TWI741609B - Circuit breaker, circuit breaker system, information processing method and information processing program - Google Patents

Abstract

A circuit breaker (1) includes: an opening and closing mechanism portion (10); a trip device (20); a detection portion (30); a driving portion (40); a body case (70); a light emitting diode (50); and a flicker control portion (60). The opening and closing mechanism portion (10) opens and closes a circuit(4). The trip device (20) operates the opening and closing mechanism (10). The detection portion (30) detects the current value of a leakage current or an energization current of the circuit (4). The driving portion (40) drives the trip device (20) based on the detection result of the detection portion (30). The body case (70) covers the opening and closing mechanism portion (10), the trip device (20), the detection portion (30), and the driving portion (40). The light emitting diode (50) is arranged at a position viewable from the outside of the body case (70). The flicker control unit (60) flickers the light emitting diode (50) according to the current value detected by the detection portion (30).

Description

Circuit breaker, circuit breaker system, information processing method and information processing program

The invention relates to a circuit breaker, a circuit breaker system, an information processing method, and an information processing program that block a circuit based on the leakage current or overcurrent of the circuit.

Conventionally, in a circuit breaker that interrupts a circuit based on a leakage current or an overcurrent of the circuit, a technique for displaying the current value of the leakage current or the energizing current is known. For example, Patent Document 1 proposes a technique for blocking the leakage circuit breaker of the circuit to display the current value of the leakage current when the detection value of the leakage current exceeds the reference value.

[Prior Technical Literature] [Patent Literature]

Patent Document 1: Japanese Patent Application Publication No. 2003-217433

The conventional circuit breaker is equipped with liquid crystal in a place that can be seen from the front of the circuit breaker body Displays or seven-segment light-emitting diodes (Light Emitting Diode; LED) and other displays, through which the display shows the measured value with text or graphs. For circuit breakers with product specifications or characteristic marking obligations on the specifications, if a display is arranged on the front of the circuit breaker body, the marking range of the product specifications or characteristics of the circuit breaker may be narrowed, and the marking text of the product specifications or characteristics Become smaller. In addition, when the display is attached to the side of the circuit breaker with a module structure, and the display is arranged at a position that does not interfere with the marking area of the product specifications or characteristics of the circuit breaker, the appearance of the circuit breaker will become larger.

The present invention was developed in view of the above-mentioned problems, and aims to obtain a circuit breaker that can reduce the space for displaying the detection value of leakage current or energization current.

In order to solve the above problems and achieve the objective, the circuit breaker of the present invention is provided with: an opening and closing mechanism part; a trip device; a detection part; a driving part; a body shell; a light emitting diode; and a flicker control part. The opening and closing mechanism is an opening and closing circuit. The trip device operates the opening and closing mechanism. The detection unit detects the leakage current of the circuit or the current value of the energizing current. The drive unit drives the trip device based on the detection result of the detection unit. The body shell covers the opening and closing mechanism part, the trip device, the detection part, and the driving part. A light-emitting diode system is arranged in a position that can be viewed from the outside of the body shell. The flicker control unit blinks one light-emitting diode based on the current value detected by the detection unit.

According to the present invention, the effect of reducing the space for displaying the detection value of leakage current or energization current can be achieved.

1: Circuit breaker

2: power supply

3: load

4: Circuit

10: Opening and closing mechanism department

11: fixed contact

12: Movable contact

13: handle

14: Power-side connection terminal

15: Load side connection terminal

16: Trip lever

17: Overcurrent trip device

20: Tripping device

21: Actuator

22: Tripping relay

30: Inspection Department

31: Zero phase converter

31a, 31b, 31c: converter

32: AD converter

33: Effective value calculation section

34: Rectifier circuit

40, 64: drive unit

41: Comparison Department

42: Sensitivity current value setting section

43: Jump off the output

44: trigger circuit

50: LED

51: resistance

52: Microcomputer

53: Sensitivity switch

53a, 54a: handle

54: Action time switch

55: Test button

56: Leakage display button

57, 130: Input section

58: Feature marking area

60: Flicker control section

61: Memory Department

62: State Judgment Department

63: Ratio calculation unit

70: body shell

71: body base

72: body cover

72a, 72b, 72c, 82a, 82b: opening

73: Sensitivity current setting value indication area

74, 75: Code information marking area

76, 77: area

80: Leakage detection circuit unit

81: unit base

82: unit cover

83: unit housing

84: Electronic Circuit Department

85: printed wiring board

90: power supply circuit

100: Information processing device

110: Camera Department

120: Display

140: Ministry of Communications

150: Processing Department

151: Acquisition Department

152: Conversion Department

153: Display Processing Department

160: display screen

161: processor

162: Memory

163: Interface Circuit

164: Bus

200: Circuit breaker system

Ia, Ib: effective value

Iset: user set value

Ith: Sensitivity current setting value

Sg: drive signal

Ta1, Ta2, Ta3: period

S11~S21, S31~S36: steps

Fig. 1 is a diagram showing a configuration example of a circuit breaker of Embodiment 1 of the present invention.

Figure 2 is a diagram showing a configuration example of the circuit breaker system of this embodiment.

Figure 3 is a perspective view of the external appearance of the circuit breaker of the first embodiment.

Figure 4 is a top view of the circuit breaker of the first embodiment.

Figure 5 is a perspective view of the external appearance of the circuit breaker in the state after the body cover of the embodiment 1 is removed.

Figure 6 is a cross-sectional view of the main parts along the VI-VI line shown in Figure 4.

Fig. 7 is a plan view of the circuit breaker in the state after the cover of the embodiment 1 is removed.

Fig. 8 is a top view of the leakage detection circuit unit of the first embodiment.

Fig. 9 is a plan view of the leakage detection circuit unit in the state after the unit cover of the embodiment 1 is removed.

Fig. 10 is a block diagram showing an example of the specific configuration of the circuit breaker of Embodiment 1.

Fig. 11 is a diagram showing an example of the structure of the flicker control unit of the first embodiment.

Fig. 12 is a diagram for explaining the first blinking mode performed by the blinking control unit of the first embodiment.

FIG. 13 is a diagram for explaining the second blinking mode performed by the blinking control unit of the first embodiment.

FIG. 14 is a diagram for explaining the third blinking mode performed by the blinking control unit of the first embodiment.

Figure 15 is a flowchart showing an example of the processing performed by the circuit breaker of the implementation pattern 1.

Fig. 16 is a diagram showing a configuration example of the information processing device of the first embodiment.

FIG. 17 is a diagram for explaining the relationship between the flicker pattern in the second flicker mode of the first embodiment and the imaging result of the imaging unit.

FIG. 18 is a diagram for explaining the relationship between the flicker pattern of the data in the third flicker mode of the implementation pattern 1 and the imaging result of the imaging unit.

Figure 19 is a diagram showing an example of the characteristic marking area of the circuit breaker of the implementation type 1.

Fig. 20 is a diagram showing another example of the characteristic marking area of the circuit breaker of Embodiment 1.

Figure 21 is a diagram showing an example of the characteristic marking area when the sensitivity switch is not provided in the circuit breaker of the first embodiment.

Figure 22 is a diagram showing another example of the characteristic marking area when the sensitivity switch is not provided in the circuit breaker of the first embodiment.

FIG. 23 is a diagram showing an example of the display screen of the display unit of the information processing device of Embodiment 1.

FIG. 24 is a diagram showing another example of the display screen of the display part of the information processing device of Embodiment 1.

FIG. 25 is a flowchart showing an example of processing performed by the processing unit of the information processing device of Embodiment 1.

Fig. 26 is a diagram showing an example of the hardware configuration of the microcomputer of the circuit breaker of the implementation type 1.

FIG. 27 is a block diagram showing another example of the specific structure of the circuit breaker of Embodiment 1.

The following describes in detail the circuit breaker, circuit breaker system, information processing method and information processing program of the embodiment of the present invention based on the drawings. In addition, the present invention is not limited to these embodiments.

Implementation Type 1

Fig. 1 is a diagram showing a configuration example of a circuit breaker of Embodiment 1 of the present invention. As shown in Figure 1, the circuit breaker 1 of the first embodiment is provided with: an opening and closing mechanism unit 10 for opening and closing the circuit 4 between the power supply 2 and the load 3; and a trip device 20 for operating the opening and closing mechanism unit 10; and The detection unit 30 detects the leakage current or the current value of the energizing current of the circuit 4.

In addition, the circuit breaker 1 is provided with a drive unit 40, which is based on the detection result of the detection unit 30 As a result, the trip device 20 is driven; and the main body housing 70 covers the opening and closing mechanism section 10, the trip device 20, the detection section 30, the drive section 40, and the flicker control section 60. In addition, the detection unit 30 is provided with a zero-phase current transformer for detecting the leakage current of the circuit 4 or a current transformer for detecting the current value of the energized current.

Furthermore, the circuit breaker 1 is provided with: a light emitting diode 50 partly exposed to the outside from the main body casing 70; Flashing. In this way, the circuit breaker 1 of the first embodiment performs a flashing of a light emitting diode 50 based on the current value detected by the detection unit 30. Therefore, the space for displaying the leakage current or the current value of the energizing current can be reduced.

Therefore, for example, when there is an obligation to indicate the product specifications and characteristics of the circuit breaker 1 in the specifications, the display space of the leakage current or the current value of the energizing current can be suppressed to reduce the text indicating the product specifications or characteristics. In addition, compared to a case where a display that displays the leakage current or the current value of the energizing current is attached to the side of the circuit breaker body by a module structure, the circuit breaker 1 can be miniaturized. In addition, since the display space of the leakage current or the current value of the energizing current is small, the circuit breaker 1 can be easily formed into the same shape as the standard product, thereby preventing the shape of the panel hole of the switchboard or control panel from becoming different Based on the shape of the standard product.

The circuit breaker system including the circuit breaker 1 of Embodiment 1 will be specifically described below. Fig. 2 is a diagram showing a configuration example of the circuit breaker system of the first embodiment. As shown in FIG. 2, the circuit breaker system 200 of Embodiment 1 includes the circuit breaker 1 and the information processing device 100 described above. The information processing device 100 is equipped with an imaging unit 110 and a display unit 120. The imaging unit 110 captures the flickering of the light-emitting diode 50 of the circuit breaker 1, and then according to the captured result, the leakage current or the energizing current of the circuit 4 The value is displayed on the display unit 120 in characters.

First, the configuration of the circuit breaker 1 will be specifically explained. Figure 3 shows the circuit breaker of implementation type 1 Three-dimensional view of the appearance. Figure 4 is a top view of the circuit breaker of the first embodiment. Figure 5 is a perspective view of the external appearance of the circuit breaker in the state after the body cover of the embodiment 1 is removed. Figure 6 is a cross-sectional view of the main parts along the VI-VI line in Figure 4. Fig. 7 is a plan view of the circuit breaker in the state after the cover of the embodiment 1 is removed.

As shown in FIG. 3, the main body casing 70 of the circuit breaker 1 includes a main body base 71 and a main body cover 72. In addition, as shown in Figs. 4 and 5, the circuit breaker 1 includes: a plurality of power-side connection terminals 14, which are exposed at one end of the main body casing 70, and are connected to the power supply 2; and a plurality of load-side connection terminals 15. It is exposed at the other end of the main body shell 70 and is used to connect the load 3.

As shown in FIG. 6, the switching mechanism 10 of the circuit breaker 1 has a fixed contact 11 and a movable contact 12. By the contact between the fixed contact 11 and the movable contact 12, the circuit 4 becomes a closed state, and the circuit breaker 1 becomes an on state. In addition, by the disconnection of the fixed contact 11 and the movable contact 12, the circuit 4 is in an open state, and the circuit breaker 1 is in an off state. As shown in Figs. 3 to 6, the circuit breaker 1 has a handle 13. By manually operating the handle 13, the fixed contact 11 and the movable contact 12 can be contacted or disconnected.

Moreover, as shown in FIG. 6 and FIG. 7, the circuit breaker 1 is equipped with the trip lever 16 which acts on the opening and closing mechanism part 10, and turns the circuit breaker 1 into an OFF state. In addition, as shown in Figure 6, the circuit breaker 1 is equipped with: an overcurrent trip device 17, which drives the trip lever 16 when an overcurrent or short-circuit current flows through the circuit 4; and a zero-phase converter 31, which outputs A current proportional to the leakage current of circuit 4. The zero-phase converter 31 constitutes a part of the detection unit 30.

In addition, as shown in FIGS. 5 and 6, the circuit breaker 1 is provided with a leakage detection circuit unit 80, which performs the tripping device 20 based on the current signal output from the zero-phase converter 31 Drive, flashing the light-emitting diode 50 and so on. The leakage detection circuit unit 80 includes: The parts other than the zero-phase converter 31 in the detection unit 30; the drive unit 40; and the flicker control unit 60.

As shown in FIG. 6, the trip device 20 includes an actuator 21 and a trip relay 22 that drives the actuator 21. The trip relay 22 drives the actuator 21 when receiving the trip signal output by the leakage detection circuit unit 80, and the trip lever 16 is driven by the actuator 21. Thereby, the trip lever 16 acts on the opening-closing mechanism part 10, and the circuit breaker 1 is turned off. The leakage detection circuit unit 80 outputs a trip signal to the trip device 20 when the current value of the leakage current of the circuit 4 becomes the sensitivity current setting value or more.

Here, the configuration of the leakage detection circuit unit 80 will be described. Fig. 8 is a plan view of the leakage detection circuit unit of the embodiment 1, and Fig. 9 is a plan view of the leakage detection circuit unit of the embodiment 1 with the unit cover removed.

As shown in FIG. 8, the leakage detection circuit unit 80 includes a unit case 83 including a unit base 81 and a unit cover 82, and an electronic circuit portion 84 that is arranged inside the unit case 83. The electronic circuit unit 84 has a printed wiring board 85 on which a plurality of components are mounted.

Specifically, as shown in Figure 9, the printed wiring board 85 is mounted with: the above-mentioned light-emitting diode 50; a resistor 51 that suppresses the current of the light-emitting diode 50 to a predetermined current value; and a microcomputer 52, Control the tripping device 20 and the light-emitting diode 50 and so on. In addition, the printed wiring board 85 is equipped with a sensitivity switch 53 to switch the leakage sensitivity: and an operation time switch 54 to switch the leakage off time.

As shown in Fig. 8, the unit cover 82 is formed with openings 82a and 82b. The light emitting diode 50 is disposed in the leakage detection circuit unit 80 in a state where a part of it protrudes from the opening 82a. The sensitivity changeover switch 53 and the operation time changeover switch 54 are arranged in the leakage detection in a state exposed from the opening 82b Circuit unit 80.

In addition, as shown in FIG. 4, the main body cover 72 has a characteristic indication area 58 in which openings 72a, 72b, and 72c are formed. The light emitting diode 50 is arranged in the circuit breaker 1 in a state where a part of it is exposed or protruded from the opening 72a. The sensitivity selector switch 53 is arranged in the circuit breaker 1 with the handle 53a protruding from the opening 72b. The operation time selector switch 54 is arranged in the circuit breaker 1 with the handle 54a protruding from the opening 72c.

In addition, as shown in Figure 4, the circuit breaker 1 also has: a test button 55 for testing whether the circuit breaker 1 will trip when a leakage occurs, and a leakage display button 56 for displaying the occurrence of leakage. The electric leakage indicator button 56 protrudes from the main body casing 70 when the circuit breaker 1 is tripped when electric leakage occurs. In addition, the test button 55 is pressed when the leakage detection operation of the circuit breaker 1 is to be tested.

As shown in Figures 8 to 10, when the microcomputer 52 determines that the leakage current of the circuit 4 is greater than the sensitivity current setting value based on the current signal from the zero-phase converter 31, it is based on the current value of the leakage current of the circuit 4. The light emitting diode 50 blinks. The blinking state of the light emitting diode 50 can be seen from the front of the circuit breaker 1 through the opening 82a of the unit cover 82 and the opening 72a of the main body cover 72.

Fig. 10 is a block diagram showing an example of the specific configuration of the circuit breaker of Embodiment 1. As shown in Fig. 10, the circuit breaker 1 includes: an opening and closing mechanism unit 10; a trip device 20; a zero-phase converter 31; a trigger circuit 44; a light-emitting diode 50; a resistor 51; a microcomputer 52; a sensitivity switch 53 ; And leakage display button 56. In addition, the circuit breaker 1 includes an input unit 57 and a power supply circuit 90. In addition, the illustration of the test button 55 is omitted in FIG. 10.

The microcomputer 52 is equipped with an AD (Analogue-to-Digital) converter 32 and an effective value calculation unit 33. The AD converter 32 converts the analog current signal from the zero-phase converter 31 into a digital signal. The effective value calculation unit 33 calculates based on the digital signal output from the AD converter 32 The effective value Ia of the leakage current of the circuit 4.

The detection unit 30 shown in FIGS. 1 and 10 includes a zero-phase converter 31, an AD converter 32, and an effective value calculation unit 33. The circuit 4 shown in Figure 10 is a three-phase circuit. In addition, between the zero-phase converter 31 and the AD converter 32 is, for example, a circuit that converts the current signal of the zero-phase converter 31 into a voltage, and the AD converter 32 converts the current signal converted into a voltage. The analog value is converted to a digital value.

In addition, the microcomputer 52 includes a comparison unit 41, a sensitivity current value setting unit 42, and a trip output unit 43. The comparison unit 41 compares the effective value Ia of the leakage current calculated by the effective value calculation unit 33 with the sensitivity current setting value Ith. The sensitivity current value setting unit 42 sets the sensitivity current setting value Ith corresponding to the position of the handle 53 a of the sensitivity switch 53 to the comparison unit 41. The trip output unit 43 outputs a trip signal to the trigger circuit 44 when the effective value Ia of the leakage current is greater than or equal to the sensitivity current setting value Ith based on the comparison result performed by the comparison unit 41.

The trigger circuit 44 outputs a trip signal to the trip device 20 when receiving the trip signal output by the trip output unit 43. When the trip device 20 receives the trip signal output by the trip output section 43, it operates the opening and closing mechanism section 10 via the trip lever 16 to change the circuit 4 from the closed state to the open state. The drive unit 40 shown in FIG. 1 includes a comparison unit 41, a sensitivity current value setting unit 42, a trip output unit 43, and a trigger circuit 44. The effective value Ia of the leakage current is an example of the current value.

In addition, the microcomputer 52 includes a flicker control unit 60 that outputs a drive signal Sg for blinking the light emitting diode 50 based on the effective value Ia of the leakage current calculated by the effective value calculating unit 33. The flicker control unit 60 outputs a drive signal Sg for flickering the light emitting diode 50 based on the effective value Ia of the leakage current when the circuit breaker 1 is not in the off state, for example. The flicker control unit 60 does not output the drive signal Sg when the circuit breaker 1 is turned off by the drive unit 40, for example. At this time, glow The diode 50 does not light up.

In addition, the flicker control unit 60 can memorize the user setting value Iset of the value set by the user operating the input unit 57. The flicker control unit 60 can output a drive signal for flickering the light-emitting diode 50 according to the effective value Ia of the leakage current when the effective value Ia of the leakage current is greater than the user set value Iset and the circuit breaker 1 is not in the off state Sg. In addition, the flicker control unit 60 does not output the drive signal Sg when the effective value Ia of the leakage current does not reach the user set value Iset. Thereby, when the effective value Ia of the leakage current does not reach the user-set value Iset, the light-emitting diode 50 does not light up.

Fig. 11 is a diagram showing an example of the structure of the flicker control unit of the first embodiment. The flicker control unit 60 shown in FIG. 11 includes a storage unit 61; a state determination unit 62; a ratio calculation unit 63; and a drive unit 64. The storage unit 61 stores the user set value Iset in accordance with the user's operation on the input unit 57.

When the effective value Ia of the leakage current does not reach the sensitivity current setting value Ith, the state determining unit 62 determines whether the effective value Ia of the leakage current is greater than or equal to the user setting value Iset and the circuit breaker 1 is in the ON state. When the effective value Ia of the leakage current is greater than or equal to the user set value Iset and the circuit breaker 1 is in the on state, the state determining section 62 operates the ratio calculating section 63 and the driving section 64 to cause the driving section 64 to drive the light emitting diode 50 to blink . The state determination unit 62 does not operate the ratio calculation unit 63 and the drive unit 64 when the effective value Ia of the leakage current does not reach the user set value Iset or the circuit breaker 1 is in the off state, and keeps the light emitting diode 50 off state.

In addition, when the user setting value Iset is not set, the state determination unit 62 operates the ratio calculation unit 63 and the drive unit 64 when the circuit breaker 1 is in the ON state, and causes the drive unit 64 to drive the light emitting diode 50 to blink. In addition, the state determination unit 62 does not operate the ratio calculation unit 63 and the drive unit 64 when the user set value Iset is not set, and if the circuit breaker 1 is in the off state, the light emitting diode is maintained 50's extinguished state.

The ratio calculation unit 63 calculates the ratio Ra of the effective value Ia of the leakage current to the sensitivity current setting value Ith set by the sensitivity current value setting unit 42. The driving unit 64 outputs a driving signal Sg corresponding to the ratio Ra calculated by the ratio calculating unit 63, thereby causing the light emitting diode 50 to blink. The driving unit 64 can blink the light emitting diode 50 according to a blinking mode selected from a plurality of blinking modes including the first blinking mode, the second blinking mode, and the third blinking mode.

First, the first blinking mode will be explained. Fig. 12 is a diagram for explaining the first blinking mode performed by the blinking control unit of the first embodiment. As shown in Fig. 12, when the driving unit 64 selects the first blinking mode, the ratio Ra calculated by the ratio calculating unit 63 is used as the ratio of the light-on time and the light-off time of the light-emitting diode 50 to make the light-emitting diode 50 flashes. That is, the drive unit 64 outputs the drive signal Sg in order to light the light emitting diode 50 in the time of "Ra%" in the preset period T1, and in order to make the light emitting diode 50 in the time of "100-Ra%". The pole body 50 is extinguished without outputting the drive signal Sg. The preset period T1 is an iterative cycle.

Next, the second blinking mode will be explained. FIG. 13 is a diagram for explaining the second blinking mode performed by the blinking control unit of the first embodiment. In the second blinking mode, a blinking format including header and data is used to blink the light-emitting diode 50. The header can be specified according to the pre-set flashing pattern, and the data can be specified according to the flashing pattern corresponding to the ratio Ra.

The flickering pattern of the header shown in Figure 13 becomes the flickering pattern of "01111110" from time t1 to t8. "0" means that the light-emitting diode 50 is off, and "1" means that the light-emitting diode 50 is on. In addition, the length of each of the times t1 to t8 is the length of the period Ta1.

The flicker pattern of the data shown in Figure 13 is from time t9 to t15, and the ratio Ra is expressed in a seven-digit binary system. "0" means that the light-emitting diode 50 is off, and "1" means that it emits light The diode 50 lights up. For example, when the ratio Ra is "1%", the flicker pattern of the light-emitting diode 50 is "0000001", and when the ratio Ra is "50%", the flicker pattern of the light-emitting diode 50 is "0110010". In addition, when the ratio Ra is “99%”, the flicker pattern of the light-emitting diode 50 is “1100011”.

Next, the third blinking mode will be described. FIG. 14 is a diagram for explaining the third blinking mode performed by the blinking control unit of the first embodiment. In the third blinking mode, as in the second blinking mode, a blinking format including header and data is used to blink the light-emitting diode 50.

The blinking pattern of the header shown in Figure 14 is a blinking pattern of "1010" from time t1 to t4. "0" means that the light-emitting diode 50 is off, and "1" means that the light-emitting diode 50 is on. In addition, the length of each of the times t1 to t4 is the length of the period Ta2. The length of the period Ta2 is, for example, the same as the length of the period Ta1.

The data shown in Figure 14 specifies the tens digit of the ratio Ra from time t5 to t14, and specifies the single digit of the ratio Ra from time t17 to t26. "0" means that the light-emitting diode 50 is off, and "1" means that the light-emitting diode 50 is on. In addition, the length of each of the times t5 to t28 is the length of the period Ta3. The length of the period Ta3 is, for example, one third of the length of the period Ta2.

From time t5 to t14, the greater the tens digit of the ratio Ra, the longer the lighting period of the light-emitting diode 50. From time t17 to t26, the greater the single digit of the ratio Ra, the longer the light-emitting diode 50 is. The longer the lighting period. In addition, the times t15, t16, t27, and t28 are "0". When the tens digit in the ratio Ra is 1 or more, the time t5 is "1", and when the single digit in the ratio Ra is 1 or more, the time t17 is "1".

For example, when the ratio Ra is "1%", the tens digit of the flicker state of the light-emitting diode 50 is "0000000000" and the single digit is "1100000000". In addition, when the ratio Ra is "49%", the tens digit of the flicker state of the light-emitting diode 50 is "1111100000" and the single digit is "1111111111". In addition, when the ratio Ra is "99%", the flicker state of the light-emitting diode 50, its tens digit is "1111111111", The single digit is "1111111111".

The drive unit 64 is in the third blinking mode. When the tens digit is "0", the time t5 is set to "0", and when the tens digit is not "0", the time t5 is set to "1". Similarly, the drive unit 64 is in the third blinking mode. When the ones digit is "0", the time t17 is set to "0", and when the tens digit is not "0", the time t17 is set to "1". . As a result, as described later, the information processing device 100 can accurately detect the ratio Ra from the blinking state of the light emitting diode 50.

Next, the processing performed by the circuit breaker 1 will be explained using a flowchart. Figure 15 is a flowchart showing an example of the processing performed by the circuit breaker of the implementation pattern 1. In addition, the processing shown in Fig. 15 is executed when the circuit breaker 1 is in the ON state.

As shown in FIG. 15, the AD converter 32 of the detection unit 30 in the circuit breaker 1 samples the current signal of the zero-phase converter 31 to extract the instantaneous value of the leakage current (step S11). The effective value calculation unit 33 of the detection unit 30 calculates the effective value Ia of the leakage current based on the instantaneous value of the sampled leakage current (step S12).

The comparison unit 41 of the drive unit 40 reads the sensitivity current setting value Ith set by the sensitivity current value setting unit 42 (step S13). The comparison unit 41 determines whether or not the effective value Ia of the leakage current is greater than or equal to the sensitivity current setting value Ith (step S14). The state determination section 62 of the flicker control section 60 determines whether the effective value Ia of the leakage current is the user set value Iset when the comparison section 41 determines that the effective value Ia of the leakage current is not greater than the sensitivity current setting value Ith (step S14: No) The above (step S15).

The state determining section 62 of the flicker control section 60 determines whether the effective value Ia of the leakage current is greater than or equal to the user set value Iset (step S15: Yes), and determines whether the drive section 64 is outputting the ratio Ra corresponding to the previous calculation. The initial set (or a set) of the drive signal (step S16). Here, the first copy is explained. As mentioned above, the light-emitting diode 50 flashes information including the ratio Ra, because This flashes in the selected flashing pattern. The first formula refers to the minimum light-emitting diode 50 blinking required to perform blinking including the information of the ratio Ra. In addition, the blinking of the light-emitting diode 50 may be repeated instead of only one type. At this time, the first copy refers to the first copy of the light-emitting diode 50 that is the minimum required to perform the flashing including the information of the ratio Ra.

The ratio calculation unit 63 of the flicker control unit 60 determines that the drive unit 64 is not outputting the first copy of the drive signal corresponding to the ratio Ra calculated last time (step S16: No), and recalculates the relative The ratio Ra of the effective value Ia of the leakage current of the sensitivity current setting value Ith (step S17). In addition, when the state determination unit 62 determines that the drive unit 64 is not outputting the first copy of the driving signal corresponding to the calculated ratio Ra (step S16: No), not only the first copy has completed flashing, but also includes When the ratio Ra calculated last time has not been calculated after the circuit breaker 1 is started. The drive unit 64 of the flicker control unit 60 outputs a drive signal Sg corresponding to the ratio Ra recalculated by the ratio calculation unit 63 (step S18). Thereby, the light emitting diode 50 is blinked according to the ratio Ra of the effective value Ia of the leakage current to the sensitivity current setting value Ith. In addition, when the ratio Ra is recalculated in step S17, when the flowchart of FIG. 15 is implemented again, the recalculated ratio Ra is regarded as the ratio Ra calculated last time.

The trip output section 43 of the drive section 40 outputs a trip signal to the trigger circuit 44 when the effective value Ia of the leakage current is determined to be greater than the sensitivity current setting value Ith (step S14: Yes) (step S19). Thereby, the trip device 20 operates the opening and closing mechanism 10 to change the circuit 4 from the closed state to the open state.

The state determination unit 62 of the flicker control unit 60 determines whether the light-emitting diode 50 is processed when the process of step S19 is performed or the effective value Ia of the leakage current is not greater than the user set value Iset (step S15: No) Flashing (step S20). The state judging unit 62 is judging that the light-emitting diode 50 flickers In the middle (step S20: YES), the output of the driving signal Sg by the driving unit 64 is stopped, and the blinking of the light-emitting diode 50 is stopped (step S21).

When the state determination unit 62 determines that the driving unit 64 is outputting the first copy of the driving signal corresponding to the ratio Ra calculated last time (step S16: Yes); when the processing of step S18 ends, it is determined that the light-emitting diode 50 is not flickering When it is in the middle (step S20: No); or when the processing of step S21 ends, the circuit breaker 1 ends the processing shown in FIG. 15. In addition, the processing shown in Fig. 15 is repeated as long as the circuit breaker 1 is in the energized state.

Next, the information processing device 100 in the circuit breaker system 200 will be described. Fig. 16 is a diagram showing a configuration example of the information processing device of the first embodiment. As shown in FIG. 16, the information processing device 100 of Embodiment 1 includes: an imaging unit 110; a display unit 120; an input unit 130; a communication unit 140; and a processing unit 150. The information processing device 100 is, for example, a mobile device such as a smart phone or a tablet device. In addition, the information processing device 100 can be constituted by a server and a client. In this case, the processing by the processing unit 150 can be performed by the server instead of by the client, so the processing load on the client side can be reduced. Therefore, even clients with low processing power can be used. In addition, the client is not limited to mobile devices. For example, a digital camera with communication function can also be used as the client. In addition, the information processing device 100 is equivalent to a computer.

The imaging unit 110 has, for example, an imaging element such as a charge coupled device (CCD) image sensor or a complementary metal oxide semiconductor (CMOS) image sensor, and an optical system such as a lens. The image capturing unit 110 can image the circuit breaker 1 according to the user's operation on the input unit 130. The display unit 120 is, for example, a liquid crystal display (LCD) or an organic electroluminescence (EL) display.

The input unit 130 includes, for example, a keyboard, a mouse, a numeric pad, or a touch panel, etc., for the user of the information processing device 100 to operate. The communication unit 140 may be connected to a network such as a local area network (LAN) or a wide area network (WAN), and communicate with other devices through the network.

The processing unit 150 performs processing of displaying the current value of the leakage current of the circuit 4 on the display unit 120 in characters based on the image captured by the imaging unit 110. This processing unit 150 includes an acquisition unit 151, a conversion unit 152, and a display processing unit 153.

The acquiring unit 151 acquires information of the moving image of the circuit breaker 1 captured by the imaging unit 110 according to the user's operation on the input unit 130 from the imaging unit 110. The information of the dynamic image of the circuit breaker 1 includes information of the dynamic image of the characteristic marking area 58 exposed by the light-emitting diode 50. The conversion unit 152 converts the blinking state of the light-emitting diode 50 into the current value of the leakage current based on the information of the moving image of the circuit breaker 1 obtained by the obtaining unit 151. The display processing unit 153 displays the current value converted by the conversion unit 152 on the display unit 120.

The conversion unit 152 determines which of the first blinking mode, the second blinking mode, and the third blinking mode is in the blinking state of the light-emitting diode 50 based on the dynamic image information of the characteristic marking area 58 Flashing. For example, when there is no header, the conversion unit 152 may determine that the flicker of the light-emitting diode 50 is the flicker of the first flicker pattern. In addition, when there is a header, the conversion unit 152 can determine whether the blinking of the light-emitting diode 50 is the blinking of the second blinking pattern or the blinking of the third blinking pattern according to the type of the header.

The conversion unit 152 determines the ratio Ra from the flicker state of the light emitting diode 50 based on the determined flicker pattern. For example, when the determined flicker pattern is the first flicker pattern, the conversion unit 152 sets the ratio of the on period and the off period of the light emitting diode 50 in the period T1 as the ratio Ra.

In addition, the conversion unit 152 converts the blinking state of the processing unit 150 from time t9 to t15 into seven-digit binary information when the determined blinking mode is the second blinking mode. In the second blinking mode, when the imaging timing of the imaging unit 110 does not match the blinking timing of the light-emitting diode 50, there is a possibility that the lighting of the light-emitting diode 50 cannot be accurately detected.

Therefore, in the circuit breaker 1 of Embodiment 1, the period Ta1 is set to be more than three times the frame rate of the imaging unit 110. FIG. 17 is a diagram for explaining the relationship between the blinking mode in the second blinking mode of the first embodiment and the imaging result of the imaging unit. The display period Ta1 is an example of three frames of the imaging unit 110. In addition, in FIG. 17, the light emitting diode 50 is described as an LED. In addition, the frame rate of the imaging unit 110 is, for example, 30 fps, and the period Ta1 is, for example, 100 ms. The frame number shows the frame number of the captured image output from the camera unit 110.

In the first example shown in FIG. 17, the period of the three frames of the image captured by the imaging unit 110 coincides with the period Ta1 of the unit period of flashing of the light-emitting diode 50. Therefore, the conversion unit 152 can determine that the light-emitting diode 50 is continuously lit in the frame numbers 4 to 18.

In addition, in the second example and the third example shown in FIG. 17, in each period Ta1, because there is a frame where the light-emitting diode 50 turns on or off on the way, there is a frame that cannot be detected in this frame. The light-emitting diode 50 is lit up. In this regard, in each period Ta1, the conversion unit 152 can determine that the light emitting diode 50 is lit in the period Ta1 when two or more consecutive frames detect the lighting of the light emitting diode 50 in the period Ta1. In this way, the conversion unit 152 can accurately determine the header.

In addition, the conversion unit 152 is the same for the data. In each period Ta1, when two or more consecutive frames in the period Ta1 detect the lighting of the light-emitting diode 50, it is determined that the light-emitting diode 50 is in the period Ta1. Bright. Thereby, the conversion unit 152 can accurately determine the data.

The conversion unit 152 sets the time t5 when the determined blinking mode is the third blinking mode The blinking state of the light-emitting diode 50 in t14 is converted into a ten-digit value, and the blinking state of the light-emitting diode 50 in the time t17 to t26 is converted into a single-digit value.

In the third blinking mode, as in the second blinking mode, in each period Ta2, in terms of the frame in which the light-emitting diode 50 is turned on or off in the middle, there may be cases where the light-emitting diode 50 cannot be detected. Light up the situation. In this regard, the conversion unit 152 is in each period Ta2 in the header. When two or more consecutive frames in the period Ta2 detect the lighting of the light-emitting diode 50, it is determined that the light-emitting diode 50 is in the period Ta2. Bright. In this way, the conversion unit 152 can accurately determine the header. In addition, the length of the period Ta2 is the same as the length of the period Ta1.

In addition, in the circuit breaker 1, in the case of the third blinking mode, since the blinking pattern of the data is set as shown in FIG. 14, the conversion unit 152 can change the blinking pattern of the data in the third blinking mode The accuracy is well converted to the ratio Ra. FIG. 18 is a diagram for explaining the relationship between the flicker pattern of the data in the third flicker mode of the implementation pattern 1 and the imaging result of the imaging unit. In addition, in FIG. 18, the light emitting diode 50 is described as an LED.

In Figure 18, the first example is the period of one frame of the image taken by the camera unit 110 and the unit period of flashing of the light-emitting diode 50, and the second example is the period of one frame of the image taken by the camera 110 It is inconsistent with the unit period of the flashing of the light-emitting diode 50. In addition, the frame rate of the imaging unit 110 is, for example, 30 fps, and the period Ta3 is, for example, 33.3 ms.

As shown in Figure 18, in the ten digits of the first and second examples when the ratio Ra is "88%", the light-emitting diode 50 lights up continuously in the frame numbers 1 to 9. However, the conversion unit 152 ignores the frame whose frame number is 1. In addition, since the light emitting diode 50 continuously lights up in eight frames with frame numbers 2 to 9, the conversion unit 152 determines that the value of the tens digit is "8".

In addition, in the single digits of the first instance and the second instance when the ratio Ra is "88%", The light-emitting diode 50 lights up continuously in the frames with the frame numbers 13 to 21, but the conversion unit 152 ignores the frame with the frame number 13. Since the light-emitting diode 50 continuously lights up in eight frames with frame numbers 14 to 21, the conversion unit 152 can determine that the value of the single digit is "8".

In addition, when the ratio Ra is “11%”, the conversion unit 152 ignores the frame number 1 and the frame 13 in the same way as when the ratio Ra is “88%”. When the ratio Ra is “11%” in the ten digits of any one of the first example and the second example, the light-emitting diode 50 lights up in the frame number 2 of the frame. Therefore, the conversion unit 152 can determine that the value of the tens digit is "1".

In addition, in the single digit of either the first example and the second example when the ratio Ra is “11%”, the light-emitting diode 50 lights up in a frame with a frame number of 14. Therefore, the conversion unit 152 can determine that the value of the single digit is "1".

In this way, the conversion unit 152 ignores the frame number 1 and the frame 13 so as to accurately detect the ratio Ra.

In the characteristic indication area 58 of the above-mentioned circuit breaker 1, a text indicating the sensitivity current setting value Ith is added. When the imaging unit 110 captures the blinking state of the light emitting diode 50, the characteristic marking area 58 is also captured. The conversion unit 152 can detect the sensitivity current setting value Ith based on the information of the image output from the imaging unit 110. Furthermore, the conversion unit 152 can convert the ratio Ra into a leakage current current value based on the detected sensitivity current setting value Ith.

Figure 19 is a diagram showing an example of the characteristic marking area of the circuit breaker of the implementation type 1. As shown in FIG. 19, the characteristic indication area 58 of the main body cover 72 is provided with a sensitivity current setting value indication area 73 that displays the sensitivity current setting value Ith with text.

The sensitivity current setting value indication area 73 corresponds to each of a plurality of positions that can be moved by the handle 53a of the sensitivity switch 53, and the sensitivity current setting value is displayed by printing and other arrangements. Ith text. In the example shown in Fig. 19, the characters "500mA", "300mA", and "100mA" are arranged in the sensitivity current setting value indication area 73 as the characters for displaying the sensitivity current setting value Ith. In addition, in the example shown in Fig. 19, the handle 53a of the sensitivity switch 53 is located at a position corresponding to "100mA".

Here, assuming that the ratio Ra is “50%”, the sensitivity current setting value indication area 73 is in the state shown in FIG. 19. In addition, it is assumed that the imaging unit 110 has captured an image of the area 76 including the light-emitting diode 50, the sensitivity changeover switch 53, and the sensitivity current setting value indication area 73. At this time, the conversion unit 152 detects that the sensitivity current setting value Ith is "100mA" from the position of the handle 53a and the characters corresponding to the position of the handle 53a based on the image information output from the imaging unit 110. Since the ratio Ra is “50%” and the sensitivity current setting value Ith is “100 mA”, the conversion unit 152 determines that the current value of the leakage current is “50 mA”.

In addition, the characteristic labeling area 58 may also include a code information labeling area, which displays the information of the characteristic accuracy of the circuit breaker 1 obtained during the shipping test of the circuit breaker 1 after being two-dimensional coded. Fig. 20 is a diagram showing another example of the characteristic marking area of the circuit breaker of Embodiment 1. The characteristic indication area 58 shown in FIG. 20 includes a code information indication area 74 in addition to the sensitivity current setting value indication area 73.

The code information marking area 74 is configured with two-dimensional code information by printing etc. The two-dimensional code information is the characteristic accuracy of the circuit breaker 1 and the product specifications of the circuit breaker 1 obtained during the shipping test of the circuit breaker 1 Wait for the two-dimensional code to become. The characteristic accuracy of the circuit breaker 1 includes, for example, the detection error of the leakage current of the detection unit 30. The product specifications of the circuit breaker 1 include information such as rated voltage, rated current, and the manufacturing number of the circuit breaker 1, for example.

Here, it is assumed that the characteristic accuracy information contained in the code information marking area 74 includes The information that the detection error of the detection unit 30 is -5% is displayed. In addition, assuming that the ratio Ra is "50%", the sensitivity current setting value Ith is "100mA". In addition, it is assumed that the imaging unit 110 has captured the area 77 including the light-emitting diode 50, the sensitivity switching switch 53, the sensitivity current setting value indication area 73, and the code information indication area 74. At this time, the conversion unit 152 determines that the detection error of the detection unit 30 is "-5%" based on the information of the image in the code information marking area 74, and multiplies "50mA" by "1.05" to determine the error after correction. The current value of the current is "52.5mA".

In addition, the characteristic indication area 58 shown in FIG. 20 may also be a configuration that does not include the sensitivity current setting value indication area 73. At this time, the two-dimensional code information in the code information marking area 74 may include information obtained by two-dimensional coding of a plurality of sensitivity current setting values Ith that can be switched by the sensitivity switch 53. The conversion unit 152 can obtain information of a plurality of sensitivity current setting values Ith that can be switched by the sensitivity switch 53 from the two-dimensional code information in the code information indicating area 74. The conversion unit 152 can determine the current value of the leakage current with respect to each of the plurality of sensitivity current setting values Ith.

For example, assuming that the ratio Ra is "50%", the detection error of the detection unit 30 is "-5%". At this time, the conversion unit 152 calculates the current value of the leakage current when the sensitivity current setting value Ith is "100mA" as "52.5mA", and calculates the current value of the leakage current when the sensitivity current setting value Ith is "300mA". 157.5mA". In addition, the conversion unit 152 can calculate the current value of the leakage current when the sensitivity current setting value Ith is "500mA" as "262.5mA".

In the above-mentioned example, an example in which the sensitivity switch 53 is provided in the circuit breaker 1 has been described, but the circuit breaker 1 may have a configuration in which the sensitivity switch 53 is not provided. At this time, a sensitivity current setting value Ith marked with text can be displayed in the sensitivity current setting value labeling area 73. Figure 21 is a diagram showing an example of the characteristic marking area when the sensitivity switch is not provided in the circuit breaker of the first embodiment. Figure 22 shows the characteristic marking area when the sensitivity switch is not installed in the circuit breaker of implementation type 1. Diagram of another example.

In the example shown in FIG. 21, the sensitivity current setting value indication area 73 of the characteristic indication area 58 is arranged by printing or the like with a letter of "30 mA" as the current value of the leakage current. Here, assuming that the ratio Ra is "50%", the sensitivity current setting value indication area 73 is in the state shown in FIG. 21. At this time, the conversion unit 152 detects that the sensitivity current setting value Ith is "30 mA" based on the image information output from the imaging unit 110. Since the ratio Ra is “50%” and the sensitivity current setting value Ith is “30 mA”, the conversion unit 152 can determine that the current value of the leakage current is “15 mA”.

In the characteristic marking area 58 shown in Fig. 22, a code information marking area 75 displaying two-dimensional code information is arranged by printing or the like. The two-dimensional code information is the sensitivity current setting value Ith of the circuit breaker 1, the characteristic accuracy, and Product specifications are formed by QR code. The conversion unit 152 can determine the sensitivity current setting value Ith of the circuit breaker 1 and the detection error of the detection unit 30 based on the image information of the code information marking area 75.

Here, it is assumed that the information of the sensitivity current setting value Ith contained in the code information indication area 75 represents 30 mA, and the information of the detection error of the detection unit 30 represents “+10%”. In addition, assume that the ratio Ra is "50%". At this time, the conversion unit 152 determines that the sensitivity current setting value Ith is "30 mA" and the detection error of the detection unit 30 is "-5%" based on the image information of the sensitivity current setting value labeling area 73. In addition, the conversion unit 152 multiplies "15mA" by "0.90", and determines that the current value of the leakage current is "13.5mA".

In addition, the conversion unit 152 can obtain the product specification information of the circuit breaker 1 by converting the two-dimensional code information contained in the code information marking area 75 into text information.

Returning to Fig. 16, the description of the processing unit 150 of the information processing device 100 will continue. The display processing section 153 of the processing section 150 displays the current value of the leakage current obtained by the conversion section 152 on the display section 120. FIG. 23 is a diagram showing an example of the display screen of the display unit of the information processing device of Embodiment 1. FIG. 24 is a diagram showing another example of the display screen of the display part of the information processing device of Embodiment 1. In addition, in Fig. 24, the "set value" shows the current value of the rated sensitivity, and the "measured value" shows the current value of the leakage current detected by the detection unit 30 of the circuit breaker 1.

As shown in FIG. 23, the display screen 160 displays the manufacturing number of the circuit breaker 1, the current value of the leakage current, and the rated sensitivity current value. The rated sensitivity current value is the sensitivity current setting value Ith. The display screen 160 shown in FIG. 23 shows that the leakage current current value is "50 mA", and the sensitivity current setting value Ith is "100 mA".

In addition, on the display screen 160 shown in FIG. 24, the manufacturing number of the circuit breaker 1, the ratio Ra, and the current value of the leakage current with respect to each rated sensitivity current value are displayed. Specifically, the display screen 160 shown in FIG. 24 shows that the current value of the leakage current when the ratio Ra is "50%" and the sensitivity current setting value Ith is "100mA" is "50mA". In addition, the display screen 160 shown in Fig. 24 shows the current value of the leakage current when the sensitivity current setting Ith is "300mA" and the current value of the leakage current when the sensitivity current setting Ith is "500mA". The current value is "250mA". The user of the information processing device 100 can confirm the position of the display screen 160 shown in FIG. 24 and the position of the handle 53a of the sensitivity switch 53 of the circuit breaker 1 to grasp the current value of the leakage current.

In addition, the conversion unit 152 can determine the structure of the characteristic marking area 58 of the circuit breaker 1 based on the manufacturing number of the circuit breaker 1 and the like, and can convert the flicker state of 50 mA into a leakage current current value based on the determined result. For example, the conversion unit 152 can determine whether the characteristic marking area 58 of the circuit breaker 1 is the state shown in FIG. 20 or the state shown in FIG. 22 based on the manufacturing number of the circuit breaker 1 specifically identified from the two-dimensional code information.

In addition, in the above example, one shot performed by the imaging unit 110, except for the light-emitting In addition to the diode 50, the sensitivity current setting value marking area 73, the code information marking area 74, or the code information marking area 75 can also be photographed. However, the number of photographs performed by the photographing unit 110 may be more than two times. For example, the processing unit 150 can also determine the current value of the leakage current from the captured image of the light-emitting state of the light-emitting diode 50, the sensitivity current setting value labeling area 73, the code information labeling area 74, or the code information labeling area 75. .

Next, a flowchart is used to describe the processing performed by the processing unit 150 of the information processing device 100. FIG. 25 is a flowchart showing an example of processing performed by the processing unit of the information processing device of Embodiment 1.

As shown in FIG. 25, the acquisition unit 151 of the processing unit 150 acquires moving image information from the imaging unit 110 (step S31). The conversion unit 152 of the processing unit 150 determines the ratio Ra from the information of the moving image obtained by the obtaining unit 151 (step S32). In addition, the conversion unit 152 determines the rated sensitivity setting value from the information of the moving image acquired by the acquisition unit 151 (step S33). In addition, the conversion unit 152 determines the detection error of the detection unit 30 from the information of the moving image acquired by the acquisition unit 151 (step S34).

The conversion unit 152 calculates the current value of the leakage current from the ratio Ra determined in step S32, the rated sensitivity setting value determined in step S33, and the detection error of the detection unit 30 determined in step S34 (step S35). The display processing unit 153 of the processing unit 150 displays the current value of the leakage current calculated by the conversion unit 152 on the display unit 120 (step S36), and ends the processing shown in FIG. 25.

Fig. 26 is a diagram showing an example of the hardware configuration of the microcomputer of the circuit breaker of the implementation type 1. As shown in FIG. 26, the microcomputer 52 is a computer that includes a processor 161, a memory 162, and an interface circuit 163.

The processor 161, the memory 162, and the interface circuit 163 can be connected to each other through the bus 164. Give and receive information. The AD converter 32, a part of the flicker control unit 60, and a part of the jump output unit 43 can be realized by the interface circuit 163. The processor 161 executes the functions of the effective value calculation unit 33, the comparison unit 41, the sensitivity current value setting unit 42, the trip output unit 43, and the flicker control unit 60 by reading and executing the program stored in the memory 162 . The processor 161 is an example of a processing circuit, including one or more of a central processing unit (CPU), a digital signal processor (DSP), and a large scale integration (LSI) system .

The memory 162 includes RAM (Random Access Memory), ROM (Read Only Memory), flash memory (flash mermoy), EPROM (Erasable Programmable Read Only Memory), which can be erased More than one of programmable read-only memory) and EEPROM (registered trademark) (Electrically Erasable Programmable Read Only Memory). In addition, the memory 162 is a recording medium that records programs that can be read by a computer. The recording medium is a non-volatile or volatile semiconductor memory, one or more of magnetic disks, flexible memory media, optical disks, optical disks, and DVDs (Digital Versatile Discs). In addition, the microcomputer 52 may also include integrated circuits such as ASIC (Application Specific Integrated Circuits) and FPGA (Field-Programmable Gate Array).

In addition, the processing unit 150 of the information processing device 100 has the same hardware configuration as that shown in FIG. 26. A part of the acquisition unit 151 and a part of the display processing unit 153 are realized by the interface circuit 163. The processor 161 reads and executes the program stored in the memory 162 to perform the functions of the acquisition unit 151, the conversion unit 152, and the display processing unit 153. In addition, the processing unit 150 may include integrated circuits such as ASIC and FPGA.

In addition, in the first embodiment, the case where the circuit breaker 1 has one light-emitting diode 50 is described, but in terms of parts, this does not limit the case where the light-emitting diode 50 is a single one. For example, when the light-emitting diode 50 is to be blinked according to the ratio Ra, in terms of parts, two light-emitting diodes may be used to blink. That is, in terms of parts, even if two light-emitting diodes are used, for example, only one light-emitting diode 50 can generally perform the function of the light-emitting diode 50.

In addition, in the descriptions of FIGS. 3 to 25, an example in the case where the circuit breaker 1 is a leakage circuit breaker has been described, but the circuit breaker 1 may be an overcurrent circuit breaker that does not detect leakage. FIG. 27 is a block diagram showing another example of the specific structure of the circuit breaker of Embodiment 1. Hereinafter, constituent elements having the same functions as those of the circuit breaker 1 shown in FIG. 10 are given the same reference numerals and descriptions are omitted, and the description will be centered on the differences from the circuit breaker 1 shown in FIG. 10.

The circuit breaker 1 shown in FIG. 27 is different from the circuit breaker 1 shown in FIG. 10 in that it includes converters 31a, 31b, 31c and a rectifier circuit 34 instead of the zero-phase converter 31. The converters 31a, 31b, and 31c output current signals proportional to the energized currents of the three phases. For example, the converter 31a outputs a current signal proportional to the energized current of the U-phase, the converter 31b outputs a current signal proportional to the energized current of the V-phase, and the converter 31c outputs the energized current of the W-phase. Proportional current signal.

The rectifier circuit 34 has, for example, a plurality of diodes and a plurality of resistors, and converts analog current signals from the converters 31a, 31b, and 31c into analog voltage signals. The AD converter 32 converts the analog voltage signal from the rectifier circuit 34 into a digital signal. The effective value calculation unit 33 calculates the effective value Ib of the energizing current of the circuit 4 based on the digital signal output from the AD converter 32.

The comparison unit 41 compares the effective value Ib of the energization current calculated by the effective value calculation unit 33 with the sensitivity current setting value Ith. The trip output section 43 outputs a trip to the trigger circuit 44 when the effective value Ib of the energization current is greater than the set value Ith of the sensitivity current based on the comparison result made by the comparison section 41. Turn on the signal.

The flicker control unit 60 outputs a drive signal Sg for blinking the light-emitting diode 50 based on the effective value Ib of the energization current calculated by the effective value calculation unit 33. The method of generating the drive signal Sg based on the effective value Ib of the energizing current is the same as the method of generating the drive signal Sg based on the effective value Ia when the leakage occurs. That is, the flicker control unit 60 can use the effective value Ib of the energization current to output the driving signal Sg through the same processing as in the case of the effective value Ia of the leakage current. In addition, the hardware configuration of the circuit breaker 1 shown in FIG. 27 is the same as the hardware configuration shown in FIG. 26.

The processing unit 150 of the information processing device 100 can display the current value of the energizing current of the circuit 4 in characters based on the image obtained by the imaging unit 110 capturing the flicker of the light-emitting diode 50 shown in FIG. 27 Processing of the display unit 120. The characteristic indication area of the circuit breaker 1 shown in FIG. 27 is, for example, the same as the characteristic indication area 58 of the circuit breaker 1 described in FIGS. 19 to 22. The method of obtaining the current value of the current value of the energization current of the image obtained by the imaging unit 110 is the same as the method of obtaining the current value of the leakage current of the image obtained by the imaging unit 110.

In summary, the circuit breaker 1 of the first embodiment includes: an opening and closing mechanism unit 10, a trip device 20, a detection unit 30, a driving unit 40, a body casing 70, a light emitting diode 50, and a flicker control unit 60. The opening and closing mechanism unit 10 is an opening and closing circuit 4. The trip device 20 operates the opening and closing mechanism section 10. The detection unit 30 detects the leakage current or the current value of the energizing current of the circuit 4. The drive unit 40 drives the trip device 20 based on the detection result of the detection unit 30. The main body casing 70 covers the opening and closing mechanism section 10, the trip device 20, the detection section 30, and the drive section 40. The light emitting diode 50 is arranged in a position that can be viewed from the outside of the main body casing 70. The flicker control unit 60 blinks the light-emitting diode 50 based on the current value detected by the detection unit 30. Thereby, the space for displaying the detection value of leakage current or energization current can be reduced.

In addition, the flicker control unit 60 includes: a ratio calculation unit 63 that calculates the ratio Ra of the current value detected by the detection unit 30 to the sensitivity current setting value Ith; and a drive unit 64 that is based on the ratio calculation unit 63 The calculated ratio Ra makes the light emitting diode 50 blink. Thereby, the light-emitting diode 50 is blinked according to the ratio Ra, and even when the sensitivity current setting value Ith is different, the light-emitting diode 50 can still be blinked in the same manner.

In addition, the flicker control unit 60 is provided with: a memory unit 61 which stores the user setting value Iset set by the user; and a state determination unit 62 which determines whether the current value detected by the detection unit 30 is set by the user The value is above Iset. When the state determination unit 62 determines that the current value detected by the detection unit 30 is greater than or equal to the user set value Iset, the drive unit 40 blinks the light emitting diode 50 based on the ratio Ra calculated by the ratio calculation unit 63. Thereby, the light-emitting diode 50 blinks only when the current value detected by the detection unit 30 is greater than the user set value Iset. Therefore, when the leakage current or the energizing current is so small that it is not necessary for confirmation, the flicker of the light-emitting diode 50 can be suppressed. In addition, since the light-emitting diode 50 flashes when the current value detected by the detection unit 30 is higher than the user set value Iset, it can notify the user that a leakage current or an energized current above the user set value Iset has occurred. It can also have the function of alarm.

In addition, the ratio Ra, which belongs to the ratio of the sensitivity current setting value Ith to the current value, is set as the ratio of the light-on time to the light-off time of the light-emitting diode 50, so that the light-emitting diode 50 blinks. Thereby, the leakage current or the energizing current relative to the sensitivity current setting value Ith can be intuitively grasped by visual observation.

In addition, in a state where the circuit 4 is blocked due to the operation of the opening and closing mechanism section 10 performed by the trip device 20, the blinking control section 60 does not perform blinking of the light emitting diode 50. In this way, the power consumption of the circuit breaker 1 when the circuit breaker 1 is in the off state can be reduced.

In addition, the circuit breaker system 200 includes a circuit breaker 1 and an information processing device 100. The information processing device 100 includes an imaging unit 110, a conversion unit 152, and a display processing unit 153. Conversion part 152 Based on the imaging result of the light-emitting diode 50 of the imaging unit 110, the flicker state of the light-emitting diode 50 is converted into the current value of the leakage current or the current value of the energizing current. The display processing unit 153 displays the current value converted by the conversion unit 152 on the display unit 120. Thereby, the current value of the leakage current or the current value of the energizing current can be easily grasped.

In addition, a specific part of the main body casing 70 is attached with a text showing the sensitivity current setting value Ith, or a two-dimensional code containing information on the encoded sensitivity current setting value Ith. The specific part of the main body casing 70 is, for example, the area 76 shown in FIG. 19 or the area 77 shown in FIG. 20. The conversion unit 152 determines the sensitivity current setting value Ith based on the result of one imaging performed by the imaging unit 110 when the imaging unit 110 captures a specific part of the main body casing 70. The conversion unit 152 converts the flicker state of the light emitting diode 50 into the current value of the leakage current or the current value of the energizing current based on the determined sensitivity current setting value Ith. Thereby, as long as the specific part of the main body casing 70 is photographed, the blinking state of the light emitting diode 50 can be converted into the current value of the leakage current or the current value of the energizing current. Therefore, the user of the information processing device 100 can save labor and time of inputting the sensitivity current setting value Ith into the information processing device 100, for example.

In addition, the specific part of the main body casing 70 is arranged at a position that can be imaged by the imaging unit 110 simultaneously with the light-emitting diode 50. In this way, the user of the information processing device 100 does not need to separately photograph different positions, and the labor and time of the user of the information processing device 100 can be suppressed.

In addition, the specific portion of the main body housing 70 is provided with a handle 53a of the sensitivity switch 53 and a character corresponding to a plurality of positions where the handle 53a of the sensitivity switch 53 can move, and the sensitivity current setting value Ith is displayed. When the imaging unit 110 captures a specific part, the conversion unit 152 determines the sensitivity current setting value Ith based on the position of the handle 53a of the sensitivity switch 53. By this, in the case of the sensitivity switch 53, the leakage current or energization can also be accurately grasped. The current value of the current.

In addition, the two-dimensional code contains encoded information showing the accuracy of the characteristics of the circuit breaker 1 measured during the shipping test of the circuit breaker 1. When the imaging unit 110 photographs a specific part, the conversion unit 152 determines the characteristic accuracy of the circuit breaker 1 based on the information showing the encoded characteristic accuracy, and calculates the leakage current that has been corrected for the error based on the determined characteristic accuracy. The current value or the current value of the energizing current. Thereby, the leakage current or the current value of the energizing current can be grasped accurately.

The configuration shown in the above embodiment is an example of the content of the present invention, and may be combined with other known technologies, and part of the configuration may be omitted or changed without departing from the scope of the present invention.

1: Circuit breaker

2: power supply

3: load

4: Circuit

10: Opening and closing mechanism department

20: Tripping device

30: Inspection Department

40: Drive

50: LED

60: Flicker control section

70: body shell

Claims (11)

A circuit breaker is provided with: an opening and closing mechanism section, which opens and closes a circuit; a trip device, which operates the opening and closing mechanism section; a detection section, which detects the current value of the leakage current or energization current of the circuit; and the drive section is based on the foregoing The detection result of the detection unit drives the tripping device; the main body casing covers the opening and closing mechanism section, the tripping device, the detection section, and the drive section; a light-emitting diode is arranged on the main body The position viewed from the outside of the housing; and the flicker control unit, which makes the one light-emitting diode flicker based on the current value detected by the detection unit; the flicker control unit includes: a ratio calculation unit that calculates the The ratio of the current value detected by the detecting part to the set value of the sensitivity current; and the driving part, based on the ratio calculated by the ratio calculating part, makes the one light-emitting diode blink. As for the circuit breaker described in the first item of the scope of patent application, the flicker control unit is provided with: a memory unit, which memorizes the user setting value set by the user; and a state determination unit, which determines that the flicker Whether the detected current value is above the value set by the user; The drive unit blinks the one light-emitting diode based on the ratio calculated by the ratio calculation unit when the state determination unit determines that the current value detected by the detection unit is greater than the user set value. The circuit breaker described in item 2 of the scope of patent application, wherein the flicker control unit uses the ratio of the sensitivity current setting value to the current value as the ratio of the lighting time to the extinguishing time of the one light emitting diode, and Make the aforementioned one light-emitting diode blink. The circuit breaker according to any one of items 1 to 3 in the scope of patent application, wherein the flicker control section is in a state where the circuit is blocked by the operation of the opening and closing mechanism section performed by the trip device, The blinking of the aforementioned one light-emitting diode is not performed. A circuit breaker system is provided with: the circuit breaker described in any one of items 1 to 4 in the scope of the patent application; and an information processing device; the aforementioned information processing device is provided with: a camera unit; The result of the imaging result of the one light-emitting diode is to convert the flicker state of the one light-emitting diode into the current value of the leakage current or the current value of the energization current; and the display processing section will be performed by the conversion section. The converted current value is displayed on the display. The circuit breaker system described in item 5 of the scope of patent application, wherein the specific part of the body shell is attached with text showing the sensitivity current setting value, or two information containing the encoded sensitivity current setting value information Dimension code The conversion unit determines the sensitivity current setting value based on the imaging result of the imaging unit when the imaging unit captures the specific part, and based on the determined sensitivity current setting value, blinks the one light-emitting diode The state transitions to the current value of the leakage current or the current value of the energizing current. The circuit breaker system described in item 6 of the scope of patent application, wherein the specific part is arranged at a position that can be photographed by the imaging unit at the same time as the one light-emitting diode. The circuit breaker system described in item 7 of the scope of patent application, wherein the specific part is equipped with a handle with a sensitivity switch, and a text corresponding to each of the plurality of positions where the handle can be moved to display the sensitivity current setting value ; The conversion unit is to determine the sensitivity current setting value according to the position of the handle of the sensitivity switch when the specific part is captured by the imaging unit. The circuit breaker system described in item 6 of the scope of patent application, wherein the two-dimensional code contains encoded information showing the accuracy of the characteristics of the circuit breaker measured during the shipping test of the circuit breaker; The conversion unit determines the characteristic accuracy of the circuit breaker based on the information showing the characteristic accuracy after the encoding when the specific part is photographed by the imaging unit, and calculates the accuracy of the characteristic according to the determined characteristic accuracy. The current value of the leakage current or the current value of the energizing current after error correction. An information processing method is performed by a computer. The information processing method includes: an obtaining step of obtaining information of a dynamic image obtained by photographing a region of a circuit breaker including a light-emitting diode by a camera, the circuit breaker According to the leakage current or the current value of the energizing current of the circuit detected by the detection unit, the aforementioned one light-emitting diode flickers; The conversion step is to convert the flashing state of the one light-emitting diode into the current value of the leakage current or the current value of the energization current based on the information of the dynamic image obtained in the foregoing obtaining step; The current value after the conversion step. An information processing program that is executed by a computer: the obtaining step is to obtain the information of the dynamic image obtained by shooting the region of the circuit breaker including a light-emitting diode by the camera unit, and the circuit breaker is based on the information detected by the detection unit The leakage current of the circuit or the current value of the energizing current causes the aforementioned one light-emitting diode to flicker; the conversion step is to convert the flicker state of the aforementioned one light-emitting diode to the aforementioned leakage based on the information of the dynamic image obtained in the aforementioned obtaining step The current value of the current or the current value of the aforementioned energizing current; and the display step is to display the current value converted through the aforementioned conversion step.

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