One-way one-to-many communication LED power supply programming method with feedback mechanism

Abstract

The invention provides a one-way one-to-many communication light-emitting diode (LED) power supply programming method with a feedback mechanism, which comprises the following steps that: a user firstly powers on an LED power supply, a central processing unit (CPU) in the LED power supply turns on a data receiving switch to start timing and detect data, and meanwhile, the user presses a sending key of a handheld programmer within 2 seconds when the LED power supply is powered on; if the LED power supply does not receive effective data for more than 2 seconds, the data switch is turned off, the data port is prevented from influencing an external dimming signal, and the LED power supply enters a normal lighting mode and receives external dimming control; if the LED power supply receives effective data, the level of the dimming wire is pulled up or pulled down, so that an indicator lamp connected to the dimming wire in the handheld programmer is turned on or off circularly to feed back the transceiving state to a user, the problem that feedback cannot be performed in one-way communication is solved, and the problem of signal conflict existing in multi-machine simultaneous communication is also solved.

Description

Technical Field

[0001] The invention belongs to the technical field of LED lighting power supplies, and in particular relates to a unidirectional one-to-many communication LED power supply programming method with a feedback mechanism. Background Art

[0002] The existing LED power supply programming system uses a two-way communication method, which can only perform one-to-one communication programming. When all the projects have been installed and the signals have been connected, it is impossible to perform batch operations one-to-many, and can only be removed one by one for individual programming. At the same time, in the known one-to-many one-way communication system, such as the famous DMX512 lighting control system, all slaves cannot feedback to the host or user regardless of whether they receive correct data. At the same time, in the known multi-machine two-way communication system, each slave must be set with a unique address, and the architecture is complex. Summary of the invention

[0003] The present invention proposes a one-way one-to-many communication LED power programming method with a feedback mechanism. The purpose of the present invention is to provide a one-way communication programming system with a host to multiple slaves with a feedback mechanism, and all slaves do not need to set unique addresses.

[0004] The technical solution of the present invention is implemented as follows: a one-way one-to-many communication LED power supply programming method with a feedback mechanism, the method comprising the following steps:

[0005] Power on the LED power supply, and its internal CPU turns on the data receiving switch to start timing and detecting data. At the same time, press the send button of the handheld programmer within 2 seconds of the LED power supply being powered on.

[0006] If the LED power supply does not receive valid data for more than 2 seconds, the data switch will be turned off, the LED power supply will enter the normal lighting mode, and accept external dimming control.

[0007] If the LED power supply receives valid data, it will raise or lower the level of the dimming light, causing the indicator light connected to the dimming light inside the handheld programmer to cycle on and off to provide feedback on the receiving and sending status to the user.

[0008] The user first powers on the slave (LED power supply), and its internal CPU turns on the data receiving switch to start timing and detect data. At the same time, the user should press the send button of the host (handheld programmer) within 2 seconds of the slave powering on. If the slave does not receive valid data for more than 2 seconds, it turns off the data switch, enters the normal lighting mode, and accepts external dimming control. If the slave receives valid data, it raises and lowers the level of the dimming light, and then the indicator light connected to the dimming light in the host turns on and off for 3 seconds to feedback to the user whether the transmission and reception are normal.

[0009] As a preferred embodiment, the handheld programmer is the host and there is only one, the LED power supply is the slave and there are one or more, and data is sent through a single host to one or more slaves in a one-way communication. After receiving the data, the slave pushes the indicator light in the host to turn on and off for 3 seconds to provide feedback to the user.

[0010] As a preferred implementation, all slaves do not need to set independent addresses, and human-computer interaction is performed by programming the slaves individually or by batch synchronous operation programming.

[0011] As a preferred implementation, the two dimming lines in the LED power supply are multiplexed for data communication transmission function. If no valid programming data is received 2 seconds after the LED power supply is powered on, the data switch is turned off, thereby disconnecting the data port from the dimming line to prevent the data port from affecting the dimming signal.

[0012] After adopting the above technical scheme, the beneficial effects of the present invention are as follows: compared with the existing similar products that can only operate one-to-one in two-way data communication programming, the present invention can complete the simultaneous programming of multiple slaves by one host, and compared with the existing one-way data communication system that cannot provide feedback, the slave of the present invention can provide feedback to the user by raising or lowering the level of the low light so that the indicator light inside the host flashes regularly. Compared with the existing multi-machine communication that requires setting a unique address for each slave, the slave of the present invention does not need to set an address. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 The schematic diagram of the circuit of the embodiment of the present invention is shown in FIG. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] Example:

[0017] like Figure 1 As shown, a one-way one-to-many communication LED power programming method with a feedback mechanism comprises the following steps:

[0018] Power on the LED power supply, and its internal CPU turns on the data receiving switch to start timing and detecting data. At the same time, press the send button of the handheld programmer within 2 seconds of the LED power supply being powered on.

[0019] If the LED power supply does not receive valid data for more than 2 seconds, the data switch will be turned off, the LED power supply will enter the normal lighting mode, and accept external dimming control.

[0020] If the LED power supply receives valid data, it will raise or lower the level of the dimming light, causing the indicator light connected to the dimming light inside the handheld programmer to cycle on and off to provide feedback on the receiving and sending status to the user.

[0021] The system includes an external handheld data transmission host, a two-core signal line for programming and dimming, and one or more slaves (i.e., LED power supplies) with two-core signals in parallel. When the system performs programming operations, all LED power supplies are powered on first, and the CPU inside the power supply starts timing. The handheld host needs to press a button within 2 seconds to send programming data. If the CPU inside the power supply does not receive valid data for more than 2 seconds, it will turn off the data receiving switch and enter the normal lighting and dimming mode to prevent the data receiving port from absorbing the signal on the dimming line and affecting the normal lighting control. If valid data is received within 2 seconds, the CPU inside the power supply controls the data receiving port to change from the original input mode to the output mode to send high and low levels, and the high level delays for 1 second and then the low level delays for 1 second for 3 cycles. Since the indicator light inside the handheld data transmission host is connected to the data line, it can also follow the flashing cycle 3 times accordingly, so as to achieve the purpose of feedback to the user whether the data transmission and reception are successful or not.

[0022] When the user operates, first power on all LED power supplies 20, and the receiving CPU unit 201 turns on the data receiving switch S8050 and starts timing. If no valid data is received on the dimming line within 2 seconds, the data switch tube S8050 is turned off to prevent the data port from affecting the external dimming control signal, and enter the normal lighting mode to accept external dimming control. If valid data is received within 2 seconds, the receiving CPU unit 201 immediately switches the internal port to the output mode and sends high and low levels to the dimming line, and repeats the cycle 3 times according to the rule of high level delay for 1 second and low level delay for another 1 second.

[0023] On the other hand, when the LED power supply 20 is powered on, the user should immediately press the button K on the handheld data sending host 10 to start the sending CPU unit 101 to send data, and observe the indicator light 102. If the data transmission and reception are normal, the high and low levels output by the CPU unit 201 inside the slave (LED power supply) 20 push the transistor NPN inside the handheld data sending host 10 to turn on and off, and the corresponding indicator light 102 flashes and turns off three times, thereby judging whether the operation is successful.

[0024] The handheld programmer is the host and only one is provided. The LED power supply is provided with one or more slaves. Data is sent to one or more slaves through one-way communication by a single host. After receiving the data, the slave pushes the indicator light in the host to turn on and off for 3 seconds to provide feedback to the user. All slaves do not need to set independent addresses. Human-computer interaction is achieved by programming the slaves individually or in batches synchronously. The two dimming lines in the LED power supply are multiplexed for data communication transmission. If no valid programming data is received 2 seconds after the LED power supply is powered on, the data switch is turned off, thereby disconnecting the connection between the data port and the dimming line to prevent the data port from affecting the dimming signal.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A one-way one-to-many communication LED power supply programming method with feedback mechanism, characterized in that: The method comprises the following steps: Power on the LED power supply, and its internal CPU turns on the data receiving switch to start timing and detecting data. At the same time, press the send button of the handheld programmer within 2 seconds of the LED power supply being powered on. If the LED power supply does not receive valid data for more than 2 seconds, the data switch will be turned off to prevent the CPU data port from affecting the external dimming signal, and the LED power supply will enter the normal lighting mode to accept external dimming control. If the LED power supply receives valid data, it will raise or lower the level of the dimming light, causing the indicator light connected to the dimming light inside the handheld programmer to cycle on and off to provide feedback on the receiving and sending status to the user.

2. A one-way one-to-many communication LED power supply programming method with feedback mechanism as claimed in claim 1, characterized in that: The handheld programmer is the host and there is only one, the LED power supply is the slave and there are several, a single host sends data to multiple slaves through one-way communication, after all the slaves receive the data, they simultaneously push the indicator light in the host to turn on and off for 3 seconds to give feedback to the user, thus solving the feedback problem existing in one-way communication.

3. A one-way one-to-many communication LED power programming method with feedback mechanism as claimed in claim 2, characterized in that: All slaves do not need to set independent addresses. Master-slave interaction can be achieved by programming the slaves individually or in batches, solving the signal conflict problem in two-way multi-machine communication.

4. A one-way one-to-many communication LED power programming method with feedback mechanism as claimed in claim 1, characterized in that: The two dimming lines in the LED power supply are multiplexed for data communication transmission function. If no valid programming data is received 2 seconds after the LED power supply is powered on, the data switch is turned off, thereby disconnecting the connection between the data port and the dimming line to prevent the CPU data port from affecting the dimming signal.

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