定向天线连接，用于带动定向天线转动，使定向天线朝向不同方向；无线电路与定向天线电连接；控制器组件，电连接无线电路和电机，用于控制电机转动朝向通信性能值达到第一性能阈值的方向，视频图像采集装置与无线电路连接；在定向天线转动至第一性能阈值的方向时，视频图像采集装置通过定向天线发送采集到的视频图像。
Description
本申请要求于2021年07月30日提交中国专利局、申请号为202110875557.X发明名称为“基于定向天线可转动的电子设备和监控设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
本申请涉及安防监控领域，尤其涉及一种基于定向天线可转动的摄像机组件。
在视频监控技术领域，通常是由设置在不同监控位置的摄像装置进行视频图像的采集，然后将视频图像的数据以无线网络传输的方式上传到远端服务器。但一些设置在偏远位置的摄像装置，由于无线网络信号较差的原因，常常出现掉线的问题，使得摄像装置的网络稳定性较差，进而导致采集到的视频图像数据无法正常上传，影响监控质量。
发明内容
本申请提供一种改进的基于定向天线可转动的摄像机组件，网络稳定性好。
本申请提供一种基于定向天线可转动的摄像机组件，包括：视频图像采集装置和天线组件；所述天线组件包括：定向天线；电机，与所述定向天线连接，用于带动所述定向天线转动，以改变所述定向天线的朝向；无线电路，与所述定向天线电连接；及控制器组件，电连接所述无线电路和所述电机，用于控制所述电机转动来控制所述定向天线依次朝向多个方向，在所述定向天线朝向任一所述方向时，所述控制器组件用于控制所述无线电路通过所述定向天线与基站通信，以确定所述定向天线朝向该方向时对应的通信性能值，并根据所述定向天线朝向多个所述方向时分别对应的所述通信性能值，控制所述电机转动来使所述定向天线朝向所述通信性能值达到第一性能阈值的方向；所述视频图像采集装置与所述无线电路连接；在所述定向天线转动至所述第一性能阈值的方向时，所述视频图像采集装置通过所述定向天线发送采集到的视频图像。
本申请提供一种定向天线转动方向的控制方法，应用于摄像机组件内天线组件中的控制器组件，所述摄像机组件还包括视频图像采集装置，所述天线组件还包括定向天线、与所述定向天线连接的电机、与所述定向天线连接的无线电路；其中，所述电机用于带动所述定向天线转动，以改变所述定向天线的朝向，所述控制器组件电连接所述无线电路和所述电机；所述视频图像采集装置与所述无线电路连接，通过所述定向天线发送采集到的视频图像；所述方法包括：控制所述电机转动，以控制所述定向天线依次朝向多个方向；在所述定向天线朝向任一所述方向时，控制所述无线电路通过所述定向天线与基站通信，并确定所述定向天线朝向该方向时对应的通信性能值；根据所述定向天线朝向多个所述方向时分别对应的所述通信性能值，控制所述电机转动来使所述定向天线朝向所述通信性能值达到第一性能阈值的方向。
本申请的一些实施例中，基于定向天线可转动的摄像机组件包括视频图像采集装置和天线组件，其中，天线组件包括定向天线、电机、无线电路和控制器组件，视频图像采集装置与无线电路连接，在定向天线转动至第一性能阈值的方向时，视频图像采集装置通过 定向天线发送采集到的视频图像。定向天线可以增加与基站的通信距离，也就是说，定向天线具有较强的电磁波发射或接收能力，使得定向天线与基站之间的有效的通信距离更远，且增益较大，发射功率和接收灵敏度高。同时，控制器组件通过控制电机转动，带动定向天线转动，可以调整定向天线朝向的方向，使定向天线朝向通信性能值达到第一性能阈值的方向，可以保证定向天线朝向与基站具有较好通信质量的方向，实现了定向天线朝向的方向与具有较好通信质量的方向的匹配，从而使得摄像机组件的网络稳定性较好，摄像机组件中的视频图像采集设备能够以稳定的网络发送采集到的视频图像，进而提升了摄像机组件的监控质量。
为了更清楚地说明本申请实施例和现有技术的技术方案，下面对实施例和现有技术中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是一种相关技术中摄像机组件的架构示意图；
图2是本申请的一个实施例提供的天线组件的电路框图；
图3是本申请的一个实施例提供的摄像机组件的示意图；
图4是图3中摄像机组件的控制流程图；
图5是图1的摄像机组件的全向天线与图3中的摄像机组件的定向天线的辐射对比图；
图6是本申请的一个实施例提供的定向天线转动方向的控制方法的流程示意图。
为使本申请的目的、技术方案、及优点更加清楚明白，以下参照附图并举实施例，对本申请进一步详细说明。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
图1是一种相关技术中摄像机组件100的架构示意图。
参见图1，摄像机组件100包括摄像装置11、SOC(System on Chip，系统级芯片)12、4G模块13和全向天线14。摄像装置11用于采集监控区域的视频图像。SOC 12用于控制摄像装置11工作，并接收摄像装置11输出的视频图像的数据。SOC 12连接摄像装置11和4G模块13，4G模块13连接全向天线14。4G模块13通过USB(Universal Serial Bus，通用串行总线)等协议与SOC12进行码流传输、数据通信，例如图1中的USB_DM(USB Data Minus，USB数据负信号)和USB_DP(USB Data Positive，USB数据正信号)，并通过全向天线14发送或接收信号，与基站15通信。摄像装置11采集的视频图像的数据可以通过SOC12、4G模块13、全向天线14和基站15，传输到远程服务器，同时，远程服务器也可以通过基站15、全向天线14、4G模块13和SOC 12，下发指令对摄像装置11执行控制、升级等操作。
摄像机组件100可安装在高速、森林、偏远山区等地方进行高空瞭望。但这些地方的基站15数量较少，且又由于全向天线14增益低，与基站15的通信距离受限，摄像机组 件100的安装位置，受基站15的位置限制，导致在这些地方可能不能按照实际需求进行摄像机组件100的部署。比如在一些需要部署摄像机组件100的位置，由于这些位置距离基站15的距离较远，超过了全向天线14与基站15的通信距离，摄像机组件100无法联网，采集到的视频图像无法上传到远程服务器，从而无法对相应区域进行监控。另外，部署的摄像机组件100也可能存在网络稳定性不好的问题。比如一些位置的摄像机组件100，在其可通信的距离范围内只有一个基站15，若该基站15故障，该摄像机组件100则存在掉线的风险。
本申请实施例提供一种基于定向天线可转动的摄像机组件，包括：视频图像采集装置和天线组件。
图2是本申请的一个实施例提供的天线组件200的电路框图，该天线组件200可以保证摄像机组件具有较好的网络稳定性。可以理解的是，天线组件200也可以应用于摄像机组件之外的其他设备，比如车载设备、无线电视等。本申请以天线组件200应用于摄像机组件为例进行说明。
参见图2，天线组件200包括定向天线21、电机22、无线电路23和控制器组件24。一种实现方式中，上述天线组件21包括至少两个朝向不同方向的定向天线21。其中，定向天线21指在一个特定方向或几个特定方向具有较强的电磁波发射或接收能力，其中，上述特定方向为定向天线21所朝向的方向和/或与定向天线21所朝向的方向偏离不超过预设角度阈值的方向，而在其他方向上发射和接收电磁波的能力较弱的天线。在本实施例中，定向天线21在其所朝向的方向以及与其所朝向的方向偏离不超过阈值的方向上具有较强的电磁波发射或接收能力，在其他方向上的电磁波发射和接收能力较弱。比如，定向天线21朝向东南方向时，则定向天线21在东南方向以及与东南方向偏离不超过80度的方向上，电磁波发射或接收能力较强；若将定向天线21调整为朝向西南方向，则定向天线21在西南方向以及与西南方向偏离不超过80度的方向上，电磁波发射或接收能力较强。根据定向天线21的工作原理可知，定向天线21具有较高的增益，通信距离远，可以与其距离较远的基站15通信。如此，在一些基站40数量较少的地方，摄像机组件受基站40位置的限制较小，可以按照实际需要进行摄像机组件的部署。
电机22与定向天线21连接，用于带动定向天线21转动，以改变定向天线21的朝向。无线电路23与定向天线21电连接，通过定向天线21与基站40通信。无线电路23用于将摄像机组件需要发送给基站40的消息(比如图像视频数据)转换为具有一定发射频率的电磁波，通过定向天线21发送给基站40；或者将定向天线21接收到的电磁波转换为电信号，对摄像机组件进行控制等。无线电路23可以为无线通信芯片，例如实现无线4G通信功能的芯片、实现3G通信功能的芯片，以及实现5G通信功能的芯片。
根据上述相关描述可知，由于定向天线21在其所朝向的方向以及与其所朝向的方向偏离不超过阈值的方向上具有较强的电磁波发射或接收能力，因此通过电机22带动定向天线21转动，可以调整定向天线21所朝向的方向，使其朝向基站40的方向，保证定向天线21与基站40之间具有较好的通信质量。比如，假设摄像机组件安装在偏远的山林地区的某个位置，该位置的东北方向和西南方向上均有一个基站40，在摄像机组件初始安装 时，将定向天线21调整为朝向东北方向，与东北方向的基站40通信，通过东北方向的基站40连接远程服务器。在摄像机组件投入使用后，若东北方向的基站40出现故障，此时可以控制电机22带动定向天线21转动，使定向天线21朝向西南方向，与西南方向的基站40通信，通过西南方向的基站40连接远程服务器。
控制器组件24电连接无线电路23和电机22。在一些特定时间，比如摄像机组件上电初始化时、摄像机组件投入使用后的每天的预设时间点、控制器组件24检测到摄像机组件与基站40的通信质量低于阈值时，控制器组件24用于控制电机22转动来控制定向天线21依次朝向多个方向，在定向天线21朝向任一方向时，控制器组件24用于控制无线电路23通过定向天线21与基站40通信，以确定定向天线21朝向该方向时对应的通信性能值，作为该方向对应的通信性能值，也就是说，控制器组件24用于控制无线电路23通过定向天线21与基站40通信，并确定定向天线21朝向该方向时对应的通信性能值。其中，每一方向对应的通信性能值用于表征定向天线21朝向该方向时，定向天线21与基站40之间的通信质量，通信性能值越大表征通信质量越好，从而网络稳定性也越好。并根据定向天线21朝向多个方向时分别对应的通信性能值，控制电机22转动来使定向天线21朝向通信性能值达到第一性能阈值的方向。其中，通信性能值可以是用于表示定向天线21与基站40的通信质量好坏的值。在本实施例中，摄像机组件通过LTE(Long Term Evolution，长期演进)网络与远程服务器连接。在定向天线21朝向任一方向后，控制器组件24用于控制无线电路23通过定向天线21发送网络注册消息给基站40，以进行网络注册，也就是说，在定向天线21朝向任一方向后，控制器组件24可以控制无线电路23向基站40发送网络注册消息，以将摄像机组件注册到基站21的网络中，其中，线电路23是通过定向天线21向基站40发送网络注册消息的。
控制器组件24确定定向天线21朝向多个方向中的任一方向后，可以下发注网命令给无线电路23，由无线电路23发送网络注册消息给基站40，以请求注册到网络中，从而建立远程服务器与摄像机组件之间的网络连接。通常，网络注册时长大约为5秒到10秒之间，在控制器组件24下发注网命令后，可以下发查询指令，查询网络注册是否成功。查询指令的最高持续时长可以大于网络注册时长，例如为30秒。其中，查询指令的最高持续时长为控制器组件24下发查询指令后的查询有效期的时长，在查询有效期内，若控制器组件24从无线电路23查询到网络注册成功的消息，则可以确定网络注册成功，反之，在查询有效期内，若控制器组件24未从无线电路23查询到网络注册成功的消息，则确定网络注册失败。
若在查询指令的最高持续时长内，控制器组件24未从无线电路23查询到网络注册成功的消息，可以确定在相应的方向上，定向天线21无法搜索到正常工作的基站40，网络注册失败，摄像机组件无法与远程服务器建立网络连接。这种情况下，控制器组件24可以控制电机22带动定向天线21朝向下一个方向，继续检测定向天线21朝向下一个方向时，定向天线21与基站40之间的通信质量。
若在查询指令的最高持续时长内，控制器组件24从无线电路23查询到网络注册成功的消息，可以确定网络注册成功，控制器组件24可以从无线电路23读取定向天线21朝 向该方向时的参考信号接收功率和信噪比。其中，参考信号接收功率又称为RSRP(Reference Signal Receiving Power)值，信噪比又称为SINR(Signal to Interference plus Noise Ratio)值。
在一些实施例中，控制器组件24可以基于权重算法，根据参考信号接收功率和信噪比，确定定向天线21朝向该方向时的通信性能值。比如RSRP值在通信质量评估中占比70％，SINR值在通信质量评估中占比30％，则RSRP值乘以70％的值与SINR值乘以30％的值之和，可以作为定向天线21朝向该方向时对应的通信性能值。可以根据实际需要设置各参数的权重，比如若比较重视通信过程中的信噪比，则SINR值的权重可以大于RSRP值的权重。根据权重算法来确定通信性能值，可以根据实际需要从多个方面评估通信质量，使通信质量评估更加客观准确。
在一些实施例中，控制器组件24根据定向天线21朝向各方向时的通信性能值，选择性能最优的方向作为定向天线21的朝向。上述第一性能阈值可以设置为定时天线21朝向多个方向时确定的多个通信性能值中取值最大的值，即将通信性能值最大时定时天线21所朝向的方向作为定时天线21最后所朝向的方向。可以理解的是，在该些实施例中，第一性能阈值非固定值，是基于每次检测到的定向天线21朝向各方向时的通行性能值确定的。在其他一些实施例中，也可以将第一性能阈值设置为一个固定的值，通信性能值达到第一性能阈值时定时天线21所朝向的任一方向，均可以作为定时天线21最后所朝向的方向。比如定时天线21朝向方向A和方向B时，通信性能值均大于第一性能阈值，这种情况下，可以将方向A和方向B中的其中一个方向作为定时天线21最后的朝向。
可以理解的是，定向天线21朝向一个方向时的RSRP值和SINR值可以直接作为定向天线21朝向该方向的通信性能值。上述第一性能阈值也可以包括RSRP阈值和SINR阈值。若定向天线21朝向一个方向时的RSRP值达到RSRP阈值，且SINR值达到SINR阈值，该方向可以作为定向天线21最后所朝向的方向。
在一些实施例中，控制器组件24控制电机22转动来使定向天线21朝向通信性能值达到第一性能阈值的方向后，控制器组件24还用于再次确定定向天线21朝向该方向时对应的通信性能值，若再次确定的该通信性能值低于第二性能阈值，重新控制电机22转动来控制定向天线21依次朝向多个方向，并根据定向天线21朝向该多个方向时分别对应的通信性能值，控制电机22转动来使定向天线21朝向通信性能值达到第一性能阈值的方向。可选的，控制器组件24控制电机22转动来使定向天线21朝向通信性能值达到第一性能阈值的方向后，可以每间隔预设时长(例如每天0点)确定定向天线21朝向该方向时的通信性能值。如此，可以在定向天线21朝向该方向时与基站40的通信质量出现异常时(例如基站40故障)，及时重新调整定向天线21所朝向的方向，防止摄像机组件出现掉线、网络不稳等情况，提高监控质量。
在一些实施例中，第一性能阈值和第二性能阈值可以相等。
在其他一些实施例中，第一性能阈值和第二性能阈值可以不相等。可以基于通信质量的好坏程度，设置多个性能阈值。比如可以将通信质量划分为极好、好、中、差、极差五个等级，针对每个等级设置对应的性能阈值如下：
定向天线21朝向一个方向时的RSRP值大于-85dBm，且SINR值大于25，表示定向天线21朝向该方向时，与基站40的通信质量等级为“极好”；
定向天线21朝向一个方向时的RSRP值小于或等于-85dBm且大于-95dBm，且SINR值小于或等于25且大于16，表示定向天线21朝向该方向时，与基站40的通信质量等级为“好”；
定向天线21朝向一个方向时的RSRP值小于或等于-95dBm且大于-105dBm，且SINR值小于或等于16且大于11，表示定向天线21朝向该方向时，与基站40的通信质量等级为“中”；
定向天线21朝向一个方向时的RSRP值小于或等于-105dBm且大于-115dBm，且SINR值小于或等于11且大于3，表示定向天线21朝向该方向时，与基站40的通信质量等级为“差”；
定向天线21朝向一个方向时的RSRP值小于-115dBm，且SINR值小于3，表示定向天线21朝向该方向时，与基站40的通信质量等级为“极差”。
第一性能阈值可以是通信质量为极好时的性能阈值，第二性能阈值可以为通信质量为极差或差时的性能阈值。假设第一天0点检测到定时天线21朝向方向A时的RSRP值为-60dBm，SINR值为30，将方向A作为定时天线21最后朝向的方向后，若第二天0点检测到定时天线21朝向方向A时的RSRP值为-200dBm，SINR值为2，则需要重新控制电机22转动来控制定向天线21依次朝向多个方向，并根据定向天线21朝向该多个方向时分别对应的通信性能值，控制电机22转动来使定向天线21朝向通信性能值达到第一性能阈值的方向。
在一些实施例中，控制器组件24用于控制电机的转动步数，来控制定向天线21朝向的方向。摄像机组件可以在上电初始化或出厂初始化时，将定向天线21所朝向的方向设置为初始方向，基于确定的初始方向，通过控制电机的转动步数，来控制电机的转动角度，进而控制定向天线21的转动角度和定向天线21所朝向的方向。比如，假设基于初始方向，定向天线21每转动20度为一个新的方向，且电机每转动一步为0.5度，则控制器组件24可以从初始方向，控制电机转动40步，达到第一个方向。如此类推，依次达到其他的方向。通过控制电机的转动角度，来控制定向天线21的转动角度和定向天线21所朝向的方向，可以对定向天线21所朝向的方向进行较为精确的控制。一种实现方式中，上述电机可以为步进电机。
在一些实施例中，电机22包括直流无刷电机，定向天线21设置有位置编码器29，其中，位置编码器为将位置信号或数据进行编制、转换为可用于通信、传输和存储的信号形式的设备。编码角位移的称码盘，编码直线位移的称码尺。本申请实施例中，位置编码器29用于确定定向天线21的朝向的方向，从而位置编码器29可以为码盘。
位置编码器29随定向天线21转动而转动，控制器组件24与位置编码器29电连接，用于根据位置编码器29输出的信号控制定向天线21朝向的方向。在定向天线21处于不同的方向上时，位置编码器29输出的电信号不同。与对电机进行转动步数控制的相关描述类似，在摄像机组件上电初始化或出厂初始化时，将定向天线21所朝向的方向设置为 初始方向，将定向天线21位于该位置时位置编码器29输出的电信号作为初始方向电信号。控制器组件24控制直流无刷电机转动来带动定向天线21转动时，根据位置编码器29输出的电信号的变化，判断定向天线21转动至的位置以及所朝向的方向。在定向天线21转动至所需朝向的多个方向中的任一方向(比如偏离初始方向20度的方向)时，控制直流无刷电机停止，以便进行该方向上的通信质量检测。通过位置编码器29与直流无刷电机来控制定向天线21所朝向的方向的效果在于，位置编码器29的精度可以达到0.1度，可以精确记录定向天线21相对初始位置的位移变化，从而对定向天线21的转动角度以及所朝向的方向，进行精确控制。
在本申请的一些实施例中，基于天线组件200包括定向天线21、电机22、无线电路23和控制器组件24，相对于全向天线来说，定向天线21可以增加与基站40的通信距离，且增益较大，发射功率和接收灵敏度高。对于一些基站40数量较少的偏远地区，定向天线21可以与距离较远的基站40进行通信，使得在对包括天线组件200的产品(例如摄像机组件)进行位置选择时，可以无需受基站40的位置限制，产品位置的选择更加灵活，且产品的网络稳定性更好。同时，控制器组件24通过控制电机22转动，带动定向天线21转动，可以调整定向天线21朝向的方向，使定向天线21朝向通信性能值达到第一性能阈值的方向，可以保证定向天线21朝向与基站40具有较好通信质量的方向，实现了定向天线21朝向的方向与具有较好通信质量的方向的匹配，使得在与定向天线21通信的出现故障等原因时，定向天线21可以及时调整所朝向的方向来通过其他的基站40进行联网，从而使得包括天线组件200的摄像机组件的网络稳定性较好。
继续参见图2，在一些实施例中，基于天线组件200还包括阻抗匹配电路26。阻抗匹配电路26连接于无线电路23和定向天线21之间，用于实现无线电路23与定向天线21之间的阻抗匹配，降低无线电路23输出射频信号到定向天线21时的功率损耗。
在一些实施例中，天线组件200还包括天线控制电路27，天线控制电路27包括开关电路271，在天线组件200包括至少两个朝向不同方向的定向天线21的情况下，无线电路23通过开关电路271与该至少两个定向天线21连接，控制器组件24与开关电路271连接，控制器组件24用于根据无线电路23发送给定向天线21的射频频率，以及各定向天线21从基站40接收到的射频频率，控制开关电路271，以使无线电路23与其中一个定向天线21连通，如此，以保证无线电路23和定向天线21之间具有良好的阻抗匹配。比如假设无线电路23发射的射频频率为300Mhz，第一个定向天线21从基站40接收到的射频频率为302Mhz，第二个定向天线21从基站40接收到的射频频率为304Mhz，第一个定向天线21接收到射频频率与无线电路23发射的射频频率更接近，控制器组件24可以通过控制开关电路271使第一个定向天线21与无线电路23连通，从而保证良好的阻抗匹配特性。简单而言，控制器组件24可以根据每一定向天线21从基站40接收到的射频频率，从各定向天线21中，选取一个所接收的射频频率与无线电路23发射的射频频率差异最小的定向天线21，作为与无线电路连通的定向天线21。
在一些实施例中，天线组件200还包括频率检测电路25，频率检测电路25连接于开关电路271和阻抗匹配电路26之间，以及连接于阻抗匹配电路26和定向天线21之间， 用于检测无线电路23输出的射频频率以及定向天线21从基站40接收到的射频频率，也就是说，频率检测电路25可以与开关电路271、阻抗匹配电路26电连接，其中，频率检测电路25与开关电路271电连接，用于在开关电路271导通后，检测到无线电路23输出的射频频率，而频率检测电路25与阻抗匹配电路26的电连接的连接位置位置可以包括阻抗匹配电路与无线天线21的连接端(图2中未示出)，用于检测无线天线21从基站40接收到的射频频率。天线控制电路27还包括开关控制电路272，控制器组件24通过开关控制电路272分别与开关电路271和频率检测电路25连接。频率检测电路25将检测到的无线电路23输出的射频频率以及定向天线21从基站40接收到的射频频率，通过开关控制电路272发送给控制器组件24，由控制器组件24确定需要与无线电路23连通的定向天线21后，发送控制消息给开关控制电路272，由开关控制电路272控制开关电路271，来使无线电路23与需要连通的定向天线21连通。
在一些实施例中，基于天线组件200还包括电机驱动电路28。电机驱动电路28分别连接控制器组件24和电机22，控制器组件24通过控制电机驱动电路28，来控制电机22转动。
图3是本申请的一个实施例提供的摄像机组件300的示意图。
参见图2和图3，摄像机组件300包括图2中的天线组件200以及视频图像采集装置311。
所述视频图像采集装置311与所述无线电路23连接；在所述定向天线21转动至所述第一性能阈值的方向时，所述视频图像采集装置311通过所述定向天线21发送采集到的视频图像。简单而言，视频图像采集装置311可以采集视频图像，与无线电路23连接，通过无线电路23与基站40通信，将采集到的视频图像通过定向天线21上传到远程服务器。
在一些实施例中，视频图像采集装置311包括摄像机3111和采集控制器3112。其中，摄像机3111用于采集视频图像，采集控制器3112连接无线电路23和摄像机3111。在所述定向天线21转动至所述第一性能阈值的方向时，采集控制器3112将摄像机3111采集到的视频图像通过无线电路23上传到远程服务器。
在一些实施例中，摄像机组件300还包括第一壳体312和第二壳体321。
视频图像采集装置311设置于第一壳体312围成的容纳空间内，天线组件200设置于第二壳体321围成的容纳空间内，第一壳体312和第二壳体321可相对转动地连接。
其中，视频图像采集装置311设置于第一壳体312围成的容纳空间内指视频图像采集装置311可以安装在第一壳体312的内部空间。同样的，天线组件200设置于第二壳体321围成的容纳空间内指天线组件200可以安装在第二壳体321的内部空间。
一种实现方式中，第一壳体312可以设置于第一转动体31，第二壳体321可以设置于第二转动体32，第一转动体31和第二转动体32可相对转动地连接，也就是说，第一转动体31连接于第二转动体32，且第一转动体31和第二转动体32可相对转动，从而第一转动体31与第二转动体32相对转动时，带动第一壳体312和第二壳体321可相对转动。
如此，天线组件200和视频图像采集装置311相互之间的干扰较小，可以降低定向天 线21被视频图像采集装置311的干扰程度，提高定向天线21与基站40的通信质量。
在一些实施例中，第二壳体321设置有开口322，定向天线21通过开口322从第二壳体321围成的容纳空间内延伸至第二壳体321围成的容纳空间外，电机22包括横向控制电机和纵向控制电机，横向控制电机用于驱动第二壳体321横向转动，以带动定向天线21横向转动，纵向控制电机用于连接定向天线21，带动定向天线21纵向转动。横向控制电机通过驱动第二壳体321横向转动，来带动定向天线21横向转动，以实现定向天线21朝向不同的方向；纵向控制电机带动定向天线21纵向转动，以避免定向天线21被阻挡物遮挡，影响定向天线21与基站40之间的通信质量。纵向控制电机可以带动定向天线21在纵向0度到15度的范围内转动。
在一些实施例中，摄像机组件300还可以包括图2中所示的传动装置221。电机22通过传动装置221驱动第二壳体321和定向天线21转动。
图4是图3中摄像机组件300的控制流程图。控制流程图可应用于摄像机组件300内天线组件200中的控制器组件24，包括步骤S41至步骤S49。
步骤S40，摄像机组件上电启动自检。在其他一些实施例中，也可以是摄像机组件正常工作过程中，在设定的时间点启动自检，比如每天的0点。
步骤S41，将定向天线21当前朝向的方向记录为初始方向。
对于直流无刷电机驱动的定向天线21来说，控制器组件24可以根据位置编码器29输出的电信号来判断定向天线21当前朝向的方向，并将该方向记录为初始方向。
对于通过控制电机转动步数的电机驱动的定向天线21来说，控制器组件24可以无需执行任何操作。
步骤S42，控制定向天线21转动20度，并发送网络注册命令给无线电路。
对于直流无刷电机驱动的定向天线21来说，控制器组件24在控制直流无刷电机驱动定向天线21转动过程中，实时检测位置编码器29的电信号，在根据位置编码器29输出的电信号确定定向天线21相对于初始方向转动20度后，控制直流无刷电机停止驱动定向天线21转动。
对于通过控制电机转动步数的方式驱动的定向天线21来说，控制器组件24通过控制电机前进的步数，来控制定向天线21每次转动的角度。
步骤43，检查设备是否网络注册成功。控制器组件24检测设备是否在定向天线21所朝向的方向上网络注册成功，可参见图2中对天线组件200的相关描述，此处不赘述。若摄像机组件在定向天线21所朝向的方向上网络注册成功，执行步骤S44；否则，执行步骤S42。
步骤S44，下发查询命令给无线电路23，从无线电路23读取RSRP值和SINR值，并存储。在一些实施例中，针对定向天线21所朝向的多个方向，控制器组件24可以针对每个方向建立一个存储区，用于存储定向天线21朝向每个方向时对应的RSRP值和SINR值。比如，定向天线21朝向方向A时，若在方向A网络注册成功，控制器组件24从无线电路23读取到RSRP值和SINR值后，将读取到RSRP值和SINR值存储在方向A对应的存储区。
步骤S45，判断是否读取所有方向的RSRP值和SINR值。此处所有方向的RSRP值和SINR值指网络注册成功的所有方向的RSRP值和SINR值。以每次控制定向天线21转动20度为例，定向天线21需要一共转动18次，完成一次圆周转动，回到朝向初始方向的位置。在这个过程中，控制器组件24需要控制定向天线21一共朝向18个方向，并在该18个方向上，控制定向天线21发送网络注册命令，若网络注册成功，则获取对应的RSRP值和SINR值。控制器组件24可以在定时天线21每转动至一个方向后，进行一次计数，在计数达到18后，表示定向天线21完成一次圆周转动，回到朝向初始方向的位置，即已经读取所有网络注册成功的方向上的RSRP值和SINR值，执行步骤S46；若未读取所有方向的RSRP值和SINR值，执行步骤S42。
步骤S46，根据各方向上的RSRP值和SINR值，确定各方向上的通信性能值。各方向上的通信性能值可以参考图2中对天线组件的相关描述，此处不赘述。
步骤S47，将定时天线21移动至通信性能值最大的方向。此处相关的描述，可以参考图2中对天线组件的相关描述，此处不赘述。
步骤S48，判断定时天线21当前所朝向方向的通信性能值是否低于阈值。控制器组件24可以在预设的时间点，比如每天的0点，重新从无线电路23读取定时天线21朝向当前方向时的RSRP值和SINR值，并计算对应的通信性能值。若通信性能值未低于阈值，执行步骤S49；若通信性能值低于阈值，执行步骤S41。
步骤S49，控制定时天线21继续朝向当前方向。
图5是图1的摄像机组件100的全向天线14与图3中的摄像机组件300的定向天线21的辐射对比图。
参见图5，摄像机组件300包括两个定向天线21，曲线S51、S52分别为该两个定向天线21朝向其中一个方向时的辐射图；摄像机组件100包括一个全向天线14，曲线S53为该全向天线14的辐射图。从图5可以看出，摄像机组件300的两个定向天线21的增益更大，辐射范围更广；摄像机组件100的全向天线14的增益较小，辐射范围较窄。
基于以上描述可知，包括天线组件200的摄像机组件300通过电机22带动定向天线21转动，由控制器组件24判断定向天线21时的通信性能值，来控制电机22带动定向天线21朝向通信性能值超过第一性能阈值的方向，摄像机组件300与基站40的通信质量更高，网络稳定性更好。
相应于本申请上述实施例所提供的基于定向天线可转动的摄像机组件，如图6所示，本申请实施例还提供了一种定向天线转动方向的控制方法，摄像机组件内天线组件中的控制器组件，所述摄像机组件还包括视频图像采集装置，所述天线组件还包括定向天线、与所述定向天线连接的电机、与所述定向天线连接的无线电路；其中，所述电机用于带动所述定向天线转动，以改变所述定向天线的朝向，所述控制器组件电连接所述无线电路和所述电机；所述视频图像采集装置与所述无线电路连接，通过所述定向天线发送采集到的视频图像；方法包括：
S61，控制电机转动来控制定向天线依次朝向多个方向；
可选的，可以通过控制电机的转动步数，以控制定向天线依次朝向多个方向。
可选的，在电机包括直流无刷电机，定向天线设置有位置编码器，位置编码器随定向天线转动而转动，控制器组件与位置编码器电连接的情况下，可以根据位置编码器输出的信号，以控制定向天线依次朝向多个方向。
S62，在定向天线朝向任一方向时，控制无线电路通过定向天线与基站通信，并确定定向天线朝向该方向时对应的通信性能值；
可选的，一种实现方式中，控制无线电路通过定向天线与基站通信，并确定定向天线朝向该方向时对应的通信性能值，可以包括：控制无线电路通过定向天线发送网络注册消息给基站，以进行网络注册；若无线电路网络注册成功，从无线电路读取定向天线朝向该方向时的参考信号接收功率和信噪比；根据参考信号接收功率和信噪比，确定定向天线朝向该方向时的通信性能值。
一种实现方式中，上述根据参考信号接收功率和信噪比，确定定向天线朝向该方向时的通信性能值，可以包括：基于权重算法，根据参考信号接收功率和信噪比，确定定向天线朝向该方向时的通信性能值。
S63，根据定向天线朝向多个方向时分别对应的通信性能值，控制电机转动来使定向天线朝向通信性能值达到第一性能阈值的方向。
可选的，一实施例中，天线组件还包括天线控制电路，以及至少两个朝向不同方向的定向天线，天线控制电路包括开关电路，无线电路通过开关电路与该至少两个定向天线连接，控制器组件与开关电路电连接，
此时，本申请所提供的天线朝向控制方法，还可以根据无线电路发送给定向天线的射频频率，以及各定向天线从基站接收到的射频频率，控制开关电路，以使无线电路与其中一个定向天线连通。
可选的，一实施例中，在控制电机转动来使定向天线朝向通信性能值达到第一性能阈值的方向后，本申请所提供的天线朝向控制方法还可以包括：再次确定定向天线朝向该方向时对应的通信性能值；若再次确定的该通信性能值低于第二性能阈值，重新控制电机转动，以控制定向天线依次朝向多个方向，并根据定向天线朝向该多个方向时分别对应的通信性能值，控制电机转动来使定向天线朝向通信性能值达到第一性能阈值的方向。
本申请上述实施例中，控制器组件通过控制电机转动，带动定向天线转动，可以调整定向天线朝向的方向，使定向天线朝向通信性能值达到第一性能阈值的方向，可以保证定向天线朝向与基站具有较好通信质量的方向，实现了定向天线朝向的方向与具有较好通信质量的方向的匹配，从而使得基于定向天线可转动的摄像机组件的网络稳定性更好，使得摄像机组件中的视频图像采集设备能够以稳定的网络发送采集到的视频图像，进而提升了摄像机组件的监控质量。
本说明书中的各个实施例均采用相关的方式描述，各个实施例之间相同相似的部分互相参见即可，每个实施例重点说明的都是与其他实施例的不同之处。尤其，对于方法而言，由于其基本相似于摄像机组件实施例，所以描述的比较简单，相关之处参见摄像机组件实施例的部分说明即可。
以上所述仅为本申请的较佳实施例，并不用以限制本申请，凡在本申请的精神和原则 之内，所做的任何修改、等同替换、改进等，均应包含在本申请保护的范围之内。
Claims (15)
- 一种基于定向天线可转动的摄像机组件，包括：视频图像采集装置和天线组件；所述天线组件包括：定向天线；电机，与所述定向天线连接，用于带动所述定向天线转动，以改变所述定向天线的朝向；无线电路，与所述定向天线电连接；及控制器组件，电连接所述无线电路和所述电机，用于控制所述电机转动来控制所述定向天线依次朝向多个方向，在所述定向天线朝向任一所述方向时，所述控制器组件用于控制所述无线电路通过所述定向天线与基站通信，以确定所述定向天线朝向该方向时对应的通信性能值，并根据所述定向天线朝向多个所述方向时分别对应的所述通信性能值，控制所述电机转动来使所述定向天线朝向所述通信性能值达到第一性能阈值的方向；所述视频图像采集装置与所述无线电路连接；在所述定向天线转动至所述第一性能阈值的方向时，所述视频图像采集装置通过所述定向天线发送采集到的视频图像。
- 如权利要求1所述的摄像机组件，其中，所述天线组件包括至少两个朝向不同方向的定向天线。
- 如权利要求2所述的摄像机组件，其中，所述视频图像采集装置设置于第一壳体围成的容纳空间内，所述天线组件设置于第二壳体围成的容纳空间内，所述第一壳体和所述第二壳体可相对转动地连接。
- 如权利要求3所述的摄像机组件，其中，所述第二壳体设置有开口，所述定向天线通过所述开口从所述第二壳体围成的容纳空间内延伸至所述第二壳体围成的容纳空间外，所述电机包括横向控制电机和纵向控制电机，所述横向控制电机用于驱动所述第二壳体横向转动，以带动所述定向天线横向转动，所述纵向控制电机用于连接所述定向天线，带动所述定向天线纵向转动。
- 如权利要求3或4所述的摄像机组件，其中，所述天线组件还包括天线控制电路，所述天线控制电路包括开关电路，所述无线电路通过所述开关电路与该至少两个所述定向天线连接，所述控制器组件与所述开关电路电连接，所述控制器组件用于根据所述无线电路发送给所述定向天线的射频频率，以及各所述定向天线从所述基站接收到的射频频率， 控制所述开关电路，以使所述无线电路与其中一个所述定向天线连通。
- 如权利要求3或4所述的摄像机组件，其中，在控制所述电机转动来使所述定向天线朝向所述通信性能值达到第一性能阈值的方向后，所述控制器组件还用于再次确定所述定向天线朝向该方向时对应的通信性能值，若再次确定的该通信性能值低于第二性能阈值，重新控制所述电机转动来控制所述定向天线依次朝向多个方向，并根据所述定向天线朝向该多个所述方向时分别对应的所述通信性能值，控制所述电机转动来使所述定向天线朝向所述通信性能值达到所述第一性能阈值的方向。
- 如权利要求6所述的摄像机组件，其中，所述控制器组件用于控制所述电机的转动步数，来控制所述定向天线朝向的方向。
- 如权利要求7所述的摄像机组件，其中，所述电机包括直流无刷电机，所述定向天线设置有位置编码器，所述位置编码器随所述定向天线转动而转动，所述控制器组件与所述位置编码器电连接，用于根据所述位置编码器输出的信号来控制所述定向天线朝向的方向。
- 如权利要求8所述的摄像机组件，其中，所述控制器组件用于控制所述无线电路通过所述定向天线发送网络注册消息给所述基站，以进行网络注册；若所述无线电路网络注册成功，所述控制器组件用于从所述无线电路读取所述定向天线朝向该方向时的参考信号接收功率和信噪比；所述控制器组件用于根据所述参考信号接收功率和所述信噪比，确定所述定向天线朝向该方向时的通信性能值。
- 如权利要求9所述的摄像机组件，其中，所述控制器组件用于基于权重算法，根据所述参考信号接收功率和所述信噪比，确定所述定向天线朝向该方向时的通信性能值。
- 一种定向天线转动方向的控制方法，其中，应用于摄像机组件内天线组件中的控制器组件，所述摄像机组件还包括视频图像采集装置，所述天线组件还包括定向天线、与所述定向天线连接的电机、与所述定向天线连接的无线电路；其中，所述电机用于带动所述定向天线转动，以改变所述定向天线的朝向，所述控制器组件电连接所述无线电路和所述电机；所述视频图像采集装置与所述无线电路连接，通过所述定向天线发送采集到的视频图像；所述方法包括：控制所述电机转动，以控制所述定向天线依次朝向多个方向；在所述定向天线朝向任一所述方向时，控制所述无线电路通过所述定向天线与基站通信，并确定所述定向天线朝向该方向时对应的通信性能值；根据所述定向天线朝向多个所述方向时分别对应的所述通信性能值，控制所述电机转动来使所述定向天线朝向所述通信性能值达到第一性能阈值的方向。
- 根据权利要求11所述的方法，其中，所述天线组件还包括天线控制电路，以及包括至少两个朝向不同方向的所述定向天线，所述天线控制电路包括开关电路，所述无线电路通过所述开关电路与该至少两个所述定向天线连接，所述控制器组件与所述开关电路电连接，所述方法还包括：根据所述无线电路发送给所述定向天线的射频频率，以及各所述定向天线从所述基站接收到的射频频率，控制所述开关电路，以使所述无线电路与其中一个所述定向天线连通。
- 根据权利要求11所述的方法，其中，在所述控制所述电机转动来使所述定向天线朝向所述通信性能值达到第一性能阈值的方向后，所述方法还包括：再次确定所述定向天线朝向该方向时对应的通信性能值；若再次确定的该通信性能值低于第二性能阈值，重新控制所述电机转动来控制所述定向天线依次朝向多个方向，并根据所述定向天线朝向该多个所述方向时分别对应的所述通信性能值，控制所述电机转动来使所述定向天线朝向所述通信性能值达到所述第一性能阈值的方向。
- 根据权利要求11所述的方法，其中，所述控制所述电机转动，以控制所述定向天线依次朝向多个方向，包括：控制所述电机的转动步数，以控制所述定向天线依次朝向多个方向。
- 如权利要求11所述的方法，其中，所述电机包括直流无刷电机，所述定向天线设置有位置编码器，所述位置编码器随所述定向天线转动而转动，所述控制器组件与所述位置编码器电连接；所述控制所述电机转动来控制所述定向天线依次朝向多个方向，包括：根据所述位置编码器输出的信号来控制所述定向天线依次朝向多个方向。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110875557.XA CN113596406B (zh) | 2021-07-30 | 2021-07-30 | 具有定向天线可转动的监控设备 |
| CN202110875557.X | 2021-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023005398A1 true WO2023005398A1 (zh) | 2023-02-02 |
Family
ID=78253086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2022/095604 WO2023005398A1 (zh) | 2021-07-30 | 2022-05-27 | 基于定向天线可转动的摄像机组件 |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113596406B (zh) |
| WO (1) | WO2023005398A1 (zh) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113596406B (zh) * | 2021-07-30 | 2024-02-27 | 杭州海康威视数字技术股份有限公司 | 具有定向天线可转动的监控设备 |
| US20230361488A1 (en) * | 2022-05-03 | 2023-11-09 | Ubicquia, Inc. | Wireless communication node and method for configuring donor and service antennas therefor |
| CN114598342B (zh) * | 2022-05-09 | 2022-07-29 | 上海擎昆信息科技有限公司 | 一种与陆地基站进行通信的船载设备及其控制方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007324718A (ja) * | 2006-05-30 | 2007-12-13 | Nikon Corp | カメラ |
| CN205830047U (zh) * | 2016-07-14 | 2016-12-21 | 武汉万集信息技术有限公司 | 一种天线方位可调的无线基站 |
| CN108513646A (zh) * | 2017-06-29 | 2018-09-07 | 深圳市大疆创新科技有限公司 | 控制方法、无人机和计算机可读存储介质 |
| WO2020164256A1 (zh) * | 2019-02-13 | 2020-08-20 | 华为技术有限公司 | 一种无线信号质量评估方法、电子设备及系统 |
| CN113596406A (zh) * | 2021-07-30 | 2021-11-02 | 杭州海康威视数字技术股份有限公司 | 基于定向天线可转动的电子设备和监控设备 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200816677A (en) * | 2006-06-06 | 2008-04-01 | Qualcomm Inc | Apparatus and method for wireless communication via at least one of directional and omni-direction antennas |
| US8810451B2 (en) * | 2009-05-21 | 2014-08-19 | Zte Corporation | Communication antenna automatic orientation apparatus and method |
| JP5432882B2 (ja) * | 2010-11-25 | 2014-03-05 | 株式会社日立製作所 | 分散アンテナシステム、分散アンテナ切替方法、基地局装置及びアンテナスイッチ装置 |
| CN103050780B (zh) * | 2012-12-28 | 2014-09-24 | 四川九洲电器集团有限责任公司 | 一种定向天线校轴方法 |
| CN104064868B (zh) * | 2013-03-18 | 2017-07-25 | 联想(北京)有限公司 | 定向天线调整方法、装置及具有该装置的电子设备 |
-
2021
- 2021-07-30 CN CN202110875557.XA patent/CN113596406B/zh active Active
-
2022
- 2022-05-27 WO PCT/CN2022/095604 patent/WO2023005398A1/zh unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007324718A (ja) * | 2006-05-30 | 2007-12-13 | Nikon Corp | カメラ |
| CN205830047U (zh) * | 2016-07-14 | 2016-12-21 | 武汉万集信息技术有限公司 | 一种天线方位可调的无线基站 |
| CN108513646A (zh) * | 2017-06-29 | 2018-09-07 | 深圳市大疆创新科技有限公司 | 控制方法、无人机和计算机可读存储介质 |
| WO2020164256A1 (zh) * | 2019-02-13 | 2020-08-20 | 华为技术有限公司 | 一种无线信号质量评估方法、电子设备及系统 |
| CN113596406A (zh) * | 2021-07-30 | 2021-11-02 | 杭州海康威视数字技术股份有限公司 | 基于定向天线可转动的电子设备和监控设备 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113596406A (zh) | 2021-11-02 |
| CN113596406B (zh) | 2024-02-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2023005398A1 (zh) | 基于定向天线可转动的摄像机组件 | |
| US9246207B2 (en) | Antenna aiming system and method for broadband wireless access | |
| US7979025B2 (en) | Method and apparatus for handover in a wireless communication device between wireless domains | |
| US6754451B1 (en) | Infrared transmission/reception apparatus and infrared transmission/reception method | |
| JP5040219B2 (ja) | 動き検出システム、動き検出装置、動き検出方法およびコンピュータプログラム | |
| CN103078186B (zh) | 角反射装置及控制方法 | |
| WO2011103818A2 (zh) | 基站天线信息远程检测方法和系统 | |
| WO2006093710A2 (en) | System and method for asset location in wireless networks | |
| CN104768158A (zh) | 一种识别定位伪基站的方法 | |
| US20200389061A1 (en) | Wireless power transmission of electronic device having rotating body | |
| US20160308625A1 (en) | Wireless transmission device, and method for connecting a wireless transmission device with a mobile communication device | |
| CN112327944A (zh) | 一种电子设备控制方法、装置、电子设备及存储介质 | |
| KR100881067B1 (ko) | 지향성 안테나와 가변 송신출력을 이용한 원격 통신 시스템및 그 방법 | |
| TW202243320A (zh) | 天線裝置及天線控制方法 | |
| EP1226729B1 (en) | System for determining whether the position of a mobile communication unit is within a limited spatial portion | |
| JP2013072732A (ja) | 無線タグ方向探知システム | |
| CN114584155B (zh) | 监控设备 | |
| EP3396779A1 (en) | A method for detecting an external antenna connected to a communication device | |
| CN114584156B (zh) | 监控设备及其通信控制方法 | |
| KR100200681B1 (ko) | 레이다 비이콘 정렬장치 | |
| JP2001083231A (ja) | 位置情報システム | |
| US20230139193A1 (en) | Indoor direction finding method and system thereof | |
| US20220345905A1 (en) | Antenna Pattern Selection Method and Apparatus | |
| CN114638243A (zh) | 调节方法和装置、读卡器和存储介质 | |
| JPH09233564A (ja) | 遠隔操縦用アンテナ制御システム |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22848008 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |