CN111443592A - Method and system for transmitting control right state of equipment - Google Patents
Method and system for transmitting control right state of equipment Download PDFInfo
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- CN111443592A CN111443592A CN202010214342.9A CN202010214342A CN111443592A CN 111443592 A CN111443592 A CN 111443592A CN 202010214342 A CN202010214342 A CN 202010214342A CN 111443592 A CN111443592 A CN 111443592A
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B9/00—Safety arrangements
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- G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
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Abstract
The invention provides a method for transmitting the control right state of equipment, which comprises the following steps: s1, the main control unit outputs the current weight state and transmits the weight state to the remote slave unit, wherein the weight state is represented by a high-low level signal or two mutually exclusive level signals; and S2, the remote slave unit selects a drive control channel and a signal acquisition channel according to the weight state of the master control unit, so that the state of the remote slave unit is consistent with the weight state of the master control unit. The method for transmitting the control right state of the equipment has simple, flexible, controllable and reliable implementation mode, and can realize the state switching of the slave equipment by switching the right state of the main control unit.
Description
Technical Field
The invention relates to the technical field of satellite-borne electronic equipment, in particular to a method and a system for transmitting an equipment control right state.
Background
With the increase of the function integration level of the satellite-borne electronic equipment, the interface relationship and the information interaction relationship between the equipment become more and more complex. In order to ensure the functional reliability of the satellite-borne device, the satellite-borne electronic device is usually backed up by two machines, and when one machine fails, the other machine works. For circuits with large current, high voltage, inductive load, capacitive load, etc., from the electromagnetic compatibility perspective, such functional circuits and digital circuits, especially embedded processor circuits, are commonly separated into two devices. The device composed of the embedded processor circuit and the related supporting circuits is generally called a master control unit, and a large-current driving circuit, a high-voltage driving circuit, an inductive load circuit, a capacitive load circuit and the like are dispersed in a plurality of remote slave units, and the remote slave units are controlled by the master control unit.
When the master unit is backed up by two machines, in order to ensure the correctness of the information executed by the remote slave unit and avoid repeated receiving of the data of the two machines of the master unit, the uniqueness of the information received by the remote slave unit is realized by controlling the master unit end, i.e. ensuring that only one machine (authorized machine) outputs the information. However, this method has a low reliability, and if the control end of the master unit is out of order, the communication with all the remote slave units may fail.
After searching the prior art, the invention patent application with application number 200710165568.9 provides a method and system for setting the status of a hardware device, which includes a memory, an application program, a general driver and a bios. The application program sends a request setting instruction and presets a definition content in the memory. When the general-purpose driver program obtains the setting request instruction, it obtains a header file from a certain block in the basic input output system and sets a sequence index code, and then sends out a control right transfer code according to the correct header file. The basic input and output system obtains the control right transfer code, sets the corresponding hardware device according to the control right transfer code and the definition content in the memory, and then stores the state data of the hardware device back to the memory so as to be captured by the application program. In the system, if the control end of the main control unit has abnormal functions, the follow-up work cannot be normally carried out.
Disclosure of Invention
In view of the defects in the prior art, the invention aims to provide a method for transferring the control right state of equipment.
The invention provides a method for transmitting the control right state of equipment, which comprises the following steps:
s1, the main control unit outputs the current control right state in real time and transmits the right state to the remote slave unit;
s2, the remote slave unit receives the right state signal output by the master unit;
s3, the remote slave unit automatically selects a controlled drive control channel or a signal acquisition channel according to the weight state of the master control unit;
s4, the remote slave unit is controlled by the master control unit to realize external drive control or signal acquisition;
s5, the remote slave unit feeds back the external drive control condition or the signal acquisition information to the master control unit for authorization;
and S6, when the master control unit right state changes, the remote slave unit switches the right state in real time, so that the remote slave unit state is consistent with the master control unit right state.
Further, the device comprises a main control unit and a plurality of (at least one) remote slave units, wherein the main control unit comprises a main control A machine and a main control B machine redundant backup, one machine is an authorized machine, and the other machine is an unauthorized machine; the remote slave unit comprises a remote slave A machine and a remote slave B machine redundancy device, the master A machine is connected with the remote slave A machine, and the master B machine is connected with the remote slave B machine.
Further, the current weight state of the master control unit is characterized by a level signal.
Furthermore, the weight state of the main control unit is represented by a high-low level signal or two mutually exclusive level signals, so that the real-time property of weight state transmission is realized.
Furthermore, the right state of the main control unit is represented by a high-low level signal, the high level represents that the main control machine A is a right machine and the main control machine B is an unauthorized machine, and the low level represents that the main control machine B is a right machine and the main control machine A is an unauthorized machine.
Furthermore, the right state of the main control unit uses a high level to represent that the main control machine B is a right machine and the main control machine A is an unauthorized machine, and a low level to represent that the main control machine A is a right machine and the main control machine B is an unauthorized machine.
Furthermore, the weight state of the main control unit is characterized by two mutually exclusive level signals, namely a weight A signal and a weight B signal; when the master control A machine has the right, the right A signal is grounded, and the right B signal is suspended; when the master B machine is authorized, the right A signal is suspended, and the right B signal is grounded.
A system for transferring the control right state of equipment comprises,
the master control unit is used for outputting the current control right state in real time and transmitting the right state to the remote slave unit;
the remote slave unit is used for receiving the right state signal output by the main control unit; automatically selecting a controlled drive control channel or a signal acquisition channel according to the right state of the main control unit, controlling by the main control unit to realize external drive control or signal acquisition, and feeding back external drive control conditions or signal acquisition information to the main control unit to be authorized; if the master control unit right state changes, the remote slave unit switches the right state in real time, and the remote slave unit state is consistent with the master control unit right state.
Compared with the prior art, the invention has the following beneficial effects:
1. the method for transmitting the control right state of the equipment has simple, flexible, controllable and reliable implementation mode, and can realize the state switching of the slave equipment by switching the right state of the main control unit.
2. The method for transmitting the equipment control right state controls the receiving end of the remote slave unit to enable the remote slave unit to receive and execute the information of the authorized machine, and the main control unit does not need to carry out output control. The method is realized by each remote slave unit independently, the influence of failure is small, and the reliability is high.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic diagram of the transmission of a weight signal between a master unit and a remote slave unit according to the present invention;
FIG. 2 is a diagram illustrating exemplary states of high and low level signal representation according to the present invention;
FIG. 3 is a diagram of a two-level signal token weight state weight signal according to the present invention;
FIG. 4 is a diagram illustrating two-level signal token-weighted state driving control according to the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
The method for transmitting the equipment control right state provided by the invention has the advantages of simple, flexible, controllable and reliable implementation mode, and the state switching of the slave equipment can be realized by switching the right state of the main control unit. The equipment comprises a main control unit and a plurality of remote slave units, wherein the main control unit comprises a main control A machine and a main control B machine redundant backup, one machine is an authorized machine, and the other machine is an unauthorized machine; the remote slave unit comprises a remote slave A machine and a remote slave B machine redundancy device, the master A machine is connected with the remote slave A machine, and the master B machine is connected with the remote slave B machine.
The present invention will be described in further detail below.
The invention also provides a system for transmitting the control right state of the equipment, which comprises,
the master control unit is used for outputting the current control right state in real time and transmitting the right state to the remote slave unit;
the remote slave unit is used for receiving the right state signal output by the main control unit; automatically selecting a controlled drive control channel or a signal acquisition channel according to the right state of the main control unit, controlling by the main control unit to realize external drive control or signal acquisition, and feeding back external drive control conditions or signal acquisition information to the main control unit to be authorized; if the master control unit right state changes, the remote slave unit switches the right state in real time, and the remote slave unit state is consistent with the master control unit right state.
The invention also provides a method for transmitting the control right state of the equipment, which comprises the following steps:
s1, the main control unit outputs the current control right state in real time and transmits the right state to the remote slave unit, the right state of the main control unit is represented by a high-low level signal or two mutually exclusive level signals, and the real-time property of the right state transmission is realized; when the right state of the main control unit is represented by a high-low level signal, the high level is used for representing that the main control machine A is a right machine and the main control machine B is a no-right machine, and the low level is used for representing that the main control machine B is a right machine and the main control machine A is a no-right machine; or the right state of the main control unit uses high level to represent that the main control B machine is a right machine, the main control A machine is an unauthorized machine, and the low level to represent that the main control A machine is a right machine and the main control B machine is an unauthorized machine. When the weight state of the main control unit is characterized by two mutually exclusive level signals, the weight state is a weight A signal and a weight state is a weight B signal; when the master control A machine has the right, the right A signal is grounded, and the right B signal is suspended; when the master control B machine has the right, the right A signal is suspended, and the right B signal is grounded;
s2, the remote slave unit receives the right state signal output by the master unit;
s3, the remote slave unit automatically selects a controlled drive control channel or a signal acquisition channel according to the weight state of the master control unit;
s4, the remote slave unit is controlled by the master control unit to realize external drive control or signal acquisition;
s5, the remote slave unit feeds back the external drive control condition or the signal acquisition information to the master control unit for authorization;
and S6, when the master control unit right state changes, the remote slave unit switches the right state in real time, so that the remote slave unit state is consistent with the master control unit right state.
Taking a master control unit and a remote slave unit as an example, as shown in fig. 1, the master control unit is a master a machine and a master B machine, which are redundant backups, wherein one machine is an authorized machine and the other machine is an unauthorized machine; the master control unit realizes drive control and signal acquisition through the remote slave unit; the remote slave unit is a remote slave A machine and a remote slave B machine dual-machine redundant device, the master control A machine is connected with the remote slave A machine, and the master control B machine is connected with the remote slave B machine; the master control unit outputs the current right state and transmits the right state to the remote slave unit; and the remote slave unit selects a driving control channel and a signal acquisition channel according to the right state of the master control unit.
The weight state may be characterized by a high-low signal, as shown in fig. 2. A magnetic latching relay connected in parallel with the right state switching can be designed in the main control unit, a contact at the end of the relay 1 is led out to the remote slave unit, the remote slave unit is pulled up by 5V, and a contact at the end of the relay 2 is suspended. When the master control A machine has the right, the relay is opened to the end 1, namely the end 1 is grounded, so that the enabling signal of the interface of the remote slave unit is in a low level, and the interface is effective. When the master control B machine has the right, the relay is opened to the 2 end, namely the 1 end is suspended, so that the enabling signal of the interface of the remote slave unit is in a high level, and the interface is invalid.
The weight states may be characterized by two mutually exclusive level signals, such as those shown in fig. 3 and 4. Fig. 3 shows a relay circuit of the remote slave unit, K1A is a relay, the relay control voltage is 29V, and the diodes V1, V2, V3 and V4 are back emf cancellation protection circuits when the weight a signal or the weight B signal is valid, and the weight a signal and the weight B signal are given by the master control unit. Two 3DD155E of FIG. 4 are respectively driven triodes controlled by the main control unit, when the main control unit A machine or B machine outputs high level to the base of the triode, the collector and emitter are low-resistance, 28V is conducted to the ground, magnetic control current is generated at the magnetic torquer end, the relay contact signal 1 end and the relay contact signal 2 end are controlled by the relay circuit of FIG. 3, and the right state control of the drive circuit of FIG. 4 is realized by the relay circuit of FIG. 3. When the master control unit A has the right, the signal of the right A is grounded, the relay is opened to the end 1 shown in figure 4, and the drive circuit of the remote slave unit in figure 4 is controlled by the DA of the master control unit A. When the master unit B has the right, the signal of the right B is grounded, the relay is directed to the end 2 shown in figure 4, and the drive circuit of the remote slave unit in figure 4 is controlled by the DA of the master unit B.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
Those skilled in the art will appreciate that, in addition to implementing the systems, apparatus, and various modules thereof provided by the present invention in purely computer readable program code, the same procedures can be implemented entirely by logically programming method steps such that the systems, apparatus, and various modules thereof are provided in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Therefore, the system, the device and the modules thereof provided by the present invention can be considered as a hardware component, and the modules included in the system, the device and the modules thereof for implementing various programs can also be considered as structures in the hardware component; modules for performing various functions may also be considered to be both software programs for performing the methods and structures within hardware components.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (8)
1. A method for transferring the control right state of equipment is characterized by comprising the following steps:
s1, the main control unit outputs the current control right state in real time and transmits the right state to the remote slave unit;
s2, the remote slave unit receives the right state signal output by the master unit;
s3, the remote slave unit automatically selects a controlled drive control channel or a signal acquisition channel according to the weight state of the master control unit;
s4, the remote slave unit is controlled by the master control unit to realize external drive control or signal acquisition;
s5, the remote slave unit feeds back the external drive control condition or the signal acquisition information to the master control unit for authorization;
and S6, when the master control unit right state changes, the remote slave unit switches the right state in real time, so that the remote slave unit state is consistent with the master control unit right state.
2. The method for transferring the control right status of the device according to claim 1, wherein the device comprises a master control unit and a plurality of remote slave units, the master control unit comprises a master control machine a and a master control machine B for redundant backup, one of the machines is a privileged machine, and the other machine is an unauthorized machine; the remote slave unit comprises a remote slave A machine and a remote slave B machine redundancy device, the master A machine is connected with the remote slave A machine, and the master B machine is connected with the remote slave B machine.
3. The method for transferring the device control right state according to claim 1, wherein the current right state of the master control unit is characterized by a level signal.
4. The method as claimed in claim 3, wherein the weight status of the master control unit is represented by one high/low level signal or two mutually exclusive level signals, so as to implement real-time transmission of the weight status.
5. The method as claimed in claim 4, wherein the weight status of the master unit is characterized by a high/low level signal, the high level signal is used to characterize the master A machine as a entitled machine and the master B machine as an unauthorized machine, and the low level signal is used to characterize the master B machine as an entitled machine and the master A machine as an unauthorized machine.
6. The method as claimed in claim 4, wherein the right state of the master unit is characterized by a high level indicating that the master B machine is a entitled machine and the master A machine is an unauthorized machine, and a low level indicating that the master A machine is an entitled machine and the master B machine is an unauthorized machine.
7. The method for transferring the device control right state according to claim 4, wherein the right state of the master control unit is characterized by two mutually exclusive level signals, namely a right A signal and a right B signal; when the master control A machine has the right, the right A signal is grounded, and the right B signal is suspended; when the master B machine is authorized, the right A signal is suspended, and the right B signal is grounded.
8. A system for transferring the control right status of a device, comprising,
the master control unit is used for outputting the current control right state in real time and transmitting the right state to the remote slave unit;
the remote slave unit is used for receiving the right state signal output by the main control unit; automatically selecting a controlled drive control channel or a signal acquisition channel according to the right state of the main control unit, controlling by the main control unit to realize external drive control or signal acquisition, and feeding back external drive control conditions or signal acquisition information to the main control unit to be authorized; if the master control unit right state changes, the remote slave unit switches the right state in real time, and the remote slave unit state is consistent with the master control unit right state.
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