CN111638440B - Circuit field intelligent diagnosis device and method based on electrochromic device - Google Patents
Circuit field intelligent diagnosis device and method based on electrochromic device Download PDFInfo
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- CN111638440B CN111638440B CN202010495052.6A CN202010495052A CN111638440B CN 111638440 B CN111638440 B CN 111638440B CN 202010495052 A CN202010495052 A CN 202010495052A CN 111638440 B CN111638440 B CN 111638440B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
- G01R31/2836—Fault-finding or characterising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/38—Arrangements for altering the indicating characteristic, e.g. by modifying the air gap
Abstract
The invention discloses a circuit field intelligent diagnosis device and method based on electrochromic device, the device includes: the direct current power supply, the DI module and the ESD button are sequentially connected in series, the direct current power supply and the DI module are arranged in the control room, and the ESD button is arranged on the site side; the ESD button is formed by connecting an ESD button switch and a diagnosis resistor in parallel; and the keys of the ESD button switch are provided with electrochromic devices which are connected in series, so that the fault diagnosis is carried out on the loop of the DI module according to the colors of the electrochromic devices. The method comprises the following steps: after the contact of the ESD button switch is closed, fault diagnosis is carried out on a loop of the DI module according to different colors of the electrochromic device, so that when the electrochromic device is in a color different from the initial state, corresponding fault treatment is carried out on the safety instrument system, and the initial state is the color presented by the electrochromic device when the contact of the ESD button switch is not closed.
Description
Technical Field
The invention relates to the technical field of self-diagnosis functions, in particular to a circuit field intelligent diagnosis device and method based on an electrochromic device.
Background
The safety production problem faced by the process industries of petroleum, petrochemical industry, electric power, new energy and the like is increasing in demand for safety products with self-diagnostic function, and products with intelligent self-diagnostic function, such as surge protectors, ESD explosion-proof emergency stop buttons, explosion-proof acousto-optic alarms, relays, safety barriers and the like are provided. The functional safety product with the diagnosis resistor can convert the invisible faults of the safety loop of the safety instrument system into the dominant faults, so that the safety availability of the safety instrument system is improved, spurious tripping is not caused, and the requirements of the safety instrument system standard are met.
The principle of self diagnosis of the ESD explosion-proof emergency stop button in the safety instrument system is as follows: normally, the ESD button contacts are not closed. The loop is communicated through a parallel resistor, and diagnostic current (between 1.2 and 1.5 mA) is in the loop, which indicates that the DI module loop of the ESD button is normal. When the ESD button is pressed, the contact is closed, the DI loop of the safety instrument system crosses the parallel resistor, the current in the loop is between 2 and 13mA, namely, a parking protection program of the safety instrument system is triggered, and the regional power supply flow is cut off. When any part of the DI loop cable is disconnected, no current exists in the DI loop of the safety instrument system, namely the current in the DI loop is less than 1.2mA, the safety instrument system immediately alarms to remind an operator to check the physical circuit, and the invisible fault in the safety instrument system is represented as a display fault.
The existing self-diagnosis technology mainly judges whether a fault occurs through the high-low change of the DI loop current, and the main component of the existing self-diagnosis technology is a diagnosis resistor. Whether the diagnosis resistor is invalid or not and whether the resistance values are matched or not determine the realization of the diagnosis function, whether the diagnosis resistor is damaged or not during product packaging or not cannot be judged or maintained by a user, and therefore the situation that the diagnosis error of the safety instrument system possibly occurs is caused.
Disclosure of Invention
In order to solve the above problems, the present invention provides an apparatus and a method for intelligent diagnosis of a circuit site based on an electrochromic device.
The invention provides a circuit field intelligent diagnosis device based on an electrochromic device, which comprises:
the direct current power supply, the DI module and the ESD button are sequentially connected in series, the direct current power supply and the DI module are arranged inside the control room, and the ESD button is arranged on the field side outside the control room;
the ESD button comprises an ESD button switch and a diagnosis resistor which are arranged in parallel;
an electrochromic device is arranged on a key of the ESD button switch, and a contact of the ESD button switch is connected with the electrochromic device in series, so that fault diagnosis is carried out on a loop of the DI module according to the color of the electrochromic device.
As a further improvement of the invention, the electrochromic device is a layered structure formed by sequentially laminating a first substrate layer, a first transparent electrode, an ion storage layer, an ion conductor layer, an electrochromic layer, a second transparent electrode and a second substrate layer.
As a further improvement of the present invention, the contacts of the ESD push-button switch are connected in series with the electrochromic device through the first transparent electrode and the second transparent electrode.
As a further improvement of the invention, the first substrate layer and the second substrate layer are made of common glass or transparent plastic.
As a further improvement of the present invention, the first transparent electrode and the second transparent electrode are one or more of indium tin oxide, fluorine-doped tin oxide, aluminum-doped zinc oxide and transparent metal mesh.
As a further development of the invention, the ion storage layer is aniline, ferrocene, nickel oxide, cerium oxide or iridium oxide.
As a further improvement of the invention, the ion conductor layer is LiTaO 3 Or LiNbO 3 Or a polymer gel of a metal salt.
As a further improvement of the invention, the electrochromic layer is one or more of tungsten oxide, molybdenum oxide, titanium oxide, prussian blue, polythiophene, viologen and terpyridine-metal complex.
The invention also provides a circuit field intelligent diagnosis method based on the electrochromic device, which comprises the following steps:
after the contact of the ESD button switch is closed, fault diagnosis is carried out on a loop of the DI module according to different colors of an electrochromic device, so that corresponding fault treatment is carried out on a safety instrument system when the electrochromic device is different from an initial state in color, wherein the initial state is the color presented by the electrochromic device when the contact of the ESD button switch is not closed.
As a further improvement of the present invention, after the contacts of the ESD button switch are closed, the fault diagnosis of the loop of the DI module is performed according to different colors of the electrochromic device, including:
after the contact of the ESD button switch is closed, the loop current of the DI module flows through the electrochromic device through the ESD button switch, so that the electrochromic device is in different colors.
The invention has the beneficial effects that: by combining the self-diagnosis resistor and the ESD button of the electrochromic device, the hidden fault in the loop of the safety instrument system is converted into the dominant fault, and the warning can be simultaneously given in a control room and on site, so that the safety usability of the safety instrument is improved, and spurious tripping is not caused.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is an equivalent circuit diagram of a circuit field intelligent diagnosis device based on an electrochromic device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an electrochromic device in a circuit field intelligent diagnosis apparatus based on an electrochromic device according to an embodiment of the present invention.
In the figure, the position of the upper end of the main shaft,
1. a direct current power supply; 2. a DI module; 3. an electrochromic device; 31. a first substrate layer; 32. a first transparent electrode; 33. an ion storage layer; 34. an ion conductor layer; 35. an electrochromic layer; 36. a second transparent electrode; 37. a second substrate layer; 4. an ESD push-button switch; 5. and (6) diagnosing the resistance.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, in the description of the present invention, the terms used are for illustrative purposes only and are not intended to limit the scope of the present invention. The terms "comprises" and/or "comprising" are used to specify the presence of stated elements, steps, operations, and/or components, but do not preclude the presence or addition of one or more other elements, steps, operations, and/or components. The terms "first," "second," and the like may be used to describe various elements, not necessarily order, and not necessarily limit the elements. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified. These terms are only used to distinguish one element from another. These and/or other aspects will become apparent to those of ordinary skill in the art in view of the following drawings, and the description of the embodiments of the present invention will be more readily understood by those of ordinary skill in the art. The figures depict described embodiments of the present invention for purposes of illustration only. One skilled in the art will readily recognize from the following description that alternative embodiments of the structures and methods illustrated in the present application may be employed without departing from the principles described in the present application.
Embodiment 1, as shown in fig. 1-2, a circuit field intelligent diagnosis device based on electrochromic device according to embodiment 1 of the present invention comprises:
the control system comprises a direct current power supply 1, a DI module 2 and an ESD button which are sequentially connected in series, wherein the direct current power supply 1 and the DI module 2 are arranged in a control room, and the ESD button is arranged on the field side outside the control room;
the ESD button comprises an ESD button switch 4 and a diagnosis resistor 5 which are arranged in parallel;
the keys of the ESD button switch 4 are provided with electrochromic devices 3, and contacts of the ESD button switch 4 are connected with the electrochromic devices 3 in series, so that fault diagnosis is performed on the loop of the DI module 2 according to the colors of the electrochromic devices 3.
This application is through setting up electrochromic device 3 on ESD button switch 4's button, when button switch 4's contact disconnection or closure, the electric current that flows through electrochromic device 3 will change, thereby can make electrochromic device 3's colour change promptly, set up the ESD button in the scene side outside the control room simultaneously, the field work personnel can judge whether the safety instrument return circuit breaks down through electrochromic device 3's colour, avoid missing the investigation because of not hearing the indoor chimes of doom. This application combines together the two organic of shell of relatively independent inner circuit and ESD button in the traditional safety instrument system, directly outputs the diagnostic result through the colour of electrochromic device 3 on the ESD button switch 4 button with a series of changes in the inner circuit of safety instrument system, and different colours are shown to different diagnostic results, play dual safety warning effect, and are more directly perceived moreover. The electrochromic device 3 may be disposed at other positions of the ESD button, not limited to the keys of the ESD button switch 4, as long as the diagnostic result can be directly observed from the housing of the ESD button. The resistance value of the diagnosis resistor 5 is obtained by an impedance adaptive matching method according to the diagnosis resistance value requirement of the DI module 2. The resistance value of the diagnosis resistor 5 is obtained through the impedance self-adaption matching method, so that the DI module 2 and the diagnosis resistor 5 can be precisely matched, and spurious tripping of a self-diagnosis function caused by mismatching of the resistance values of the diagnosis resistor 5 is avoided.
Further, the electrochromic device 3 is a layered structure formed by sequentially laminating a first substrate layer 31, a first transparent electrode 32, an ion storage layer 33, an ion conductor layer 34, an electrochromic layer 35, a second transparent electrode 36, and a second substrate layer 37. The ion storage layer 33, the ion conductor layer 34 and the electrochromic layer 35 form a sandwich structure, and the electrochromic layer 35 is a main conducting layer for dimming of the electrochromic device 3, and changes light transmittance when ions are embedded or removed, and corresponds to a colored state and a transparent state respectively. The ion storage layer 33 and the electrochromic layer 35 constitute a counter electrode, which can form a color complementary. And the ion conductor layer 34 provides mobile ions between the electrochromic layer 35 and the ion storage layer 33.
Further, the contacts of the ESD push-button switch 4 are connected in series with the electrochromic device 3 through the first transparent electrode 32 and the second transparent electrode 36. One end of the contact of the ESD button switch 4 in this embodiment is connected to the first transparent electrode 32 by a wire, and the other end of the contact of the ESD button switch 4 is connected to the opposite end of the second transparent electrode 36 by a wire. Other serial connection modes can be selected during the use process, and the serial connection mode is not limited to the mode.
Further, the first substrate layer 31 and the second substrate layer 37 are made of common glass or transparent plastic. The first substrate layer 31 and the second substrate layer 37 serve as the outer shell of the electrochromic device 3 to support and protect the electrochromic device 3, and common glass or transparent plastic is selected to facilitate the observation of color change of the electrochromic device 3 by an operator.
Further, the first transparent electrode 32 and the second transparent electrode 36 are one or more of indium tin oxide, fluorine doped tin oxide, aluminum doped zinc oxide, or transparent metal mesh. The first transparent electrode 32 and the second transparent electrode 36 are used for connecting the contact of the ESD button switch 4 and the electrochromic device 3 in series, and the transparent electrodes can be used for an operator to observe the color change of the electrochromic device 3 conveniently, and the judgment of the operator is not influenced by the color of the transparent electrodes.
Further, the ion storage layer 33 is aniline, ferrocene, nickel oxide, cerium oxide, or iridium oxide.
Further, the ion conductor layer 34 is LiTaO 3 Or LiNbO 3 Or a polymer gel of a metal salt.
Further, the electrochromic layer 35 is one or more of tungsten oxide, molybdenum oxide, titanium oxide, prussian blue, polythiophene, viologen, and terpyridine-metal complex. The electrochromic layer 35 mainly uses an electrochromic material, which means that the optical properties (reflectivity, transmittance, absorption rate, etc.) of the material are changed stably and reversibly in color under the action of an external electric field, and the appearance of the material is shown as reversible changes in color and transparency. The electrochromic material is divided into an inorganic electrochromic material and an organic electrochromic material, the typical representative of the inorganic electrochromic material is tungsten trioxide, and the organic electrochromic material mainly comprises polythiophene and derivatives thereof, viologen, tetrathiafulvalene, metal phthalocyanine compounds and the like. Other suitable electrochromic materials can also be selected as required when in use.
Embodiment 2, the present invention further provides a circuit field intelligent diagnosis method based on an electrochromic device, including:
after the contact of the ESD button switch 4 is closed, fault diagnosis is performed on the loop of the DI module 2 according to different colors of the electrochromic device 3, so that when the electrochromic device 3 is in different colors from the initial state, corresponding fault treatment is performed on the safety instrument system, wherein the initial state is the color presented by the electrochromic device 3 when the contact of the ESD button switch 4 is not closed, namely when the loop of the whole safety instrument system is in a normal state.
Further, after the contacts of the ESD button switch 4 are closed, the fault diagnosis of the loop of the DI module 2 is performed according to different colors of the electrochromic device 3, which includes:
after the contacts of the ESD button switch 4 are closed, the loop current of the DI module 2 flows through the electrochromic device 3 through the ESD button switch 4, so that the electrochromic device 3 is in different colors. In this embodiment, when the contact of the ESD button switch 4 is not closed, the color of the electrochromic device 3 is light, when the contact of the ESD button switch 4 is closed, the color of the electrochromic device 3 is dark, when any one of the circuits is disconnected, no current passes through the electrochromic device 3, the color of the electrochromic device 3 is transparent, and the state of the circuit can be determined according to the three color states of the electrochromic device 3. However, the color of the three states of the point-to-color-changing device 3 is not particularly limited in this application.
In this embodiment, the whole diagnosis process is illustrated by taking the example that the direct current 1 is 24V, the maximum input impedance of the DI module 2 is 2 to 2.5K Ω, the resistance of the diagnosis resistor 5 is 10 to 15K Ω, and the resistance of the electrochromic device 3 plus the ESD button cable is 0.01 to 0.02K Ω. Since the resistance values of the electrochromic device 3 and the cable are negligible compared to the resistance values of the DI module 2 and the diagnostic resistor 5, only the resistance values of the DI module 2 and the diagnostic resistor 5 are calculated in the calculation process.
When the ESD button is normal, the ESD button contact is not closed, the loop in the safety instrument system is communicated through the diagnosis resistor 5, the diagnosis current is in the loop, the loop diagnosis current is within 1.37-2 mA, the loop is normal, and the electrochromic device 3 serving as the button at the field side under low current is light in color, so that the whole circuit is normal.
Loop diagnostic current 24V/[ (2-2.5) + (10-15) ] k omega ≈ (1.37-2) mA
When the ESD button is pressed down, the contact of the ESD button switch 4 is closed, the loop of the safety instrument system crosses the diagnosis resistor 5, when the loop current is 9.6-12 mA, a parking protection program of the safety instrument system is triggered, the flow of an area or a total station is cut off, and the electrochromic device 3 serving as a button key at the field side under high current is dark, and the flow of the area or the total station is cut off.
The loop current is 24V/2.5 k omega/9.6-12 mA
When any part of the cable is disconnected, the loop of the safety instrument system has no current, the safety instrument system immediately gives an alarm, the electrochromic device 3 serving as a button key at the site side under zero current presents transparent color to indicate that the whole circuit is abnormal, and a site operator is reminded to check a physical circuit, which belongs to an explicit fault in the safety instrument system. The safety instrumented system does not initiate a safety protection procedure at this point, and no regional or total station stop is caused due to a failure of the ESD button or a failure of the cable.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Furthermore, those of ordinary skill in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.
It will be understood by those skilled in the art that while the present invention has been described with reference to exemplary embodiments, various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (6)
1. An intelligent circuit field diagnosis device based on electrochromic devices is characterized by comprising: the control system comprises a direct current power supply (1), a DI module (2) and an ESD button which are sequentially connected in series, wherein the direct current power supply (1) and the DI module (2) are arranged inside a control room, and the ESD button is arranged on the field side outside the control room;
the ESD button comprises an ESD button switch (4) and a diagnosis resistor (5) which are arranged in parallel;
an electrochromic device (3) is arranged on a key of the ESD button switch (4), and the electrochromic device (3) is a layered structure formed by sequentially laminating a first substrate layer (31), a first transparent electrode (32), an ion storage layer (33), an ion conductor layer (34), an electrochromic layer (35), a second transparent electrode (36) and a second substrate layer (37);
the first substrate layer (31) and the second substrate layer (37) are made of common glass or transparent plastic;
the first transparent electrode (32) and the second transparent electrode (36) are one or more of indium tin oxide, fluorine-doped tin oxide, aluminum-doped zinc oxide and transparent metal grids;
after the contacts of the ESD button switch (4) are closed, the contacts of the ESD button switch (4) are connected with the electrochromic device (3) in series through the first transparent electrode (32) and the second transparent electrode (36) so as to carry out fault diagnosis on the loop of the DI module (2) according to the color of the electrochromic device (3).
2. The electrochromic-device-based circuit site intelligent diagnosis device according to claim 1, wherein the ion storage layer (33) is aniline, ferrocene, nickel oxide, cerium oxide or iridium oxide.
3. The device as claimed in claim 1, wherein the ion conductor layer (34) is LiTaO 3 Or LiNbO 3 Or a polymer gel of a metal salt.
4. The electrochromic-device-based circuit site intelligent diagnostic apparatus according to claim 1, wherein the electrochromic layer (35) is one or more of tungsten oxide, molybdenum oxide, titanium oxide, prussian blue, polythiophene, viologen, and terpyridine-metal complex.
5. A diagnosis method of an intelligent diagnosis device for circuit site based on electrochromic device as claimed in any one of claims 1-4, characterized in that the diagnosis method comprises:
after the contact of the ESD button switch (4) is closed, fault diagnosis is carried out on the loop of the DI module (2) according to different colors of the electrochromic device (3), so that when the electrochromic device (3) is different from an initial state, corresponding fault treatment is carried out on a safety instrument system, wherein the initial state is the color presented by the electrochromic device (3) when the contact of the ESD button switch (4) is not closed.
6. The diagnosis method of the electrochromic device-based circuit on-site intelligent diagnosis device according to claim 5, wherein after the contacts of the ESD button switch (4) are closed, the fault diagnosis of the loop of the DI module (2) is performed according to different colors of the electrochromic device (3), and comprises the following steps:
after the contacts of the ESD button switch (4) are closed, the loop current of the DI module (2) flows through the electrochromic device (3) through the ESD button switch (4), so that the electrochromic device (3) is in different colors.
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| CN202010495052.6A CN111638440B (en) | 2020-06-03 | 2020-06-03 | Circuit field intelligent diagnosis device and method based on electrochromic device |
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| CN114355759A (en) * | 2022-01-04 | 2022-04-15 | 国家石油天然气管网集团有限公司 | Emergency parking system for oil and gas pipeline station yard and configuration method thereof |
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