CN111741194B - Separated camera, power supply control method and device - Google Patents
Separated camera, power supply control method and device Download PDFInfo
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- CN111741194B CN111741194B CN202010583563.3A CN202010583563A CN111741194B CN 111741194 B CN111741194 B CN 111741194B CN 202010583563 A CN202010583563 A CN 202010583563A CN 111741194 B CN111741194 B CN 111741194B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/65—Control of camera operation in relation to power supply
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Abstract
The invention discloses a separated camera, a power supply control method and a power supply control device, wherein the separated camera comprises: a front-end device and a back-end device; the rear-end equipment comprises a control module, a first power supply module and a detection module; the control module is connected with the detection module and is used for controlling the detection module to be started; the detection module is used for detecting whether the front-end equipment is connected with the rear-end equipment or not and sending a detection result to the control module; the control module is further connected with the first power module and is further used for controlling the first power module to supply power to the front-end equipment when the received detection result shows that the front-end equipment is connected with the rear-end equipment. Thereby guaranteed that the rear end equipment is under the circumstances of power-on, determine earlier that the front end equipment is connected the back with the rear end equipment, for the front end equipment power supply again, avoided high-pressure burr phenomenon for the plug-and-play of front end equipment supports the operation of front end equipment hot plug.
Description
Technical Field
The invention relates to the technical field of video monitoring, in particular to a separated camera, a power supply control method and a power supply control device.
Background
The separated camera comprises a front-end device and a rear-end device, wherein the front-end device is used for collecting images and transmitting the images to the rear-end device, the rear-end device is used for processing the images, the front-end device and the rear-end device are generally connected through a long-distance cable, and the length of the cable can reach about fifteen meters generally. Long cables present a problem of difficult wiring.
In order to solve the problem of difficult wiring, the Power Over Coaxial (POC) technology has been developed, and the POC technology couples a Power supply signal and an image signal on the same Coaxial cable for transmission, and mainly aims to reduce wiring cost, improve installation convenience and safety, and enable the front-end equipment and the rear-end equipment to work normally only by connecting one Coaxial cable.
When the separated camera is used, the rear-end equipment supplies power to the front-end equipment through the cable, so that the camera can normally work only when the rear-end equipment is powered on after the front-end equipment and the rear-end equipment are connected at present. If the back-end equipment is in a power-on state firstly and then the front-end equipment is connected with the back-end equipment, a high-voltage burr phenomenon can be generated at the moment, so that the front-end equipment is damaged.
Therefore, the separated camera of the prior art has a problem that hot plug is not supported, that is, plug and play cannot be performed.
Disclosure of Invention
The embodiment of the invention provides a separated camera, a power supply control method and a power supply control device, which are used for solving the problem that the separated camera in the prior art does not support hot plug, namely plug and play can not be realized.
An embodiment of the present invention provides a separated camera, including: a front-end device and a back-end device; the rear-end equipment comprises a control module, a first power supply module and a detection module;
the control module is connected with the detection module and used for controlling the detection module to be started;
the detection module is used for detecting whether the front-end equipment is connected with the rear-end equipment or not and sending a detection result to the control module;
the control module is further connected with the first power module and is further used for controlling the first power module to supply power to the front-end equipment when the received detection result shows that the front-end equipment is connected with the rear-end equipment.
Further, the control module is further configured to determine whether an image is received, and if not, control the detection module to be turned on.
Further, the control module is further configured to control the detection module to be turned off when the received detection result indicates that the front-end device is connected with the back-end device.
Further, the front-end device comprises a state identification module, and the state identification module is connected with the detection module;
the state identification module is used for outputting identification information of whether the front-end equipment is connected with the back-end equipment to the detection module;
the detection module is further used for judging whether the front-end equipment is connected with the back-end equipment or not according to the identification information output by the state identification module.
Further, the front-end device further comprises an image sensor and a serializer, and the back-end device further comprises a deserializer;
the image sensor is connected with the serializer, the serializer is further connected with the deserializer, and the deserializer is further connected with the control module;
the image sensor is used for acquiring an image and sending the image to the serializer;
the serializer is used for converting the image into an image signal and transmitting the image signal to the deserializer through a cable;
and the deserializer is used for converting the image signal into an image and sending the image to the control module.
Further, the control module is further configured to send function configuration information to the image sensor and the serializer through the deserializer, respectively.
Further, the front-end equipment further comprises a second power supply module;
the second power supply module is respectively connected with the image sensor, the serializer and the first power supply module;
the first power supply module is also used for supplying power to the second power supply module;
the second power supply module is used for distributing required power supply voltage for the image sensor and the serializer respectively.
Furthermore, the back-end equipment also comprises a network output module, and the network output module is connected with the control module;
the control module is also used for sending the received image to network equipment through the network output module.
Further, the front-end device further comprises a second coupling module, and the back-end device further comprises a first coupling module;
the second coupling module is respectively connected with the state identification module, the second power supply module and the serializer;
the first coupling module is respectively connected with the deserializer, the first power supply module, the detection module and the second coupling module;
the second coupling module is used for coupling signals generated by the state identification module, the second power supply module and the serializer to obtain a first coupling signal and sending the first coupling signal to the first coupling module;
the first coupling module is used for coupling signals generated by the deserializer, the first power supply module and the detection module to obtain a second coupling signal and sending the second coupling signal to the second coupling module;
the second coupling module is further configured to separate the second coupled signal;
the first coupling module is further configured to separate the first coupled signal.
Further, the number of the front-end equipment is at least two; the number of the first power supply modules, the number of the detection modules and the number of the first coupling modules are correspondingly the same as the number of the front-end equipment.
On the other hand, an embodiment of the present invention provides a power supply control method, where the method includes:
controlling a detection module to be started, so that the detection module detects whether the front-end equipment is connected with the rear-end equipment;
and receiving a detection result sent by the detection module, and controlling a first power module to supply power to the front-end equipment when the received detection result indicates that the front-end equipment is connected with the rear-end equipment.
In another aspect, an embodiment of the present invention provides a power supply control apparatus, where the apparatus includes:
the first control unit is used for controlling the detection module to be started so that the detection module detects whether the front-end equipment is connected with the rear-end equipment;
the second control unit is used for receiving the detection result sent by the detection module, and controlling the first power supply module to supply power to the front-end equipment when the received detection result indicates that the front-end equipment is connected with the rear-end equipment.
The embodiment of the invention provides a separated camera, a power supply control method and a power supply control device, wherein the separated camera comprises: a front-end device and a back-end device; the rear-end equipment comprises a control module, a first power supply module and a detection module; the control module is connected with the detection module and is used for controlling the detection module to be started; the detection module is used for detecting whether the front-end equipment is connected with the rear-end equipment or not and sending a detection result to the control module; the control module is further connected with the first power module and is further used for controlling the first power module to supply power to the front-end equipment when the received detection result shows that the front-end equipment is connected with the rear-end equipment.
In the embodiment of the invention, the detection module in the back-end equipment determines whether the front-end equipment is connected with the back-end equipment or not and sends the detection result to the control module, and the control module controls the first power supply module to supply power to the front-end equipment when determining that the detection result is that the front-end equipment is connected with the back-end equipment. Thereby guaranteed that the rear end equipment is under the circumstances of power-on, determine earlier that the front end equipment is connected the back with the rear end equipment, for the front end equipment power supply again, avoided high-pressure burr phenomenon for the plug-and-play of front end equipment supports the operation of front end equipment hot plug.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a separated camera provided in embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a separated camera provided in embodiment 3 of the present invention;
fig. 3 is a schematic structural diagram of a separated camera provided in embodiment 4 of the present invention;
fig. 4 is a schematic structural diagram of a separated camera provided in embodiment 5 of the present invention;
fig. 5 is a schematic structural diagram of a separated camera provided in embodiment 6 of the present invention;
fig. 6 is a schematic structural diagram of a separated camera provided in embodiment 7 of the present invention;
fig. 7 is a schematic structural diagram of another separated camera provided in embodiment 7 of the present invention;
FIG. 8 is a schematic diagram of an electrical control process according to embodiment 8 of the present invention;
fig. 9 is a schematic detailed flow chart of power supply control provided in embodiment 8 of the present invention;
fig. 10 is a schematic structural diagram of a power supply control device according to embodiment 8 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the attached drawings, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
fig. 1 is a schematic structural diagram of a separated camera according to an embodiment of the present invention, including: a front-end device 11 and a back-end device 12; the backend device 12 includes a control module 121, a first power module 122, and a detection module 123;
the control module 121 is connected to the detection module 123, and is configured to control the detection module 123 to be turned on;
the detection module 123 is configured to detect whether the front-end device 11 is connected to the back-end device 12, and send a detection result to the control module 121;
the control module 121 is further connected to the first power module 122, and is further configured to control the first power module 122 to supply power to the front-end device 11 when the received detection result indicates that the front-end device 11 is connected to the back-end device 12.
As shown in fig. 1, the separated camera includes a front-end device and a back-end device, the front-end device is used for collecting images and transmitting the images to the back-end device, and the back-end device is used for image processing. In order to solve the problem that the existing separated camera does not support hot plug, that is, plug and play cannot be achieved, the back-end equipment in the embodiment of the invention comprises a control module, a first power module and a detection module.
The detection module is used for detecting whether the front-end equipment is connected with the rear-end equipment or not and sending a detection result to the control module. The control module is used for issuing different control instructions to the first power supply module according to different detection results. Specifically, the control module controls the first power module to supply power to the front-end device when the received detection result indicates that the front-end device is connected with the rear-end device, and controls the first power module not to supply power to the front-end device when the received detection result indicates that the front-end device is not connected with the rear-end device. The first power supply module is used for transmitting coaxial power supply voltage to the front-end equipment.
In the embodiment of the invention, the detection module in the back-end equipment determines whether the front-end equipment is connected with the back-end equipment or not and sends the detection result to the control module, and the control module controls the first power supply module to supply power to the front-end equipment when determining that the detection result is that the front-end equipment is connected with the back-end equipment. Thereby guaranteed that the rear end equipment is under the circumstances of power-on, determine earlier that the front end equipment is connected the back with the rear end equipment, for the front end equipment power supply again, avoided high-pressure burr phenomenon for the plug-and-play of front end equipment supports the operation of front end equipment hot plug.
Example 2:
on the basis of the above embodiment, in the embodiment of the present invention, the control module is further configured to determine whether an image is received, and if not, control the detection module to be turned on.
The control module is further configured to control the detection module to be turned off when the received detection result indicates that the front-end device is connected with the back-end device.
The signals transmitted on the coaxial cable connected between the front-end equipment and the rear-end equipment of the split camera comprise image signals transmitted by the front-end equipment to the rear-end equipment, power supply signals transmitted by the rear-end equipment to the front-end equipment and detection signals transmitted by the rear-end equipment to the front-end equipment, wherein the detection signals are detection signals used for detecting whether the front-end equipment is connected with the rear-end equipment or not by a detection module. When the back-end device transmits the power supply signal and the detection signal to the front-end device at the same time, signal collision may occur, which affects the normal operation of the separate camera. In order to avoid this problem, in the embodiment of the present invention, the control module determines whether an image is received, and if not, controls the detection module to be turned on. And when the received detection result is that the front-end equipment is connected with the rear-end equipment, the detection module is controlled to be closed before the first power module is controlled to supply power to the front-end equipment. Namely, the detection module is controlled not to send out a detection signal any more, and then the first power supply module is controlled to supply power to the front-end equipment. And when the control module does not receive the image, the control module controls the first power supply module to stop supplying power to the front-end equipment and controls the detection module to be started.
The scheme provided by the embodiment of the invention can ensure plug and play of the front-end equipment and simultaneously avoid conflict between the detection module and the first power supply module. The working stability of the separated camera is further ensured.
Example 3:
on the basis of the foregoing embodiments, in an embodiment of the present invention, the front-end device includes a state identification module 111, and the state identification module 111 is connected to the detection module 123;
the state identification module 111 is configured to output, to the detection module 123, identification information of whether the front-end device is connected to the back-end device;
the detection module is further used for judging whether the front-end equipment is connected with the back-end equipment or not according to the identification information output by the state identification module.
As shown in fig. 2, the front-end device of the separated camera further includes a state identification module, and the state identification module is connected to the detection module in the back-end device. The state identification module outputs identification information of whether the front-end equipment is connected with the back-end equipment to the detection module. Specifically, when the front-end device is not connected to the back-end device, the identification information output by the state identification module is high-level information, for example, 1. When the front-end device is connected to the back-end device, the identification information output by the state identification module is low level information, for example, 0. This is because the circuit formed when the front-end device is connected to the back-end device is a power supply terminal similar to the back-end device, and supplies power to the front-end device, and the front-end device is grounded. When the front-end equipment is not connected with the rear-end equipment, the front-end equipment and the rear-end equipment are equivalently open circuits, the identification information output by the state identification module is high-level information, when the front-end equipment is connected with the rear-end equipment, the front-end equipment and the rear-end equipment are equivalently closed circuits, and the identification information output by the state identification module is low-level information.
The state identification module transmits identification information of whether the front-end equipment is connected with the back-end equipment to the detection module, and the detection module judges whether the front-end equipment is connected with the back-end equipment according to the identification information output by the state identification module. Specifically, when the detection module identifies that the received identification information is high-level information, it is determined that the front-end device is not connected with the back-end device, and when the detection module identifies that the received identification information is low-level information, it is determined that the front-end device is connected with the back-end device.
Example 4:
on the basis of the above embodiments, in the embodiment of the present invention, the front-end device further includes an image sensor 112 and a serializer 113, and the back-end device further includes a deserializer 124;
the image sensor 112 is connected to the serializer 113, the serializer 113 is further connected to the deserializer 124, and the deserializer 124 is further connected to the control module 121;
the image sensor 112 is configured to collect an image and send the image to the serializer 113;
the serializer 113 is configured to convert the image into an image signal and transmit the image signal to the deserializer 124 through a cable;
the deserializer 124 is configured to convert the image signal into an image and send the image to the control module 121.
As shown in fig. 3, in the embodiment of the present invention, the front-end device further includes an image sensor and a serializer, and the back-end device further includes a deserializer. The image sensor is used for converting the optical signal into an electric signal to realize the acquisition of environment image information and then sending the acquired image to the serializer. The serializer is used for receiving an image sent by an image sensor through interfaces such as MIPI or LVDS and the like, converting the image into an image signal suitable for being transmitted in a coaxial cable, and transmitting the image signal to the deserializer through the cable. The deserializer is used for receiving the image signal sent by the serializer, restoring the image signal into an image and then sending the image to the control module through interfaces such as MIPI or LVDS.
In addition, the control module is further configured to send function configuration information to the image sensor and the serializer through the deserializer, respectively. The image sensor and the serializer configure their own functions according to the received function configuration information, and the response function can be realized only after the configuration is completed.
Example 5:
in order to ensure that the image sensor and the serializer can work normally, on the basis of the above embodiments, in an embodiment of the present invention, the front-end device further includes a second power module 114;
the second power module 114 is connected to the image sensor 112, the serializer 113 and the first power module 122 respectively;
the first power module 122 is further configured to supply power to the second power module 114;
the second power module 114 is used for distributing required power supply voltages to the image sensor 112 and the serializer 113 respectively.
As shown in fig. 4, in the separated camera provided in the embodiment of the present invention, the front-end device further includes a second power module. The first power supply module in the back-end equipment is also used for supplying power to the second power supply module, the second power supply module is equivalent to a voltage converter, and the second power supply module is respectively connected with the image sensor and the serializer. The second power supply module is used for converting the power supply voltage sent by the first power supply module into the normal working voltage needed by the image sensor and the serializer respectively after receiving the power supply voltage sent by the first power supply module, and then sending the normal working voltage to the image sensor and the serializer respectively, so that the normal work of the image sensor and the serializer is guaranteed.
Example 6:
on the basis of the foregoing embodiments, in the embodiment of the present invention, as shown in fig. 5, the backend device further includes a network output module 125, where the network output module 125 is connected to the control module 121;
the control module 121 is further configured to send the received image to a network device through the network output module 125.
In the embodiment of the present invention, as shown in fig. 5, the backend device further includes a network output module. The network output module is used for being connected with the network equipment, and the control module sends the image to the network equipment through the network output module after receiving the image. And the network equipment performs related operations after receiving the image. The model and the function of the network equipment are not limited in the embodiment of the invention.
Example 7:
in order to ensure the signal transmission through the coaxial cable after the front-end device and the back-end device, on the basis of the above embodiments, in the embodiment of the present invention, the front-end device further includes the second coupling module 115, and the back-end device further includes the first coupling module 126;
the second coupling module 115 is respectively connected with the state identification module 111, the second power supply module 114 and the serializer 113;
the first coupling module 126 is respectively connected to the deserializer 124, the first power module 122, the detection module 123 and the second coupling module 115;
the second coupling module 115 is configured to couple signals generated by the state identification module 111, the second power supply module 114, and the serializer 113 to obtain a first coupled signal, and send the first coupled signal to the first coupling module 126;
the first coupling module 126 is configured to couple signals generated by the deserializer 124, the first power module 122, and the detection module 123 to obtain a second coupled signal, and send the second coupled signal to the second coupling module 115;
the second coupling module 115 is further configured to separate the second coupled signal;
the first coupling module 126 is also used for separating the first coupled signal.
As shown in fig. 6, the front-end device of the separated camera according to the embodiment of the present invention further includes a second coupling module, and the back-end device further includes a first coupling module; the second coupling module is respectively connected with the state identification module, the second power supply module and the serializer; the first coupling module is respectively connected with the deserializer, the first power supply module, the detection module and the second coupling module.
In the embodiment of the invention, the coupling of the signals sent by the front-end equipment to the back-end equipment and the separation of the signals sent by the back-end equipment to the front-end equipment are realized through the second coupling module. The coupling of the signals sent by the back-end equipment to the front-end equipment and the separation of the signals sent by the front-end equipment to the back-end equipment are realized through the first coupling module. Thereby realizing the signal transmission through the coaxial cable after the front-end equipment and the back-end equipment. Specifically, signals generated by the state identification module, the second power supply module and the serializer are coupled through the second coupling module to obtain a first coupling signal, and the first coupling signal is sent to the first coupling module. And the second coupling module is used for separating the second coupling signal transmitted by the first coupling module. The first coupling module is used for coupling signals generated by the deserializer, the first power supply module and the detection module to obtain a second coupling signal, and the second coupling signal is sent to the second coupling module. And the first coupling module is used for separating the first coupling signal transmitted by the second coupling module.
It should be noted that, in the embodiment of the present invention, the number of the front-end devices is at least two; the number of the first power supply modules, the number of the detection modules and the number of the first coupling modules are correspondingly the same as the number of the front-end equipment. For example, one backend device can simultaneously support four front-end devices, the insertion and removal of one front-end device does not affect other front-end devices, and the front-end devices are used poorly when the backend device is in normal operation.
Fig. 7 is a schematic structural diagram of a separated camera according to an embodiment of the present invention, and fig. 7 illustrates that one back-end device and two front-end devices are included. Each front-end device comprises a state identification module, an image sensor, a serializer, a second power module and a second coupling module. The back-end equipment comprises two first coupling modules, two first power supply modules, two detection modules, a deserializer, a control module and a network output module.
Fig. 7 shows the basic structure and connection mode of a separated camera supporting hot plug operation, and a state recognition module, a detection module, a control module and the like are added on the basis of the traditional separated camera. Fig. 7 is a schematic diagram of two front-end devices and one back-end device interconnected coaxially, and the number of the front-end devices can be extended to 4 front-end devices or even more front-end devices according to the capability of the deserializer, and only the number of the first power supply module, the detection module and the first coupling module and the configuration of the control module need to be correspondingly increased. The hot plug operation of the coaxial split type camera is similar to the means of closed loop control, so that the whole control scheme is more accurate and effective.
In the drawings, the connection between each module in the front-end device and each module in the back-end device is represented by a connection line in the front-end device and the back-end device.
Example 8:
FIG. 8 is a schematic diagram of an electrical control process according to an embodiment of the present invention, the process including the steps of:
s101: controlling a detection module to be started, so that the detection module detects whether the front-end equipment is connected with the rear-end equipment;
s102: and receiving a detection result sent by the detection module, and controlling a first power module to supply power to the front-end equipment when the received detection result indicates that the front-end equipment is connected with the rear-end equipment.
The power supply control method provided by the embodiment of the invention is applied to a control module in back-end equipment, and in the embodiment of the invention, the control of the starting of a detection module comprises the following steps: and judging whether the image is received or not, and if not, controlling the detection module to be started. When the received detection result indicates that the front-end equipment is connected with the rear-end equipment, the detection module is controlled to be closed, and then the first power supply module is controlled to supply power to the front-end equipment. Before the control detection module is started, the method also comprises the step of sending function configuration information to the image sensor and the serializer respectively through the deserializer. The method also comprises the step of sending the received image to network equipment through the network output module.
Fig. 9 is a detailed flowchart of power supply control according to an embodiment of the present invention, where the flowchart shown in fig. 9 is performed for each front-end device, and as shown in fig. 9, the back-end device is powered on and started to determine whether an image is received, and if the image is not received, the detection module corresponding to the front-end device to be controlled is started. The detection module detects whether the front-end equipment is connected with the rear-end equipment or not and sends a detection result to the control module. And when the detection result received by the control module is that the front-end equipment is connected with the rear-end equipment, the control module closes the detection module and then controls the first power supply module to supply power to the front-end equipment. The control module sends function configuration information to the image sensor and the serializer through the deserializer respectively. The control module receives the image sent by the front-end equipment.
The control flow of the split camera supporting 4 head-end apparatuses is explained below.
The back-end equipment is normally powered on, and after the control module is started, whether the image data of the front-end equipment 1, 2, 3 and 4 are received or not is inquired. When the power is started, the front-end equipment does not work normally, and no image data exists at the moment. When detecting that the image data of at least one front-end device does not exist, the control module can sequentially start the detection modules corresponding to the front-end devices without the image data and judge whether the front-end devices are detected to be accessed. When the front-end equipment is detected to be accessed, the corresponding detection module is closed, then the power supply module corresponding to the front-end equipment is started to be normally powered on, then the control module sequentially configures the serializer and the image sensor through the deserializer, and the control module receives image data after the configuration is completed. As long as one front-end equipment is accessed, the front-end equipment can be kept in a normal working state. The control module polls whether the front-end equipment is accessed or not, when one front-end equipment is removed, the image data of the front-end equipment is lost, and as long as the image data of any one of the front-end equipment 1, 2, 3 and 4 is lost, the control module controls the corresponding detection module to be opened, and when the front-end equipment is accessed, an initialization process is triggered. Each front-end device is opposite to the deserializer, so when one front-end device works normally and another front-end device is accessed at the moment, the initialization configuration of the newly accessed front-end device cannot influence the front-end device which works normally, and the image can be displayed normally after the configuration of the newly accessed front-end device is completed.
The embodiment of the invention realizes a coaxial separation type camera with back-end equipment supporting access to multi-channel front-end equipment through an image sensor, a serializer, a control module, a deserializer and a corresponding software control strategy. The coaxial access hot plug operation of the front-end equipment is realized by combining the state identification module, the detection module and the control module. By combining the deserializer and the control module, the front-end equipment is supported to be connected, and the back-end equipment can keep a normal working state.
Fig. 10 is a schematic structural diagram of a power supply control device according to an embodiment of the present invention, where the device includes:
the first control unit 1011 is configured to control the detection module to be turned on, so that the detection module detects whether the front-end device is connected to the back-end device;
the second control unit 1012 is configured to receive the detection result sent by the detection module, and control the first power module to supply power to the front-end device when the received detection result indicates that the front-end device is connected to the back-end device.
The embodiment of the invention provides a separated camera, a power supply control method and a power supply control device, wherein the separated camera comprises: a front-end device and a back-end device; the rear-end equipment comprises a control module, a first power supply module and a detection module; the control module is connected with the detection module and is used for controlling the detection module to be started; the detection module is used for detecting whether the front-end equipment is connected with the rear-end equipment or not and sending a detection result to the control module; the control module is further connected with the first power module and is further used for controlling the first power module to supply power to the front-end equipment when the received detection result shows that the front-end equipment is connected with the rear-end equipment.
In the embodiment of the invention, the detection module in the back-end equipment determines whether the front-end equipment is connected with the back-end equipment or not and sends the detection result to the control module, and the control module controls the first power supply module to supply power to the front-end equipment when determining that the detection result is that the front-end equipment is connected with the back-end equipment. Thereby guaranteed that the rear end equipment is under the circumstances of power-on, determine earlier that the front end equipment is connected the back with the rear end equipment, for the front end equipment power supply again, avoided high-pressure burr phenomenon for the plug-and-play of front end equipment supports the operation of front end equipment hot plug.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A split camera, comprising: a front-end device and a back-end device; the rear-end equipment comprises a control module, a first power supply module and a detection module;
the control module is connected with the detection module and used for controlling the detection module to be started;
the detection module is used for detecting whether the front-end equipment is connected with the rear-end equipment or not and sending a detection result to the control module;
the control module is further connected with the first power supply module and is further used for controlling the first power supply module to supply power to the front-end equipment when the received detection result indicates that the front-end equipment is connected with the rear-end equipment;
the front-end equipment comprises a state identification module, and the state identification module is connected with the detection module;
the state identification module is used for outputting identification information of whether the front-end equipment is connected with the back-end equipment to the detection module;
the detection module is further used for judging whether the front-end equipment is connected with the back-end equipment or not according to the identification information output by the state identification module;
when the front-end equipment is not connected with the back-end equipment, the identification information output by the state identification module is high-level information, and when the front-end equipment is connected with the back-end equipment, the identification information output by the state identification module is low-level information;
the control module is further configured to control the detection module to be turned off before the first power module supplies power to the front-end device when the received detection result indicates that the front-end device is connected with the back-end device.
2. The separated camera as claimed in claim 1, wherein the control module is further configured to determine whether an image is received, and if not, control the detection module to be turned on.
3. A split camera as claimed in claim 1, wherein the front-end device further comprises an image sensor and a serializer, and the back-end device further comprises a deserializer;
the image sensor is connected with the serializer, the serializer is further connected with the deserializer, and the deserializer is further connected with the control module;
the image sensor is used for acquiring an image and sending the image to the serializer;
the serializer is used for converting the image into an image signal and transmitting the image signal to the deserializer through a cable;
and the deserializer is used for converting the image signal into an image and sending the image to the control module.
4. A split camera as claimed in claim 3, wherein the control module is further configured to send functional configuration information to the image sensor and the serializer, respectively, via the deserializer.
5. A split camera as claimed in claim 3, wherein the front end device further comprises a second power module;
the second power supply module is respectively connected with the image sensor, the serializer and the first power supply module;
the first power supply module is used for supplying power to the second power supply module;
the second power supply module is used for distributing required power supply voltage for the image sensor and the serializer respectively.
6. The detached camera of claim 1, wherein the backend device further comprises a network output module, the network output module being connected to the control module;
the control module is also used for sending the received image to network equipment through the network output module.
7. A split camera as claimed in claim 3, wherein the front-end device further comprises a second coupling module, and the back-end device further comprises a first coupling module;
the second coupling module is respectively connected with the state identification module, the second power supply module and the serializer;
the first coupling module is respectively connected with the deserializer, the first power supply module, the detection module and the second coupling module;
the second coupling module is used for coupling signals generated by the state identification module, the second power supply module and the serializer to obtain a first coupling signal and sending the first coupling signal to the first coupling module;
the first coupling module is used for coupling signals generated by the deserializer, the first power supply module and the detection module to obtain a second coupling signal and sending the second coupling signal to the second coupling module;
the second coupling module is further configured to separate the second coupled signal;
the first coupling module is further configured to separate the first coupled signal.
8. A split camera according to claim 7, wherein the number of the front-end apparatuses is at least two; the number of the first power supply module, the detection module and the first coupling module is the same as that of the front-end equipment.
9. A power supply control method, characterized in that the method comprises:
controlling a detection module to be started, so that the detection module detects whether the front-end equipment is connected with the rear-end equipment;
receiving a detection result sent by the detection module, and controlling a first power supply module to supply power to the front-end equipment when the received detection result indicates that the front-end equipment is connected with the rear-end equipment;
the front-end equipment comprises a state identification module, and the state identification module outputs identification information of whether the front-end equipment is connected with the back-end equipment to the detection module; the detection module judges whether the front-end equipment is connected with the back-end equipment or not according to the identification information output by the state identification module;
when the front-end equipment is not connected with the back-end equipment, the identification information output by the state identification module is high-level information, and when the front-end equipment is connected with the back-end equipment, the identification information output by the state identification module is low-level information;
and when the received detection result is that the front-end equipment is connected with the rear-end equipment, the detection module is controlled to be closed before the first power module is controlled to supply power to the front-end equipment.
10. A power supply control apparatus, characterized in that the apparatus comprises:
the first control unit is used for controlling the detection module to be started so that the detection module detects whether the front-end equipment is connected with the rear-end equipment;
the second control unit is used for receiving the detection result sent by the detection module, and controlling the first power supply module to supply power to the front-end equipment when the received detection result indicates that the front-end equipment is connected with the rear-end equipment;
the front-end equipment comprises a state identification module, and the state identification module outputs identification information of whether the front-end equipment is connected with the back-end equipment to the detection module; the detection module judges whether the front-end equipment is connected with the back-end equipment or not according to the identification information output by the state identification module;
when the front-end equipment is not connected with the back-end equipment, the identification information output by the state identification module is high-level information, and when the front-end equipment is connected with the back-end equipment, the identification information output by the state identification module is low-level information;
and when the received detection result is that the front-end equipment is connected with the rear-end equipment, the detection module is controlled to be closed before the first power module is controlled to supply power to the front-end equipment.
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| CN113364974A (en) * | 2021-04-30 | 2021-09-07 | 浙江大华技术股份有限公司 | Camera and camera hot-plug power supply control method |
| CN114706804A (en) * | 2022-03-30 | 2022-07-05 | 东风汽车集团股份有限公司 | Hot plug design system for display screen of IVI domain controller |
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