KR101263414B1 - A condition lamp sensing system using neautral-earth diagnosis and sensing method using the same - Google Patents

Abstract

PURPOSE: A neutral-earth diagnostic type condition lamp monitoring system and a monitoring method using thereof are provided to use one lamp to express the various status of a plurality of equipment or a measurement object in complex, thereby enabling a direct and fast recognition of a user. CONSTITUTION: A neutral-earth diagnostic type condition lamp monitoring system(100) is comprised of a detection object which has a neutral conductor and an earth; a detection unit(40) which detects a plurality of detection element of the neutral conductor and the earth of the detection object, and writing down the status information; a control unit(20) which determines a detection element level of each detection element and a status level of the detection object by comparing the status information from the detection unit and the stored status determination information; and a lamp unit(10) which receives a driving control signal depending on the status level determination of the control unit, and indicating the status of the detection object by varying more than one among a flashing color, a blink, and a brightness control. The status information comprises the voltage of the neutral conductor, the current of the neutral conductor, the temperature of the neutral conductor, the outdoor air temperature where the neutral conductor is installed, and an electric potential(NV) of the earth. The control unit calculates the electric potential difference between the earth and the neutral conductor for determining the status level. The status level is comprised of a plurality of step, and each of the steps is comprised of a plurality of detailed level. The control level differentiates the blink times for the level or the detailed level of the status level, and controls the lamp unit to turn on or off the light. If the light is turned on or off depending on the blink times which are allocated for each level or the detailed level, the control unit performs a self-checking which reconfirms the status level of the detection object. [Reference numerals] (20) Control unit; (30) Power supply unit; (40) Detection unit

Description

Neutral-Ground Diagnostic Condition Lamp Monitoring System and Monitoring Method Using the Same {A Condition Lamp Sensing System Using Neautral-Earth Diagnosis And Sensing Method Using The Same}

The present invention relates to a condition lamp monitoring system and a monitoring method using the same, and in particular, a neutral-ground diagnosis capable of intuitive and quick recognition by a user by expressing various states of a plurality of devices or measurement targets by using one lamp. Type condition lamp monitoring system and monitoring method using the same.

Many equipments are used in industrial sites, and these equipments are provided with various lighting means for determining the operating state. Such lighting means is provided for each object or state requiring display even in one piece of equipment.

In particular, the industrial site is provided with a plurality of such equipment, there is a problem that does not easily recognize the occurrence of the occurrence of the actual abnormality due to the lighting means provided for each equipment in this way.

In addition, the conventional lighting means has a problem that it is not easy to determine whether the status or equipment is abnormal because the status display is made only by the on / off, and the intuitive recognition of the administrator is difficult.

Specifically, in the prior art, a plurality of lighting means is constituted on the panel surface of the equipment, and the lighting means is provided to be turned on / off in different colors. And the method of selectively lighting such lighting means according to a measurement state is mainly used.

However, such a conventional lighting means is similar to the shape, size, lighting color of the lighting means, even if different equipment, and even if the lighting is often displayed different states. In addition, since the lighting means are configured adjacently, there is a problem in that the purpose of using the lighting means, that is, the display of the operation state and the user recognition are not made correctly.

Accordingly, an object of the present invention is a neutral-ground diagnostic condition lamp monitoring system and a monitoring method using the same, which allows the user to intuitively and quickly recognize a variety of states of a plurality of equipment or measurement targets by using one lamp. To provide.

Accordingly, the neutral-ground diagnostic condition lamp monitoring system according to the present invention includes a detection object having a neutral wire and a ground; A detector for detecting a plurality of detection elements of the neutral line and the ground of the detection object to create state information; A controller which compares the state information from the detector with pre-stored state judgment information to determine a detection element level of each detection element and a state level of the detection target; And a lamp unit configured to receive a driving control signal according to the state level determination of the controller to change one or more of lighting color, blink, and brightness to display a state of the detection target.

The state information includes the voltage of the neutral wire, the current of the neutral wire, the temperature of the neutral wire, the ambient air temperature around which the neutral wire is installed, and the potential of the ground, and the controller controls the neutral wire and the Calculate the potential difference between grounds.

The state level is composed of a plurality of stages, and each of the plurality of stages is composed of a plurality of detail levels.

The control unit divides the step of the state level by the highest level of the detection element level.

The controller classifies the level of detail in the step according to the number of the highest levels.

The controller controls the lamp unit to be turned on by different emission colors in the step of the state level.

The control unit controls the lamp unit to be turned on and off by varying the number of times of blinking for each of the stages or the detailed levels of the state level.

The controller controls the ramp unit by varying the one time required of the blink for each of the stages or the detailed levels of the state level.

The control unit varies the brightness control range of the lamp unit per blink per the step or the level of detail of the state level.

The controller performs self-checking to re-confirm the state level of the detection target when the blinking number of the number of blinks allocated to each step or the detail level is turned off.

The controller controls the lamp unit so that the lamp unit is turned on with a light emitting color indicating the state level immediately before the self checking.

In addition, the monitoring method using the neutral-ground diagnostic condition lamp monitoring system according to the present invention is a neutral-ground diagnostic condition for measuring the detection element of the detection object to determine the status level and control the driving of the lamp unit according to the status level A monitoring method using a lamp monitoring system, the method comprising: storing state determination information for determining a state level of the detection target in a control unit; A detection unit generating state information by detecting a plurality of detection elements for the neutral line and ground of the detection object; And a state determination step of the control unit comparing the state information with the state determination information to determine the detection element level of each detection element and the state level of the detection object. And a lamp driving control step of displaying, by the controller, a state of the detection target by changing one or more of lighting colors, blink times, and brightness adjustment of the lamp unit according to the state level.

The state information includes the voltage of the neutral wire, the current of the neutral wire, the temperature of the neutral wire, the ambient air temperature around which the neutral wire is installed, and the potential of the ground, and the controller controls the neutral wire and the Calculate the potential difference between grounds.

The state level is composed of a plurality of stages, and each of the plurality of stages is composed of a plurality of detail levels.

In the status determining step, the control section divides the step of the status level by the highest level of the detection element level.

In the status determining step, the control unit classifies the level of detail in each of the steps according to the number of the highest levels.

The lamp driving control step controls the lamp unit so that the controller is turned on by different emission colors in the step of the state level.

In the lamp driving control step, the controller controls the lamp unit to be turned on and off by varying the number of blinks for each of the stages or the detailed levels of the state level.

In the ramp driving control step, the control unit controls the ramp unit by varying the time required for the blink one time for each step or level of the state level.

In the lamp driving control step, the control unit changes the brightness control range of the lamp unit per one blink of each of the state level or the detail level.

The method may further include a self-checking step of the controller re-confirming the state level of the detection target when the number of blinks assigned to the step or the sub-level is turned on and off.

In the self-checking step, the lamp unit is turned on with a light emitting color indicating the state level immediately before the control unit performs the self-checking.

Neutral-ground diagnostic condition lamp monitoring system and a monitoring method using the same according to the present invention can be intuitively and quickly recognized by the user by using a single lamp to express a variety of states of a plurality of equipment or measurement target.

1 is a configuration example showing the configuration of a condition lamp monitoring system according to the present invention.
2 is a view for explaining a monitoring method according to the present invention, an exemplary view showing status determination information.
3 is a diagram illustrating reference values for determining a level for each detection element.
4 is a view for explaining the control of the blink time and brightness for each state level.
5 is an exemplary view for explaining the detailed step-by-step brightness control of each state level.
6 is a flowchart illustrating a monitoring method using a neutral-grounded diagnostic condition lamp monitoring system according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. In the accompanying drawings, it should be noted that the same reference numerals are used in the drawings to designate the same configuration in other drawings as much as possible. In addition, in describing the present invention, when it is determined that a detailed description of a related known function or known configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. And certain features shown in the drawings are intended to be illustrative, not limiting, or reduced, or simplified, and the drawings and elements thereof are not necessarily drawn to scale. However, those skilled in the art will readily understand these details.

1 is a configuration example showing the configuration of a condition lamp monitoring system according to the present invention.

Referring to FIG. 1, the neutral-ground diagnostic condition lamp monitoring system 100 according to the present invention includes a lamp unit 10, a control unit 20, a power supply unit 30, and a detection unit 40.

The lamp unit 10 is turned on under the control of the control unit 20 to display the state of the monitoring target, and also serves to illuminate the installed space. To this end, the lamp unit 10 is configured to include a first lamp 11 for displaying the state of the monitoring target and a second lamp 12 for illuminating the installation space. Specifically, the first lamp 11 displays the state of the monitoring target by turning on / off, lighting color, blinking and brightness. For example, the first lamp 11 is turned on or off according to the state of the object to be monitored, and when turned on, the first lamp 11 expresses the state of the object to be monitored in multiple colors such as red, blue, yellow, and green. In addition, the first lamp 11 changes the brightness at the time of lighting depending on the state, and expresses the occurrence of abnormality or the abnormality through blinking. Then, the second lamp 12 is composed of a monochromatic line or a surface light source such as white light is used as the illumination of the installation space.

The first lamp 11 and the second lamp 12 is composed of a pair. In particular, the lamp unit 10 may be installed in the enclosure case 71 of the object to be monitored. Here, the lamp unit 10 can be easily confirmed by the administrator of the state of the monitoring target and can be installed in accordance with the user's convenience in the place where the lighting is required, and the present invention is not limited to the present. In particular, the first lamp 11 and the second lamp 12 can be conveniently installed in a place such as an enclosure case 71 to be monitored. In detail, the first lamp 11 is installed outside the enclosure case 71 so as to be easily checked by the user, and the second lamp 12 is the enclosure case 71 so as to easily provide illumination when checking the inside of the monitoring target. It can be installed inside. In particular, in this case, the first lamp 11 and the second lamp 12 may be coupled to each other by a fastening means penetrating the enclosure case 71, but this is not a limitation of the present invention. Here, the monitoring target or the enclosure case may be a high and low voltage power supply and distribution facilities, such as switchgear, switchgear, transformer, switchgear, but this is not limited to the present invention, it is applicable to various automation devices, control devices.

On the other hand, the first lamp 11 is configured in a protruding form, such as hemispherical and spherical shape so that it can be easily checked in various directions, with aesthetic reasons, the second lamp 12 has a sufficient amount of light for a wide range It may be configured as a surface light source for the provision of or to maintain the brightness, it is possible to modify according to the user's convenience.

The control unit 20 obtains the state information of the monitoring target through the detection unit 40, thereby determining the state of the monitoring target and controlling the lamp unit 10 to be driven according to the determined state. Specifically, the control unit 20 divides the status information into various stages of status such as normal, caution, check, and emergency according to a predetermined condition, and turns on / off, lighting color, and blinking of the lamp unit 10 according to the corresponding status. And brightness dimming. For such adjustment, the control unit 20 classifies the state information measured and prepared for various elements of the monitoring target for each element and determines the state of each element to determine the overall state. In addition, the controller 20 determines the operation of the lamp unit 10 according to the overall state and transmits a control signal for performing the determined operation to the lamp unit 10. To this end, the control unit 20 stores state determination information for determining the state information in advance. In addition, the controller 20 controls the lighting or turning off of the second lamp 12 according to the opening detection signal from the opening detection sensor of the switch or the outer case 71 provided separately. Such a control unit 20 may transmit power transmitted from the power supply unit 30 to the lamp unit 10 in addition to a control signal for driving simply, but the present invention is not limited thereto.

The power supply unit 30 supplies power for driving the lamp unit 10. The power supply unit 30 is directly connected to the first and second lamps 11 and 12 of the lamp unit 10 to supply power, or the power supply unit 20 supplies power to the control unit 20 so that the control unit 20 can supply the lamp unit 10. To relay the power supply.

The detection unit 40 measures the state of the detection element to be detected, prepares the detection value for each detection element as state information, and transmits the state to the control unit 20. To this end, the detection unit 40 may be configured using various sensors such as a temperature sensor, a current sensor, a voltage sensor, and a motion detection sensor. In particular, the neutral-ground diagnostic condition lamp monitoring system 100 of the present invention is the state of the neutral wire (N) and the neutral wire (N) and in the wiring system provided with the neutral wire (N), such as switchboard, switchboard, water substation, transformer The potential difference between ground (GND or E: Earth) is detected to determine the state of the detection target. To this end, the detection unit 40 detects the voltage NV of the neutral line N, the temperature NT of the neutral line N, the current NC of the neutral line N, and the potential EV of the ground E. It is configured to include a detector or a sensor. The monitoring method of the neutral-ground diagnostic condition lamp monitoring system 100 of the present invention will be described in more detail below with reference to other drawings.

2 is a view for explaining a monitoring method according to the present invention, an exemplary view showing the status determination information. 3 is a diagram illustrating reference values for level determination for each detection element. 4 is a view for explaining the adjustment of the blink time and brightness for each state level, Figure 5 is an exemplary view for explaining the detailed step-by-step brightness adjustment of each state level.

2 to 5, the neutral-grounded diagnostic condition lamp monitoring system 100 according to the present invention is to identify the state of the neutral wire in the wiring, power transmission, distribution circuit having a middle wire (N), the state identified By providing the output in an easy-to-recognize form, the user can recognize the state of the monitoring target accurately and easily.

To this end, the state determination information is recorded in the control unit 20, and the condition lamp output for the state determination and the result of the detection target is compared with the state information from the detection unit 40. Specifically, the monitoring system 100 of the present invention detects the potential difference (NEV) between the center line (N) and the ground (GND) with the current and temperature for the center line (N), the abnormality of the middle line (N), load It is determined whether an unbalance or an abnormality of a detection object occurs. Through this, the monitoring system 100 according to the present invention can monitor the excessive current flowing through the neutral line (N) and the deterioration and fire due to the operation efficiency of the detection target such as single-phase load, three-phase load, power factor reduction. In addition, it is possible to prevent accidents by allowing the user to recognize the monitoring results quickly, easily and accurately.

First, FIG. 2 illustrates a state level for each element determined by state information, a synthesis level based on the sum of each state level, and a representation method of the first lamp 11 through the state level. In detail, the state level for each element represents the degree of the current state for each detection element. That is, it is divided into 1 to 4 levels, and the detection element neutral line current (NC), neutral line temperature (NT), neutral line (N) and the potential difference (NEV) between the ground is divided into 1 to 4 levels, respectively. Here, it is not necessary to divide into four levels, and the number of levels can be changed according to the user's convenience.

When the levels are classified for each detection element as described above, the state level is determined by combining them, and the operation of the first lamp 11 is determined according to the determined state level. Specifically, the status level may be divided into four stages: normal, attention, check, and emergency. Here, the state level is not necessarily divided into four steps, but may be changed according to the user's convenience.

Meanwhile, as shown in FIG. 2, the detection elements may have different states, and thus may be different levels. Therefore, the control unit 20 determines the state level by combining the levels of these detection elements. Specifically, in the example represented in FIG. 2, when all of the detection elements are at one level, at least one of the detection elements is normal, when at least one of the detection elements is at the second level. In the case of this four-level state is shown the state information that the status determination is made urgently. As such, the control unit 20 determines the state level according to the detection element levels of the detection elements and determines the operation of the first lamp 11.

In detail, the first lamp 11 expresses the state level of each step differently by color, dimming, and on / off (or blinking). In particular, the monitoring system 100 of the present invention may express the operation of the first lamp 11 differently even in one state.

Specifically, as shown in FIG. 2, the normal can be expressed by adjusting the number of blinks three times and adjusting the brightness by 10 to 100%. In the caution step, the number of blinks and the brightness adjusting range can be expressed according to the number of two-level detection elements. . In other words, if there is one two-level detection element, 4 blinks, the brightness adjustment 10-30%, if the two-level detection elements are two blinks five times, the brightness adjustment 10-60%, if the two-level detection elements are all six times and The brightness can be expressed as 10 ~ 100%. By this method, the number of blinks in the check and emergency state increases with the level of the detection element, and the dimming range can be adjusted and expressed in each step (check and emergency).

In addition, brightness control means one flicker, that is, changing the light output of the first lamp 11 for one blink, and the time allotted per blink can be determined differently for each state level.

Meanwhile, after the number of blinks determined for each state level and the corresponding brightness adjustment are performed, the controller 20 may perform self-checking to check the current state. As a result, the controller 20 determines whether the state of the detection element or the detection target is the same as the previous state, and accordingly re-confirms the operation method of the first lamp 11 to drive the first lamp 11.

As shown in FIG. 3, the level for each detection element is determined by level determination criteria determined for each detection element. Specifically, the potential difference (NEV) between the neutral wire and the ground may be classified into one to four levels, each of which is less than 0 to 10V, more than 10V to less than 20V, more than 20V to less than 30V, and more than 30V. In the case of the neutral line current NC, 120% or more, 130%, 130% or more, less than 140%, and 140% or more of the current value of one level may be determined as 2 to 4 levels, respectively. However, Inmax, which is a one-level current, may be set to the maximum current value of the currents measured on the N phase for a predetermined period (for example, one month). The value less than 120% of the maximum current value Inmax can be set to one level. This is to determine the maximum current value Inmax generated due to the load connected to the detection object to be a normal range. For this, the neutral current (NC) value is measured for a predetermined period to select the maximum current value Inmax.

On the other hand, the neutral temperature NT of the detection elements is set to an ambient temperature of one level. And, the 2 to 4 level is determined according to the temperature difference from the ambient temperature, that is, the first level temperature, the second level temperature is 45 degrees or more and less than 55 degrees, the third level temperature is 55 degrees or more and less than 64 degrees, there is a difference of more than 64 degrees In this case, it can be set to four levels. Neutral line temperature (NT) and neutral line current (NC) has a correlation by the specific heat and current of a converter such as copper, which may cause the center line temperature (NT) to change according to the center line current. Therefore, the determination is performed as a separate detection element in order to determine whether the stability and the rise of temperature independent of the current.

Meanwhile, in describing the operation of each state level through FIG. 2, the brightness control and the self-checking have been mentioned. 4 is an exemplary diagram for a detailed description thereof.

In FIG. 4, the Dimming 1Cycle algorithm is representative of the lower units of each state level (Level_1 to 4). Brightness adjustment is done during one blink, or blinking. In addition, such flickering and brightness control have different periods and brightness changes for each state level and detail level. 4 describes the period of the blink and self-checking.

Specifically, at a relatively low level, the time required for one blink is longer than the one-blink time at a high level. In other words, the more important the condition is to blink quickly to call the administrator's attention. In detail, when the state level is one step, the time required for one blink is set to 5 seconds, and when the state level is the fourth step, the time required for one blink is set to 1 second. Then, brightness control is performed during this single blink period. Particularly, as shown in FIG. 5, the same blink time is given between the detailed levels of the same state level, but the degree of brightness adjustment is set to 10 to 30%, 10 to 60%, and 10 to 100%, respectively.

On the other hand, the self-checking time proceeds after a given number of blink operations and brightness adjustments are added to each state level. This self-checking is the time when the controller 20 determines whether there is a change in the state of the detection object. The controller 20 determines the state change of the detection target during the self-checking period, determines the next operation of the first lamp 11 according to the control, and performs the control. At this time, the control unit 20 controls the first lamp 11 so that the user can recognize that self-checking is performed by lighting the expression color of the previous state level at 100% brightness during the self-checking period. This self checking time is defined as a time at which state determination can be made by the controller 20 and can be changed by the user as needed.

6 is a flowchart illustrating a monitoring method using a neutral-ground diagnostic condition lamp monitoring system according to the present invention.

Referring to FIG. 6, the monitoring method using the neutral-ground diagnostic condition lamp monitoring system according to the present invention includes a state determination information preparation step S10, a state information preparation step S20, a state determination step S30, and a first determination method. It comprises a lamp drive control step (S40) and self-checking step (S50).

Status determination information creation step (S10) is a step in which information for the status determination is created and stored in the control unit 20. In this state determination information preparation step S10, a detection element is selected and the detection element level for each of the selected detection elements is determined. In detail, in the state determination information preparing step S10, the detection element level for the neutral line temperature NT, the neutral line current NC, and the potential difference NEV between the neutral line and the ground is determined. In this case, the detection element level determined may be determined as 1 to 4 levels as described above, but the present invention is not limited thereto. In particular, the maximum current value Inmax obtained by measuring the neutral line current NC for a predetermined period may be measured to determine the detection element level.

In the state information preparation step S20, the detection unit 40 prepares state information by measuring the current NC, the temperature NT, the potential NV, and the potential EV of the ground with respect to the neutral line N, It is a step of transmitting the created state information to the control unit 20. In this state information preparation step (S20), the detection unit 40 further includes an ambient temperature sensor for measuring the ambient temperature to be detected, and the controller 20 uses the ambient temperature information created by the ambient temperature sensor as state information. To pass on.

In the state determination step (S30), the control unit 20 receives the state information, calculates the detection element level for each detection element by comparing with the state judgment information stored in advance, and determines the state level by combining them. The controller 20 determines the lighting color, the number of blinks, the blink interval, and the brightness adjustment for the blinking of the first lamp according to the state level.

The first lamp driving control step (S40) is performed by the controller 20 according to the lighting color, the number of blinks, the blink interval, and the degree of brightness adjustment at the time of blinking, which are determined by the status determination step (S30). 11) controlling the driving. In the first lamp driving control step (S40), the control unit 20 turns on the first lamp by varying the lighting color, the number of blinks, the blink interval, and the degree of erection control according to the state level and the detail level of the state level.

In the self checking step S50, when the first lamp 11 is repeatedly turned on and off by the number of blinks determined at the state level and the detail level, the control unit 20 uses the state information from the detection unit 40 to detect the state of the detection target. Will be determined. In particular, in this self-checking step (S50), the control unit 20 controls to maintain the state in which the first lamp 11 is turned on with the lighting color of the previous state level.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, . ≪ / RTI > Accordingly, such modifications are deemed to be within the scope of the present invention, and the scope of the present invention should be determined by the following claims.

10: lamp unit
11: first lamp
12: second lamp
20:
30: power supply
40: detection unit

Claims (22)

A detection object having a neutral wire and a ground;
A detector for detecting a plurality of detection elements of the neutral line and the ground of the detection object to create state information;
A controller which compares the state information from the detector with pre-stored state judgment information to determine a detection element level of each detection element and a state level of the detection target;
And a lamp unit configured to receive a driving control signal according to the state level determination of the controller to change one or more of lighting color, blink, and brightness to display a state of the detection target.
The state information includes the voltage of the neutral wire, the current of the neutral wire, the temperature of the neutral wire, the ambient air temperature around which the neutral wire is installed, and the potential of the ground, and the controller controls the neutral wire and the Calculate the potential difference between grounds,
The state level is composed of a plurality of stages, each of the plurality of stages is composed of a plurality of detail levels,
The control unit controls the lamp unit to be turned on and off by varying the number of times of blinking for each step of the state level or for each detail level,
The control unit monitors the neutral-ground diagnostic condition lamp when self-checking is performed to re-confirm the state level of the detection target when the number of times of blinking and the number of blinks allocated to each of the steps or the level of detail is made. system. delete delete The method of claim 1,
The control unit
And said step of said status level is categorized by the highest level of said detection element level. The method of claim 4, wherein
The control unit
And the sub-levels of the step according to the number of the highest levels. The method of claim 1,
The control unit
And the lamp unit controls the lamp unit to be turned on by different light emission colors in the step of the state level. delete The method of claim 1,
The control unit
Neutral-ground diagnostic condition lamp monitoring system, characterized in that for controlling the lamp unit by varying the one time required of the blink by the step or the detail level of the status level. The method of claim 1,
The control unit
Neutral-ground diagnostic condition lamp monitoring system, characterized in that for varying the brightness control range of the lamp unit per one time of the blink by the step or the detail level of the status level. delete The method of claim 1,
And the control unit controls the lamp unit to turn on the lamp unit with a light emitting color indicating the state level immediately before performing the self-checking. In the monitoring method using a neutral-ground diagnostic condition lamp monitoring system for measuring the detection element of the detection object to determine the state level and to control the driving of the lamp unit in accordance with the state level,
Storing state determination information for determining a state level of the detection target in a control unit;
A detection unit generating state information by detecting a plurality of detection elements for the neutral line and ground of the detection object; And
A state determination step of the control unit comparing the state information with the state determination information to determine a detection element level of each detection element and the state level of the detection object;
And a lamp driving control step of displaying, by the controller, a state of the detection target by changing one or more of lighting colors, blink times, and brightness of the lamp unit according to the state level.
The state information includes the voltage of the neutral wire, the current of the neutral wire, the temperature of the neutral wire, the ambient air temperature around which the neutral wire is installed, and the potential of the ground, and the controller controls the neutral wire and the Calculate the potential difference between grounds,
The state level is composed of a plurality of stages, each of the plurality of stages is composed of a plurality of detail levels,
The lamp driving control step controls the lamp unit to be turned on and off by varying the number of blinks by the step or the level of detail of the state level,
Neutral-Ground Diagnosis, characterized in that the control unit further comprises a self-checking step of re-confirming the state level of the detection target when the number of blinks assigned to the step or the detail level is turned on and off Method using a type condition lamp monitoring system. delete delete 13. The method of claim 12,
The state determination step
And the control unit classifies the step of the state level by the highest level of the detection element level. The method of claim 15,
The state determination step
And the control unit classifies the sub-levels of each of the steps according to the number of the highest levels. 13. The method of claim 12,
The lamp driving control step
And the control unit controls the lamp unit to be turned on by different light emission colors at the stages of the state level. delete 13. The method of claim 12,
The lamp driving control step
And the control unit controls the lamp unit by varying the time required for the blink one time for each of the step levels or the detailed levels of the state level. 13. The method of claim 12,
The lamp driving control step
And the control unit varies the brightness control range of the lamp unit per the blink of each step of the state level or the detail level, using a neutral-ground diagnostic condition lamp monitoring system. delete 13. The method of claim 12,
The self-checking step
And the lamp unit is turned on by a light emitting color indicating the state level immediately before the control unit performs the self-checking.

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