Specific devices, light-emitting devices and fixtures

Abstract

To provide an identification apparatus capable of identifying the number of LED modules, a light-emitting device, a fitting and an identification method.SOLUTION: An identification apparatus comprises: a control device which is electrically connected to one end of a data line and capable of individually controlling emissions of a plurality of LED modules by transmitting a plurality of pieces of control data as many as the number of the LED modules from the one end of the data line to the plurality of LED modules; and a connection line electrically connecting the other end of the data line to a control unit. The control device repeats processing, in which one piece of control data is transmitted to the one end of the data line and it is determined whether or not the control data are detected via the connection line after the one piece of control data is transmitted, until detecting the control data and on the basis of the number of times of transmitting the control data until the control data are detected, the number of LED modules connected to the data line is identified.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a specification device, a light-emitting device, a fixture, and a specification method. [Background technology]

[0002] Conventionally, there has been known a light emitting device that lights up an illumination unit in various lighting patterns, in which a plurality of LED modules, each having one or more light emitting diodes (LEDs), are arranged. The illumination unit is configured by connecting a plurality of LED modules in series to data lines, and is, for example, an LED strip (see, for example, Patent Document 1).

[0003] The light emitting device can light up the multiple LED modules in various lighting patterns by transmitting multiple pieces of control data, the number of which is equal to the number of LED modules, from one end of the data line to the multiple LED modules. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2018-63885 Summary of the Invention [Problem to be solved by the invention]

[0005] In order to light up multiple LED modules, the light emitting device needs to acquire information on the number of LED modules connected to the data line in advance. In conventional light emitting devices, it is difficult to determine the number of LED modules, so currently, an operator must determine the number of LED modules.

[0006] The present disclosure aims to provide an identification device, a light-emitting device, a fixture, and an identification method that can identify the number of LED modules. [Means for solving the problem]

[0007] One aspect of the present disclosure is a determination device for determining the number of LED modules connected in series between one end and the other end of a data line, the determination device comprising: a control device electrically connected to one end of the data line and capable of individually controlling the light emission of a plurality of LED modules by transmitting a plurality of control data, the number of which is equal to the number of LED modules, from the one end of the data line to the plurality of LED modules; and a connection line electrically connecting the other end of the data line to the control device, wherein when determining the number of LED modules, the control device transmits one piece of control data to one end of the data line, and after transmitting one piece of control data, determines whether or not the control data has been detected via the connection line, repeating this process until the control data is detected, and determines the number of LED modules connected to the data line based on the number of times the control data has been transmitted before the control data is detected. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a diagram illustrating an example of the configuration of a light emitting device according to an embodiment of the present invention. [Figure 2] 4A to 4C are diagrams illustrating a method for controlling the LED module according to the present embodiment. [Figure 3] 10A and 10B are diagrams illustrating a method for specifying the number of LED modules according to the present embodiment. [Figure 4] FIG. 4 is a flowchart of a method for specifying the number of LED modules according to the present embodiment. [Figure 5] 10A and 10B are diagrams illustrating a modified example of the configuration of the light emitting device according to the embodiment. [Figure 6] FIG. 1 is a diagram showing an example of a fixture having a light-emitting device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0009] As shown in FIG. 1, a light emitting device 1 according to this embodiment includes a light emitting unit 2 and a specifying device 3.

[0010] The light-emitting unit 2 includes an illumination unit 11 and a substrate 12. The light-emitting unit 2 is attached to a fixture such as a front door. The light-emitting unit 2 lights up in conjunction with, for example, an electric lock. The light-emitting device 1 is not particularly limited in terms of the attachment position of the light-emitting unit 2. The light-emitting unit 2 can be attached to a variety of commercial products.

[0011] The "connection" described below refers to an electrical connection. An electrical connection means that power or an electrical signal can be transmitted directly or indirectly. The electrical connection may be via a component such as a cable, resistor, capacitor, diode, or switch.

[0012] The illumination unit 11 includes a plurality of LED modules 20 (20-1 to 20-n), a power line 21, a ground line 22, a data line 23, and a substrate 24. The substrate 24 is an example of a first substrate.

[0013] The plurality of LED modules 20 are connected in series between one end and the other end of the data line 23. In this embodiment, n LED modules 20-1 to 20-n are connected in series to the data line 23. n is an integer of 2 or more. The code after the hyphen distinguishes between multiple components of the same type. When multiple configurations of the same type are not to be distinguished from one another, the code after the hyphen may be omitted. The plurality of LED modules 20-1 to 20-n are mounted on a substrate 24.

[0014] The LED module 20 is connected to a power supply line 21 and a ground line 22. The LED module 20 is operated by a power supply voltage V supplied from the power supply line 21.

[0015] The LED module 20 includes one or more LEDs 30 and a microcomputer 31. In the example shown in Fig. 1, the LED module 20 includes three LEDs 30-1 to 30-3. In the LED module 20 illustrated in Fig. 1, the three LEDs 30-1 to 30-3 and the microcomputer 31 are packaged.

[0016] LED 30-1 is a red light emitting diode. LED 30-2 is a green light emitting diode. LED 30-3 is a blue light emitting diode. The LED module 20 is capable of full color display. For example, LEDs 30-1 to 30-3 are surface-mounted LEDs. The light emitting color of the LEDs 30 is not particularly limited and may be any color. In the example shown in FIG. 1, the LED module 20 has three LEDs 30, but the number of LEDs 30 is not limited. For example, the LED module 20 may have four LEDs 30: red, green, blue, and white.

[0017] The microcomputer 31 turns on or off at least one of the LEDs LED30-1, LED30-2, and LED30-3 based on the control data D transmitted from the data line 23. The control data D is data for controlling one LED module 20. When a plurality of pieces of control data D are transmitted from the data line 23, the microcomputer 31 detects only the first piece of control data D and transmits the remaining pieces of control data D to the subsequent LED module 20. The control data D is data of a predetermined number of bits. The control data D stores information about the brightness of each of the LEDs LED30-1 to LED30-3.

[0018] The power supply line 21 is a line for supplying a power supply voltage to the n number of LED modules 20 mounted on the substrate 24. The power supply line 21 is connected to each of the n number of LED modules 20 mounted on the substrate 24. The power supply line 21 is mounted on the substrate 24. For example, the power supply line 21 is a pattern wiring.

[0019] The ground line 22 is a line connected to the ground (GND). The ground line 22 is connected to each of the n LED modules 20 mounted on the substrate 24. The ground line 22 is mounted on the substrate 24. For example, the ground line 22 is a pattern wiring.

[0020] The n LED modules 20 are connected in series to the data line 23. One end of the data line 23 is connected to the control device 50. Control data D transmitted from the control device 50 is input to one end of the data line 23. The data line 23 is, for example, a communication line for single-wire serial communication. The data line 23 is mounted on a substrate 24. For example, the data line 23 is a pattern wiring.

[0021] The substrate 24 is, for example, a tape substrate or a flexible substrate. An electrode portion 24a is provided at one end of the substrate 24. An electrode portion 24b is provided at the other end of the substrate 24.

[0022] The electrode section 24a is connected to the control device 50. The electrode section 24a includes an electrode 21a, an electrode 22a, an electrode 23a, and an electrode 41a. One end of a power supply line 21 is connected to the electrode 21a. One end of a ground line 22 is connected to the electrode 22a. One end of a data line 23 is connected to the electrode 23a.

[0023] The electrode section 24b includes electrodes 21b, 22b, 23b, and 41b. The other end of the power line 21 is connected to electrode 21b. The other end of the ground line 22 is connected to electrode 22b. The other end of the data line 23 is connected to electrode 23b. Electrode 23b is connectable to electrode section 24a of the substrate 24 of another decorative illumination section 11. By connecting electrode section 24b to electrode section 24a of the substrate 24 of another decorative illumination section 11, the decorative illumination section 11 is extended.

[0024] The specific device 3 includes a connection line 40 and a control device 50 .

[0025] The connection line 40 electrically connects the other end of the data line 23 to the control device 50. The connection line 40 is a signal line for delivering the control data D output from the other end of the data line 23 to the control device 50. For example, the connection line 40 is a pattern wiring.

[0026] In the example shown in FIG. 1, the connection line 40 includes a first connection line 40a and a second connection line 40b.

[0027] The first connection wire 40a is provided on the substrate 24 on which the illumination unit 11 is mounted. One end of the first connection wire 40a is connected to the control device 50, and the other end is connected to the second connection wire 40b. An electrode 41a is provided on one end of the substrate 24. An electrode 41b is provided on the other end of the substrate 24. One end of the first connection wire 40a is connected to the electrode 41a, and the other end is connected to the electrode 41b.

[0028] The second connection line 40b is provided on a substrate 12 different from the substrate 24 on which the first connection line 40a is mounted. The second connection line 40b electrically connects the other end of the first connection line 40a to the other end of the data line 23. One end of the second connection line 40b is connected to the other end of the data line 23 via an electrode 23b, and the other end is connected to the other end of the first connection line 40a via an electrode 41b.

[0029] 1, a portion of the connection line 40 (first connection line 40a) is provided on the substrate 24, and the other portion of the connection line 40 (second connection line 40b) is provided on the substrate 12. However, this is not limiting, and the entire connection line 40 may be provided on the substrate 24.

[0030] Substrate 12 is attached to substrate 24 to protect electrode portion 24b. Substrate 12 is detachable from substrate 24. Substrate 12 is provided with second connection lines 40b. When substrate 12 is attached to substrate 24, one end of second connection line 40b is connected to the other end of data line 23 via electrode 23b, and the other end of second connection line 40b is connected to the other end of first connection line 40a via electrode 41b. Substrate 12 is an example of a second substrate.

[0031] The control device 50 includes a power supply unit 51 and a control unit 52 .

[0032] The power supply unit 51 generates a power supply voltage V. The power supply unit 51 generates the power supply voltage V from a voltage supplied from an external power source such as a power adapter. The power supply unit 51 supplies the generated power supply voltage V to the illumination unit 11. For example, when the control device 50 is electrically connected to the illumination unit 11, the power supply voltage V is supplied to the plurality of LED modules 20-1 to 20-n via the power line 21.

[0033] The control unit 52 may include a processor such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit) and a non-volatile or volatile semiconductor memory (e.g., RAM (Random Access Memory), ROM (Read Only Memory), flash memory, EPROM (Erasable Programmable Read Only Memory), or EEPROM (Electrically Erasable Programmable Read Only Memory)). For example, the control unit 52 may be a microcontroller such as an MCU. The control unit 52 includes a detection unit 60 and a processing unit 61.

[0034] The control unit 52 is electrically connected to one end of the data line 23. The control unit 52 can individually control the light emission of the LED modules 20-1 to 20-n by transmitting a plurality of pieces of control data D, the number of which is equal to the number of LED modules 20-1 to 20-n, from one end of the data line 23 to the plurality of LED modules 20-1 to 20-n. The control unit 52 can individually control the light emission of the LED modules 20-1 to 20-n by continuously transmitting n pieces of control data D to one end of the data line.

[0035] The control unit 52 has a function of identifying the number of LED modules 20 in the illumination unit 11 connected to the control device 50.

[0036] The control unit 52 includes a detection unit 60 and a processing unit 61 .

[0037] The detection unit 60 is connected to one end of the connection line 40 via the electrode 41a. The detection unit 60 detects the control data D from the other end of the data line 23 via the connection line 40. When the detection unit 60 detects the control data D, it outputs the detection result to the processing unit 61.

[0038] The processing unit 61 has a function of identifying the number of LED modules 20 in the illumination unit 11 connected to the control device 50. When identifying the number of LED modules, the processing unit 61 repeats an identification process, which is a process of performing a transmission process and a determination process, until the detection unit detects control data. The transmission process transmits one piece of control data D to one end of the data line 23. The determination process determines whether the detection unit 60 has detected the control data D via the connection line 40 after the transmission process.

[0039] For example, if the detection unit 60 does not detect the control data D until a predetermined time has elapsed since the transmission process was performed, the processing unit 61 determines in the determination process that the control data D has not been detected. If the processing unit 61 determines that the detection unit 60 has not detected the control data D, it executes the identification process again.

[0040] The processing unit 61 identifies the number of LED modules 20 connected to the data line 23 based on the number of times the control data D was transmitted before the detection unit 60 detected the control data D. The processing unit 61 determines the number of LED modules 20 connected to the data line 23 by subtracting "1" from the number of times the control data D was transmitted before the detection unit 60 detected the control data D. In other words, the processing unit 61 identifies the number of LED modules 20 in the illumination unit 11 by subtracting "1" from the number of times the identification process was performed before the control data D was detected.

[0041] A method for controlling the LED module 20 in the control device 50 will be described with reference to FIG.

[0042] When the control unit 52 controls n LED modules 20-1 to 20-n in the illumination unit 11, the control unit 52 continuously transmits the same number of control data D as the number of LED modules 20 to one end of the data line 23. The LED module 20 extracts only the first control data D from the multiple control data D flowing through the data line 23, and transmits the remaining control data D to the LED module 20 in the subsequent stage.

[0043] The LED module 20-1 extracts only the first control data D from the n pieces of control data D input via the data line 23, and transmits the remaining control data D to the subsequent LED module 20. The LED module 20-2 extracts only the first control data D from the (n-1) pieces of control data D flowing from the LED module 20-1 via the data line 23, and transmits the remaining control data D to the subsequent LED module 20. The LED module 20-n extracts one piece of control data D flowing from the LED module 20-(n-1) via the data line 23. One piece of control data D is supplied to each of the LED modules 20-1 to 20-n. Each LED module 20 controls the lighting of LED 30-1, LED 30-2, and LED 30-3 based on the extracted control data D.

[0044] A method for identifying the number of LED modules 20 in the illumination unit 11 will be described with reference to FIG.

[0045] The control data D coming out from the other end of the data line 23 is transmitted to the control device 50 via the connection line 40. When the number of pieces of control data D sent from the control unit 52 to the data line 23 exceeds the number of LED modules 20 in the illumination unit 11, the control data D comes out from the other end of the data line 23. When the control data D is being supplied to each of the LED modules 20 in the illumination unit 11 and the control data D is sent from the control unit 52 to the data line 23, the control data D is not extracted by the LED module 20 and is output from the other end of the data line 23. The control unit 52 transmits the control data D one by one to the data line 23. When the control unit 52 detects the control data D output from the other end of the data line 23 via the connection line 40, it determines the number of LED modules by subtracting "1" from the number of times the control data D was sent. 3, the control unit 52 transmits the control data D one by one, and detects the control data D via the connection line 40 when (n+1) pieces of control data D have been transmitted. In this case, the control unit 52 determines the number of LED modules 20 to be "n", which is the number obtained by subtracting "1" from (n+1).

[0046] The flow of a method for specifying the number of LED modules 20 in the illumination unit 11 will be described with reference to FIG.

[0047] The control unit 52 has a variable X. The variable X indicates the number of times that the control data D has been transmitted. When the control unit 52 starts the process of identifying the number of LED modules 20 in the illumination unit 11, the control unit 52 initializes the variable X to "0" (step S101). After initializing the variable to "0", the control unit 52 transmits one piece of control data D (step S102). After transmitting one piece of control data D, the control unit 52 adds "1" to the variable X (step S103). The control unit 52 determines whether or not the control data D has been detected within a certain time period since transmitting one piece of control data D (step S104).

[0048] If the control unit 52 has not detected the control data D from the connection line 40 until a certain time has elapsed since the control data D was transmitted, the control unit 52 proceeds to step S102. If the control unit 52 detects the control data D from the connection line 40 until a certain time has elapsed since the control data D was transmitted, the control unit 52 stops transmitting the control data D. If the control unit 52 detects the control data D from the connection line 40 until a certain time has elapsed since the control data D was transmitted, the control unit 52 subtracts "1" from the variable X at that time to set the number of LED modules (step S105).

[0049] The identifying device 3 is electrically connected to one end of the data line 23. The identifying device 3 includes a control unit 52 and a connection line 40. The control unit 52 transmits a plurality of pieces of control data D, the number of which corresponds to the number of LED modules 20, from one end of the data line 23 to the plurality of LED modules 20, thereby individually controlling the light emission of the plurality of LED modules 20. The connection line 40 electrically connects the other end of the data line 23 to the control unit 52. When identifying the number of LED modules 20, the control unit 52 transmits one piece of control data D to one end of the data line 23, and after transmitting one piece of control data D, the control unit 52 repeats an identification process of determining whether or not the control data D has been detected via the connection line 40, until the control data D is detected. The control unit 52 identifies the number of LED modules 20 based on the number of times the control data D has been transmitted until the control data D is detected.

[0050] With this configuration, the identification device 3 can identify the number of LED modules 20 in the illumination unit 11. For example, even if the number of LED modules 20 connected to the data line 23 changes due to the extension or cutting of the illumination unit 11, the worker does not need to count the number of LED modules 20.

[0051] When installing LEDs on commercial materials such as entrance doors, which vary in length, size, and shape depending on the site, a worker must go to the site and check the number of LED modules. Because the control device 50 itself identifies the number of LED modules, the worker does not have to go through the trouble of checking the number of LED modules. The light-emitting device 1 can also be applied when the length of the LED strip can be changed by the user and installed on a vehicle, etc.

[0052] The connection line 40 may include a first connection line 40a and a second connection line 40b. The first connection line 40a may be provided on a substrate 24 on which a plurality of LED modules 20 are mounted, and may be electrically connected to the control unit 52. The second connection line 40b may be provided on a different substrate 12 from the first connection line 40a, and may electrically connect the first connection line 40a to the other end of the data line 23. The substrate 12 is attached to the substrate 24 to protect the electrode unit 24b mounted on the substrate 24, and may be detachable from the substrate 24.

[0053] This configuration allows a path to be formed for returning the control data D from the other end of the data line 23 to the control device 50, and also makes it possible to protect the electrode portion 24b.

[0054] The embodiments of this disclosure have been described in detail above with reference to the drawings, but the specific configuration is not limited to this embodiment, and includes designs within the scope that do not deviate from the gist of this disclosure.

[0055] For example, as shown in FIG. 5, the substrate 12 may be removed from the substrate 24, and a substrate 70 with a sensor may be attached to the substrate 24. The light emitting device 1 includes, for example, the substrate 70. The substrate 70 is an example of a second substrate. A sensor 71, a power supply line 72, a ground line 73, a logic circuit 74, a first signal line 75, a second signal line 76, and a third signal line 77 are mounted on the substrate 70. The second connection line 40b is an example of the second signal line 76 and the third signal line 77. The substrate 70 is an example of the second substrate.

[0056] The power supply line 72, the ground line 73, the first signal line 75, the second signal line 76, and the third signal line 77 are, for example, patterned wiring.

[0057] The power supply line 72 is connected to the sensor 71. The sensor 71 is, for example, a human presence sensor. The sensor 71 may be a sensor other than a human presence sensor. The power supply line 72 is a wire for supplying a power supply voltage to the sensor 71.

[0058] The ground line 73 is connected to the sensor 71. The ground line 73 is connected to the ground.

[0059] The logic circuit 74 is an OR circuit having two input terminals 74a and 74b and one output terminal 74c.

[0060] The first signal line 75 electrically connects the sensor 71 to the input terminal 74a, the second signal line 76 is connected to the input terminal 74b, and the third signal line 77 is connected to the output terminal 74c.

[0061] When the substrate 70 is attached to the substrate 24, the other end of the power supply line 21 is connected to the power supply line 72, the other end of the ground line 22 is connected to the ground line 73, the second signal line 76 is connected to the other end of the data line 23, and the other end of the first connection line 40a is connected to the third signal line 77. The measurement result obtained by the sensor 71 is input to an input terminal 74a of the logic circuit 74 via a first signal line 75. The logic circuit 74 outputs the measurement result input to the input terminal 74a from an output terminal 74c. Therefore, the measurement result is detected by the detection unit 60 via the third signal line 77 and the first connection line 40a. The processing unit 61 may transmit n pieces of control data D to the data line 23 based on the measurement results detected by the detection unit 60.

[0062] When a specific process is executed while the board 70 is attached to the board 24, the control data D output from the other end of the data line 23 is input to the input terminal 74b via the second signal line 76. The logic circuit 74 outputs the control data D input to the input terminal 74b from the output terminal 74c. Therefore, the control data D is detected by the detection unit 60 via the third signal line 77 and the first connection line 40a.

[0063] 5, by attaching substrate 70 to substrate 24, electrode portion 24b can be protected, and connection line 40 can be used as the wiring for transmitting the measurement results of sensor 71 to control device 50. Power line 21 and ground line 22 can be used as the power line and ground line for applying power supply voltage V from power supply unit 51 to sensor 71.

[0064] The control unit 52 may determine whether the number of identified LED modules exceeds a threshold value. If the number of identified LED modules exceeds the threshold value, the control unit 52 may output an error or stop outputting the control data D. The threshold value is the maximum number of LED modules that the control device 50 can control. This allows the control device 50 to ensure safety even when the number of LED modules 20 connected exceeds the threshold value.

[0065] The light-emitting device 1 may be installed in a fitting 200 as exemplified in FIG. 6. The fitting 200 is equipped with the light-emitting device 1. The fitting 200 exemplified in FIG. 6 is an entrance door of a building. For example, the strip-shaped light-emitting unit 2 is installed on the door body 210 or the frame body 220 so as to extend linearly in the vertical direction. The identifying device 3 is installed appropriately inside or around the fitting 200. The sensor 71, which is a human presence sensor, is installed on the top of the fitting 200 and may detect when a person enters a predetermined area near the fitting 200. The fitting 200 may be a double door. [Explanation of symbols]

[0066] 1...light emitting device, 2...light emitting section, 3...specific device, 11...illumination section, 12, 24, 70...substrate, 50...control device, 52...control section

Claims

1. A device for identifying the number of LED modules connected in series between one end and the other end of a data line, a control device electrically connected to one end of the data line, the control device being capable of individually controlling light emission of the plurality of LED modules by transmitting a plurality of control data, the number of which corresponds to the number of the LED modules, from the one end of the data line to the plurality of LED modules; a connection line electrically connecting the other end of the data line to the control device; Equipped with the LED module extracts the first control data from the plurality of control data and transmits the other control data to the subsequent LED module; When specifying the number of the LED modules, the control device transmits one piece of the control data to one end of the data line, and after transmitting the one piece of the control data, repeats a process of determining whether or not the control data has been detected via the connection line until the control data is detected, and specifies the number of the LED modules connected to the data line based on the number of times the control data has been transmitted until the control data is detected. Specific equipment.

2. the control device determines the number of times the control data has been transmitted minus 1 as the number of the LED modules connected to the data line; The identification device according to claim 1 .

3. The identifying device according to claim 1 or 2; a plurality of the LED modules connected in series between one end and the other end of the data line; A light emitting device comprising:

4. the connecting lines include a first connecting line and a second connecting line; the first connection line is provided on a first substrate on which the plurality of LED modules are mounted and is electrically connected to the control device; the second connection line is provided on a second substrate different from the first connection line, and electrically connects the first connection line to the other end of the data line; The light emitting device according to claim 3 .

5. the first substrate is a tape substrate or a flexible substrate; the second substrate is a substrate that protects an electrode portion provided at an end of the first substrate by being attached to the first substrate, and is detachable from the first substrate. The light emitting device according to claim 4 .

6. a human presence sensor is mounted on the second board; When the second substrate is attached to the first substrate, the measurement result of the human presence sensor is transmitted to the control device via the connection line. The light emitting device according to claim 5 .

7. A fixture comprising the light-emitting device according to any one of claims 3 to 6.

8. A specific device; a plurality of LED modules connected in series between one end and the other end of the data line; Equipped with The specific device is a control device electrically connected to one end of the data line, the control device being capable of individually controlling light emission of the plurality of LED modules by transmitting a plurality of control data, the number of which corresponds to the number of the LED modules, from the one end of the data line to the plurality of LED modules; a connection line electrically connecting the other end of the data line to the control device; Equipped with When specifying the number of the LED modules, the control device transmits one piece of the control data to one end of the data line, and after transmitting one piece of the control data, repeats a process of determining whether or not the control data has been detected via the connection line until the control data is detected, and specifies the number of the LED modules connected to the data line based on the number of times the control data has been transmitted until the control data is detected; the connecting lines include a first connecting line and a second connecting line; the first connection line is provided on a first substrate on which the plurality of LED modules are mounted and is electrically connected to the control device; the second connection line is provided on a second substrate different from the first connection line, and electrically connects the first connection line to the other end of the data line; Light-emitting device.

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