CN111060735A - Low-voltage intelligent measurement and control system and method - Google Patents
Low-voltage intelligent measurement and control system and method Download PDFInfo
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- CN111060735A CN111060735A CN201911398893.9A CN201911398893A CN111060735A CN 111060735 A CN111060735 A CN 111060735A CN 201911398893 A CN201911398893 A CN 201911398893A CN 111060735 A CN111060735 A CN 111060735A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
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Abstract
The invention relates to the technical field of low-voltage power distribution systems, in particular to a low-voltage intelligent measurement and control system and a method, wherein the low-voltage intelligent measurement and control system comprises a measurement and control body, wherein the measurement and control body comprises a shell, and a phase current module, a switching value module, a processing module, a phase voltage module, a power module and an electric degree module are arranged in the shell; the processing module acquires phase current and controls a multi-circuit of the switching value module to act; the phase voltage module detects multi-path phase voltages of the power system, and the processing module controls the switching value module to act according to the phase voltages; the power module detects multi-path power in the power system, and the processing module acquires the power and controls the switching value module to act; the electric degree module detects the electric degree number in the electric power system, and the processing module obtains the electric degree number and controls the switching value action. The invention is convenient for separating the measuring lines of all parameters to quickly distinguish, and the modules in the measurement and control body are used for carrying out centralized parameter measurement on the power system, thereby reducing the wiring difficulty and the later maintenance time.
Description
Technical Field
The invention relates to the technical field of low-voltage power distribution systems, in particular to a low-voltage intelligent measurement and control system and a method.
Background
The low-voltage power system is an important part for transmitting electric energy required by people in life and work, and the measurement and control of the low-voltage power system are related to the safe operation of the whole system, so that the continuity of power utilization is ensured. The existing low-voltage power system carries out measurement and control on related safety factors through a thermal relay, a thermal protector, a leakage protector, an under-voltage protector and the like, but has the defects of more additional elements, high wiring difficulty and long time spent on distinguishing wiring cables during later maintenance and repair.
Disclosure of Invention
The invention aims to provide a low-voltage intelligent measurement and control system to solve the problems of high wiring difficulty and long later maintenance time.
The low-voltage intelligent measurement and control system comprises a measurement and control body, wherein the measurement and control body comprises a shell, and a phase current module, a switching value module, a processing module, a phase voltage module, a power module and an electric degree module are arranged in the shell;
the phase current module is in signal connection with the processing module and detects multi-path phase currents, the switching value module is in signal connection with the processing module, and the processing module acquires the phase currents and controls the multi-path circuits of the switching value module to act;
the phase voltage module is connected with the processing module through signals, the phase voltage module detects multi-path phase voltages of the power system, and the processing module controls the switching value module to act according to the phase voltages;
the power module is in signal connection with the processing module, the power module detects multiple paths of power in the power system, and the processing module acquires the power and controls the switching value module to act;
the electric degree module is in signal connection with the processing module, detects the electric degree number in the electric power system, and the processing module obtains the electric degree number and controls the switching value action.
The beneficial effect of this scheme is:
a plurality of parameters of the electric power system are measured respectively through a plurality of modules in the measurement and control body, for example, phase current, phase voltage, power, electric power and the like, then the action of the switching value module is controlled according to the measured parameters, different parameters are measured through different modules, the measurement lines of all the parameters are separated conveniently, the parameters of the electric power system are measured in a centralized mode through the modules in the measurement and control body, the wiring difficulty is reduced, and the time for maintenance in the later period is shortened.
The switching value module is used for receiving the switching value of the switching value module and sending the switching value to the processing module.
The beneficial effects are that: different parameters are measured and the action of the switching value module is controlled to record and store, so that corresponding measurement and control record information can be conveniently checked at any time.
Furthermore, the shell is provided with interfaces for inputting/outputting data of the phase current module, the switching value module, the phase voltage module, the power module and the electric power module, and the interfaces are uniformly distributed on the periphery of the shell.
The beneficial effects are that: the detection or data transmission of each module is carried out through the interface on the shell, so that the wiring is convenient, the interfaces with different functions are distinguished, and the time for subsequent maintenance is reduced.
Further, the intelligent power supply device further comprises a self-checking module and an alarm module, wherein the self-checking module is used for detecting the abnormal current of the interface and sending an abnormal signal to the processing module, the processing module sends alarm information to the alarm module after receiving the abnormal signal, and the alarm module gives an alarm according to the alarm information.
The beneficial effects are that: the abnormal current of each interface is detected through the self-checking module, alarm information is sent to the processing module to give an alarm when the interfaces are abnormal, and the intelligent automatic detection device is more intelligent and is convenient to find the abnormality of the interfaces in time.
Further, be equipped with the circuit board in the shell, phase current module, switching value module, processing module, looks voltage module, power module, electric degree module, storage module, self-checking module and alarm module electricity are connected on the circuit board, be equipped with the joint of a plurality of clamp wires on the circuit board week edge, joint and interface one-to-one, spiral helicine buffer tube has set firmly between the inner wall of joint and shell.
The beneficial effects are that: set up each module to the circuit board on, and set up the joint that corresponds with the interface on the circuit board, then pass through the unsettled setting of spiral helicine buffer tube with the circuit board in the shell, can prevent when observing and controling the body and receive vibrations that each module from receiving vibrations and influence observing and controling, improve the shockproof effect of observing and controling the body.
Furthermore, the bayonet joint becomes the ring form, threaded connection has two to revolve to twist the head on the bayonet joint, it just sets up to revolve to twist the head, it is the cambered surface to twist the head to be located the terminal surface that the bayonet joint.
The beneficial effects are that: the clamping head clamps the lead by screwing the two screwing heads and clamping the lead through the end faces of the screwing heads, so that the buffer tube is prevented from being pulled to the joint of the lead and the interface when buffering vibration.
Further, the buffer tube is formed by winding a wire in a spiral.
The beneficial effects are that: the connected wires are wound into a spiral shape to perform vibration buffering, the length of the reserved wires is increased, and subsequent maintenance is facilitated.
Furthermore, a rubber layer is fixedly arranged on the end face of the screw head positioned in the clamping head.
The beneficial effects are that: when the end face of the screwing head contacts with the lead, the rubber layer is soft and elastic, and the phenomenon that the lead hoop is too tight to cause the internal copper wire to be broken by the screwing head is avoided.
Furthermore, a shielding layer is arranged outside the lead.
The beneficial effects are that: when the wire is used as a buffer component, the shielding layer avoids electromagnetic interference of the wire.
The low-voltage intelligent measurement and control method applies the low-voltage intelligent measurement and control system.
Drawings
Fig. 1 is a logic block diagram of a medium and low voltage intelligent measurement and control system according to an embodiment of the invention;
fig. 2 is a longitudinal sectional view of a housing in a medium and low voltage intelligent measurement and control system according to an embodiment of the invention;
fig. 3 is a longitudinal sectional view of the snap connector of fig. 2.
Detailed Description
The following is a more detailed description of the present invention by way of specific embodiments.
Reference numerals in the drawings of the specification include: the connector comprises a shell 1, a circuit board 2, a clamping joint 3, a screwing head 4, a buffer tube 5, an interface 6 and a rubber layer 7.
Example one
Low pressure intelligence observes and controls system, as shown in FIG. 1: including observing and controling the body, it includes shell 1 to observe and control the body, be equipped with the phase current module in the shell 1, the switching value module, processing module, the looks voltage module, power module, the electricity degree module, self-checking module and alarm module, processing module can use current haisi brand SOC chip, the joint has the phase current module on the shell 1, the switching value module, the looks voltage module, the interface 6 of the input/output data of power module and electricity degree module, the input/output data's of each module interface 6 corresponds with the pin order of singlechip, interface 6 evenly arranges on shell 1 is all around.
As shown in fig. 2, install circuit board 2 in shell 1, the phase current module, the switching value module, processing module, the looks voltage module, power module, the electricity degree module, memory module, self-checking module and alarm module electricity are connected on circuit board 2, the welding has joint 3 of a plurality of clamp wire on 2 peripheries of circuit board, joint 3 and interface 6 one-to-one, the welding has spiral form buffer tube 5 between joint 3 and the inner wall of shell 1, the both ends of buffer tube 5 weld respectively on joint 3 and shell 1 inner wall promptly.
As shown in fig. 3, the bayonet joint 3 is annular, two screwing heads 4 are connected to the bayonet joint 3 through threads, the screwing heads 4 are arranged opposite to each other, the screwing heads 4 are located on the end face of the bayonet joint 3 and are cambered surfaces, and a rubber layer 7 is bonded on the end face of the screwing heads 4 located in the bayonet joint 3.
The low-voltage intelligent measurement and control method based on the low-voltage intelligent measurement and control system comprises the following contents:
the phase current module is connected with the processing module through signals and detects multi-path phase currents, the phase current module is enabled to detect the phase currents in an electromagnetic induction mode, the switching value module is connected with the processing module through signals, the processing module obtains the phase currents and controls the multi-path circuit of the switching value module to act, and for example, the switching value module is controlled to be disconnected when the phase currents are too large.
The phase voltage module is connected with the processing module through signals, the phase voltage module is used for measuring phase voltages in an electromagnetic induction mode, the phase voltage module is used for detecting multi-path phase voltages of the power system, for example, one-path phase voltage, two-path phase voltage and three-path phase voltage are respectively measured according to different pins, and the processing module is used for controlling the switching value module to act according to the phase voltages.
The power module is connected with the processing module through signals, the power module detects multi-path power in the power system, the multi-path power can be the power of a plurality of lines, each line is distinguished through different pins, and the processing module obtains the power and controls the switching value module to act.
The electric degree module is connected with the processing module through signals, the electric degree module is used for detecting the electric degree number in the power system, the electric degree module uses the existing electric degree measuring method for measuring, for example, the electric degree measuring principle in a watt-hour meter, and the processing module obtains the electric degree number and controls the switching value action.
And the processing module sends record information to the storage module when the switching value module acts, the storage module is used for storing the record information, and the record information can be that the switching value module is switched off when the phase current is greater than a certain value.
In the working process of each module, the self-checking module detects the abnormal current of the interface 6 and sends an abnormal signal to the processing module, the detecting module can be a numerical value comparison circuit to detect the abnormal current, the processing module sends alarm information to the alarm module after receiving the abnormal signal, the alarm module can give an alarm through an optical signal, the alarm module can give an alarm through an acoustic signal, and the alarm module gives an alarm according to the alarm information.
In observing and controling the body use, when observing and controling the body and shaking because of external force, because the heliciform of buffer tube 5, be equivalent to the spring, circuit board 2 is because of not fixed completely, circuit board 2 can produce the displacement because of shaking, extrude buffer tube 5 and produce deformation, and circuit board 2 can not directly extrude and strike the inner wall of shell 1, can prevent when observing and controling the body and receive vibrations that each module from receiving vibrations and influencing the observing and controlling, improve the shockproof effect of observing and controlling the body, simultaneously, the end of screwing head 4 fixed wire on the screwing card joint 3, can not tear the wire, avoid buffer tube 5 to tear the connector of wire and interface 6 when buffering vibrations.
In this embodiment first each parameter measurement with among the electric power system distributes each interface 6 to interface 6 distinguishes corresponding parameter or wiring operation, again according to the action of measured parameter control switching value module, different parameters measure through different modules, are convenient for separate the measuring line of each parameter, with quick discernment, concentrate the parameter measurement who carries out electric power system through the module of observing and controling the body inside, reduce the wiring degree of difficulty, reduce long when the maintenance in later stage.
Example two
The difference with the first embodiment is that the buffer tube 5 is formed by winding a wire into a spiral shape, a shielding layer is arranged outside the wire and can be made of aluminum, the wire is directly wound into the buffer tube 5 to be used as a buffering part, the length of the reserved wire is increased, meanwhile, the structure that the buffer tube 5 is used alone for buffering is simplified, the wire is directly used for buffering to facilitate subsequent maintenance, and the shielding layer avoids electromagnetic interference of the wire after the wire is wound into the spiral shape.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. Low pressure intelligence system of observing and controling, including observing and controling the body, observe and control the body and include shell, its characterized in that: a phase current module, a switching value module, a processing module, a phase voltage module, a power module and an electric degree module are arranged in the shell;
the phase current module is in signal connection with the processing module and detects multi-path phase currents, the switching value module is in signal connection with the processing module, and the processing module acquires the phase currents and controls the multi-path circuits of the switching value module to act;
the phase voltage module is connected with the processing module through signals, the phase voltage module detects multi-path phase voltages of the power system, and the processing module controls the switching value module to act according to the phase voltages;
the power module is in signal connection with the processing module, the power module detects multiple paths of power in the power system, and the processing module acquires the power and controls the switching value module to act;
the electric degree module is in signal connection with the processing module, detects the electric degree number in the electric power system, and the processing module obtains the electric degree number and controls the switching value action.
2. The low-voltage intelligent measurement and control system according to claim 1, characterized in that: the switching value module is used for receiving the switching value of the switching value module and sending the switching value to the processing module.
3. The low-voltage intelligent measurement and control system according to claim 2, characterized in that: the shell is provided with interfaces for inputting/outputting data of the phase current module, the switching value module, the phase voltage module, the power module and the electric power module, and the interfaces are uniformly distributed on the periphery of the shell.
4. The low-voltage intelligent measurement and control system according to claim 3, characterized in that: the intelligent power supply system is characterized by further comprising a self-checking module and an alarm module, wherein the self-checking module is used for detecting abnormal current of the interface and sending an abnormal signal to the processing module, the processing module sends alarm information to the alarm module after receiving the abnormal signal, and the alarm module gives an alarm according to the alarm information.
5. The low-voltage intelligent measurement and control system according to claim 4, characterized in that: be equipped with the circuit board in the shell, phase current module, switching value module, processing module, looks voltage module, power module, electric degree module, storage module, self-checking module and alarm module electricity are connected on the circuit board, be equipped with the joint of a plurality of clamp wires on the circuit board week edge, joint and interface one-to-one, spiral helicine buffer tube has set firmly between the inner wall of joint and shell.
6. The low-voltage intelligent measurement and control system according to claim 5, characterized in that: the clamping joint is in a circular ring shape, two screwing heads are connected to the clamping joint in a threaded mode and are arranged right opposite to each other, and the screwing heads are located on the end face of the clamping joint and are cambered surfaces.
7. The low-voltage intelligent measurement and control system according to claim 5, characterized in that: the buffer tube is formed by winding a wire in a spiral.
8. The low-voltage intelligent measurement and control system according to claim 6, characterized in that: and a rubber layer is fixedly arranged on the end surface of the screwing head positioned in the clamping head.
9. The low-voltage intelligent measurement and control system according to claim 7, characterized in that: and a shielding layer is arranged outside the lead.
10. A low-voltage intelligent measurement and control method using the low-voltage intelligent measurement and control system according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911398893.9A CN111060735A (en) | 2019-12-30 | 2019-12-30 | Low-voltage intelligent measurement and control system and method |
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| CN201911398893.9A CN111060735A (en) | 2019-12-30 | 2019-12-30 | Low-voltage intelligent measurement and control system and method |
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| CN111060735A true CN111060735A (en) | 2020-04-24 |
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Application publication date: 20200424 |
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