WO2020029790A1

WO2020029790A1 - Alternating sensing illumination system

Info

Publication number: WO2020029790A1
Application number: PCT/CN2019/097182
Authority: WO
Inventors: 宋刚
Original assignee: 广州悦可军玉光电科技有限公司
Priority date: 2018-08-07
Filing date: 2019-07-23
Publication date: 2020-02-13
Also published as: CN109121264A; CN109121264B

Abstract

An illumination system, comprising a sensing module and a control module, the sensing module being used for sensing a detection target and outputting a control signal according to a detection result, the control module being used for controlling sending of at least two illumination signals according to the control signal outputted by the sensing module. When the sensing module outputs a control signal, at least two illumination signals are emitted simultaneously, and when the sensing module does not output a control signal, at least one illumination signal is not outputted by the control module, and the combination of illumination signals is different from the combination of illumination signals on the previous occasion when the sensing module did not output a control signal.

Description

Alternating induction lighting system

This application claims priority from a Chinese patent application filed with the Chinese Patent Office on August 07, 2018, with application number 201810891855.6, and the invention name is "Alternating Induction Lighting System", the entire contents of which are incorporated herein by reference.

Technical field

The present invention relates to the field of lighting technology, and in particular, to a control circuit for a general electric light source.

Background technique

The automatic lighting of electric lights uses intelligent sensor switches, such as infrared sensors, or sound sensors.

Taking infrared as an example, the human body infrared intelligent sensor switch is a switch that is automatically activated when someone passes through the infrared sensor detection area. The main component of human body infrared induction switch is human body pyroelectric infrared sensor. The human body has a constant body temperature, generally at 37 degrees, so it emits infrared rays with a specific wavelength of about 10 μm. Passive infrared probes work by detecting about 10 μm of infrared rays emitted by the human body. About 10 μm of infrared light emitted by the human body is enhanced by a Fresnel filter and focused on an infrared sensing source. Infrared induction sources usually use pyroelectric components. When this component receives a change in the temperature of the human body's infrared radiation, it will lose its charge balance and release its charge. After subsequent detection and processing, the switching action can be triggered. If the person does not leave the sensing range, the switch will be continuously turned on; after the person leaves or there is no action in the sensing area for a long time, the switch will automatically delay closing the load. The sensing distance is 5-8 meters.

The range of sound induction is often narrower, because a larger decibel sound is required to activate the induction switch. If a lower threshold is set, although the range of the inductive switch will increase, it will also be activated by voices such as conversation, causing unnecessary waste, so the range of sound sensing is often narrower.

In applications such as surveillance video recorders, underground parking lots, if only the electric lights controlled by the smart sensor switch are used, the sensing range cannot meet the demand. Therefore, an improvement scheme has appeared. In addition to the electric lights controlled by the smart sensor switch, There are always-on electric lights to provide lower brightness, in order to provide lower-level lighting for applications such as surveillance video recorders, underground parking lots, etc., and supplemented with induction switches to provide sufficient lighting when the induction switches are triggered.

The disadvantage of the above technical solution is that the service life of the electric lamp controlled by the inductive switch and the electric lamp that is always on is reduced due to the use situation. The electric lamp controlled by the induction switch may reduce the service life due to frequent switching between on and off states, while the light that is always on may reduce the service life due to non-stop operation.

Summary of the invention

In order to solve the aforementioned technical problem, the present invention discloses the following technical solution, the function of which is to switch the controlled electric lamp between two working modes controlled by an inductive switch and always on, thereby improving the life of the electric lamp.

Specifically, a lighting system includes: a sensing module for sensing a detection target and outputting a control signal according to the detection result; a control module for controlling the sending of at least two lighting signals according to a control signal output from the sensing module ; The lighting signal is issued in accordance with the following rules: when the sensing module outputs a control signal, at least two of the lighting signals are simultaneously issued; when the sensing module does not output a control signal, the lighting signal has at least One is not output by the control module, and the arrangement of the outputted several lighting signals is different from the arrangement of the plurality of lighting signals output when the sensing module did not output a control signal last time.

Specifically, the control module includes a microprogram controller for receiving a control signal output by the induction module through its input terminal, and outputting the lighting signal through its output terminal; it also includes a memory for storing the microcomputer. The program controller controls a program of the lighting signal according to a control signal output by the induction module.

More specifically, the sensing module is an infrared sensing module or a microwave sensing module.

In order to further save energy, an environment sensing module is provided for sending a brightness signal to the control module according to the light intensity of the detected environment. More specifically, the appliance for detecting the intensity of ambient light includes a photoresistor; the appliance for detecting the intensity of ambient light is placed within a detection range of the sensing module.

More specifically, the connection on the hardware should comply with the following rules: each control signal of the sensing module controls the transmission of at least two lighting signals; further, the controlled lighting signals are not repeated.

The specific and necessary control steps are as follows:

Step 1: emit at least one of the at least two illumination signals, and prevent at least one of the illumination signals from being emitted;

Step 2: Monitor the port through which the sensing module transmits the control signal, and when the sensing module outputs the control signal, proceed to step 3.

Step 3: Turn off at least one of the lighting signals issued in Step 1, and cause at least one of the lighting signals not sent in Step 1 to emit a lighting signal.

Still further, the second step includes: when the sensing module never outputs the control signal to output the control signal, emitting at least two of the at least two lighting signals.

When considering the environmental sensing module, the specific and necessary control steps are as follows:

Step 1: Monitor the port through which the environment sensing module transmits the brightness signal, and when the environment sensing module sends out the brightness signal, proceed to step two; otherwise, keep at least two of the lighting signals from being sent out;

Step 2: sending out at least one of the at least two lighting signals, and preventing at least one of the lighting signals from being sent out;

Step three: monitoring the port through which the control module transmits the control signal, and when the control module outputs the control signal, proceed to step four;

Step 4: Turn off at least one of the lighting signals issued in Step 1, and cause at least one of the lighting signals not sent in Step 1 to emit a lighting signal.

Still further, the third step includes: when the sensing module never outputs the control signal and changes to output the control signal, emitting at least two of the at least two lighting signals.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 shows the circuit diagram of the infrared induction lamp published on the Internet before the filing date.

Figure 2 shows the pin definition of the BISS0001 chip.

FIG. 3 shows a circuit diagram of a specific embodiment.

Figure 4 shows the pin definition of the EM78P173N chip in the specific embodiment.

FIG. 5 shows a flowchart of a single-chip microcomputer embedded program in a specific embodiment.

FIG. 6 shows the relationship between the control signal, the first illumination signal, and the second illumination signal of the infrared sensing module when a group of illumination signals includes only two illumination signals in a specific embodiment.

Among them, IC1 is a microcontroller; IC2 is an inductive module control chip; K1 is a relay; R1 is a CDS photoresistor.

detailed description

To facilitate the description of the technical solution of the present invention, specific embodiments are described using a technical solution that is relatively close to the prior art shown in FIG. 1.

In the prior art, a circuit diagram of one of the induction modules is shown in FIG. 1. Control signal output terminal of the induction module-it is also the control signal output terminal of the BISS0001 chip. The output signal is directly transmitted to the relay, which controls a lighting appliance, such as the on and off of an electric lamp, by controlling the on and off of the relay. As described in the background art. In Figure 1, PIR is an infrared sensor, and the sensing module is an infrared sensing module.

The above-mentioned sensing module can be replaced with a suitable sensing module in the prior art.

Compared with the prior art shown in FIG. 1, the specific embodiment is different in that a control signal output terminal of the infrared sensing module outputs a control signal of the infrared sensing module to a lighting system control module. As shown in FIG. 3, the lighting system control module in the specific embodiment uses a single-chip microcomputer IC1—the specific embodiment takes EM78P173N as an example—and related circuits as examples to explain the technical solution disclosed in the present invention. The P60 input terminal of the single-chip microcomputer IC1 receives the control signal output from the control signal output terminal of the induction module control chip IC2 (a BISS0001 chip is taken as an example in the specific embodiment), and generates a first lighting signal according to the method shown in FIG. 4 And the second lighting signal are output to the first relay and the second relay through the ports P61 and P62, respectively, and the first lighting appliance and the second lighting appliance are controlled by controlling the on and off of the first relay and the second relay. The first relay and the second relay are not marked in the drawings. Those skilled in the art should understand and implement the technical solutions disclosed in the present invention through the foregoing description.

The single-chip microcomputer IC1 in the embodiment may also be replaced with other types of single-chip microcomputers, or may be replaced with MCUs, PLCs, and the like, and according to the instructions of these MCUs, PLCs, etc., the electrical connection with the induction module and lighting appliances, plus the description of the present invention With reference to the flowchart shown in FIG. 5, an applicable program is formulated to achieve the object of the invention.

In this specific embodiment, if there is a user within the detection range of the sensor of the infrared sensing module, the sensor will be triggered, so that the infrared sensing module sends a control signal showing a high level; if there is no user in the detection range, the infrared sensing module A low-level signal will be issued, that is, the control signal is not issued. Depending on the needs, through appropriate settings, the sensing module can also send a control signal that appears as a low level; if the control signal appears as a low level, correspondingly, when a high level signal is sent, the control signal is not sent.

In this embodiment, the pins of the dual-function definition of P65 / OSCI, P64 / OSCO, P63 / RST, P62 / TCC, and P60 / INT of the single-chip microcomputer IC1 all use the definition of the I / O function. P65 and P64 are grounded through a switch. Because the single-chip microcomputer IC1 in the embodiment is internally set high, therefore, when the ground switch of P65 is turned off, P65 appears as a high level. Same for P64. When a person skilled in the art implements the technical solution disclosed in the present invention, it is not necessary to use a single-chip microcomputer with an internal height, and a corresponding hardware circuit may also be set so that the single-chip microcomputer IC1 can distinguish a required working mode.

The P63 terminal of the one-chip computer IC1 is grounded through the photoresistor R1; the other end of the photoresistor R1 is connected to VCC. Place the photoresistor R1 in an appropriate position so that the photoresistor R1 can reflect the ambient brightness. When the ambient brightness is high, the resistance of the photoresistor R1 decreases and the P63 terminal receives a low-level signal. When the ambient brightness is low, the photoresistor R1 has a high resistance and P63 receives a high-level signal.

In this embodiment, the photoresistor uses a CDS photoresistor, and those skilled in the art can implement the functions of the technical solution disclosed by the present invention by replacing other types of photoresistors.

As shown in Figure 5, the embedded program of the single-chip microcomputer IC1 generates the first lighting signal and the second lighting signal according to the signal of the input terminal of the P60, that is, the control signal of the infrared sensing module. The specific working steps are as follows:

S1: Determine the working mode by receiving the signals of P64 and P65. If the signals of P64 and P65 are set to the alternate sensing mode, step S2 is performed.

S2: Read the input signal of P63. If the input signal of P63 is low level, it means that the ambient brightness is sufficient and no lighting equipment is needed. Therefore, P64 and P65 neither send the first lighting signal nor the second lighting signal. If the signal input by P63 is high, it means that the ambient brightness is not sufficient and the lighting equipment needs to be started. At this time, the process goes to step S3.

S3: P61 terminal sends the first lighting signal, P62 terminal does not send the second lighting signal, and monitors P60 terminal.

S4: Receive the control signal from the control module IC2 of the induction module through the P60 terminal. If a control signal is received, go to step S5, otherwise skip to step S1.

S5: The first lighting signal is sent through the P61 terminal, and the second lighting signal is sent through the P62 terminal.

S6: Delay. In this example, it is 30 seconds. After a delay of 30 seconds, the process proceeds to step S7.

S7: The first lighting signal is not sent at the P61 terminal, and the second lighting signal is sent at the P62 terminal.

S8: Read the input signal of P63. If the input signal of P63 is low level, make P64 and P65 send neither the first lighting signal nor the second lighting signal, and go to step S1; if the input of P63 is If the signal is high, go to step S9 and monitor P60.

S9: Via the P60 terminal, the control signal from the control module IC2 of the induction module is received. If a control signal is received, the process proceeds to step S10, otherwise the process proceeds to step S8.

S10: The first lighting signal is sent through the P61 terminal, and the second lighting signal is sent through the P62 terminal.

S11: Delay. In this example, it is 30 seconds. After a delay of 30 seconds, the process proceeds to step S12.

S12: The P61 terminal sends a first lighting signal, and the P62 terminal does not send a second lighting signal. And jump to step S2. It can also be replaced by jumping to step S1.

It can be seen from the above working steps that each time the control module IC2 of the induction module does not issue a control signal, the arrangement of the lighting signals output by P61 and P62 is different from when the control signal was not issued last time. When the infrared sensor module does not send a control signal for the first time, P61 sends, P62 does not send; when the second time does not send a control signal, P61 does not send, P62 sends; when the third time does not send a control signal, the arrangement of the lighting signal and the first Once the same, when the control signal is not issued for the fourth time, the arrangement of the illumination signal is the same as the second time. And so on.

According to the solution disclosed above, one control signal can be used to control three lighting signals, so that three lighting appliances work alternately, instead of the case where two lighting appliances work alternately in the above example. First, replace the single-chip microcomputer IC1 with a single-chip microcomputer or PLC that allows more I / O ports. Then, steps S3, S7, and S10 are changed to, respectively, S3: send the first lighting signal, do not send the second lighting signal, do not send Third lighting signal; S7: Do not send a first lighting signal, send a second lighting signal, do not send a third lighting signal; S10: Do not send a first lighting signal, do not send a second lighting signal, send a third lighting signal. For other working steps, make corresponding adjustments or add corresponding steps according to the embodiments disclosed above.

When it is replaced with three control signals, the following situations are also in accordance with the technical solution disclosed in the present invention, and achieve the purpose of the invention, and obtain technical effects. Steps S3, S7, and S10 are changed to: S3: Send a first lighting signal, send a second lighting signal, and not send a third lighting signal; S7: Do not send a first lighting signal, send a second lighting signal, and send a third lighting Signal; S10: send out the first lighting signal, not send out the second lighting signal, send out the third lighting signal.

Related work processes can also be adjusted. For example: set a variable that records the number of times the control module sends out the control module. When the sensor module never sends a control signal to a control signal, increase this variable by one. The workflow changes are:

S1: Initialization. This step includes setting the variable i, which records the number of times the control module sends out the control module, to zero.

S2: Read the input signal of P63. If the signal input by P63 is low level, neither P61 or P62 will send out the lighting signal, and then repeat this step; if the signal input by P63 is high level, go to step S3.

S3: If i is divisible by 2, the P61 terminal sends a first lighting signal, P62 does not send a second lighting signal; if i is not divisible by 2, the P61 terminal does not send a first lighting signal, and P62 sends a second Lighting signal. If a set of lighting signals is set to include three, then 3 is used instead of 2; if it includes four, then 4 is used to replace 2.

S4: Receive the control signal from the infrared sensing module through the P60 terminal. If a control signal is received, go to step S5, otherwise skip to step S2.

S6: Delay. In this example, it is 30 seconds. After a delay of 30 seconds, skip to step S2.

In this embodiment, when the first lighting signal or the second lighting signal is at a high level, and the P61 or P62 port sends a low level signal, the first lighting signal or the second lighting signal is not sent. Should be combined with the circuit needs of lighting appliances, choose the signal representation.

It can be seen from FIG. 6 that in the specific embodiment, the timings of the first lighting signal and the second lighting signal that are inconvenient to maintain are all three. In the prior art introduced in the background, one of the lighting signals is only based on the sensing module. The control signal of the control chip IC2 changes. When the same timing is maintained more, the lighting appliances controlled by this one lighting signal will not be frequently switched and affect the life. In addition, after working for a period of time, each lighting appliance is given a chance to rest, to avoid affecting the life because of continuous working hours. As for the user, as long as there is no qualitative difference between the first lighting device and the second lighting device, the lighting function is the same in use.

In the above specific embodiment, in addition to the infrared sensing signal method described in the embodiment, the sensing module may also be manufactured by a sound sensor or the like, as long as its function is to detect whether someone enters its detection range and send a control signal accordingly. The technical solution disclosed in the present invention can be implemented to solve technical problems.

The sensing module in the embodiment may also be implemented by a microwave sensor. Replace the infrared sensor PIR connected to the BISS0001 chip IC2 with a microwave sensor as shown in the circuit diagram of FIG. 3.

When the single-chip microcomputer IC1 receives the low-level signal of P63, P61 and P62 do not output the lighting signal, and both the first lighting device and the second lighting device are turned off, thereby reducing the use of unnecessary lighting devices. In other words, the environmental detection signal input at the P63 terminal can generate the function of the shielding control module sending the first lighting signal and the second lighting signal according to the control signal sent by the infrared sensing module input in the P60.

For the convenience of description, in the above specific embodiment, a relatively simple one is used, and only one set of lighting signals, each group includes only two lighting signals of a first lighting signal and a second lighting signal, and receives the control signal of an infrared sensor module. Happening.

In an actual application process, the control signal of the control module IC2 of the sensing module may be multiple, and each control module controls the control signal of the IC2 chip, corresponding to a group of lighting signals. A group of lighting signals corresponds to two or more lighting signals.

Claims

A lighting system, comprising:

A sensing module for sensing a detection target and outputting a control signal according to the detection result;

A control module, configured to control the sending of at least two lighting signals according to a control signal output by the induction module;

The said lighting signal shall be issued in accordance with the following rules:

When the sensing module outputs a control signal, at least two of the lighting signals are simultaneously issued;

When the sensing module does not output a control signal, at least one of the lighting signals is not output by the control module, and the arrangement of the output of the plurality of lighting signals is the same as the last time that the sensing module did not output a control signal. The arrangement of several of the illumination signals output at different times is different.
The lighting system according to claim 1, wherein the control module,

Including a microprogram controller for receiving a control signal output by the induction module through its input terminal and outputting the lighting signal through its output terminal;

It includes a memory for storing a program of the microprogram controller that controls the lighting signal according to a control signal output by the induction module.
The lighting system according to claim 1, wherein the sensing module comprises an infrared sensing module and a microwave sensing module.
The lighting system according to claim 1, further comprising an environment sensing module for sending a brightness signal to the control module according to the light intensity of the detected environment.
The lighting system of claim 4, wherein the means for detecting the intensity of ambient light comprises a photoresistor.
The lighting system according to claim 5, wherein the device for detecting ambient light intensity is placed within a detection range of the sensing module.
The lighting system according to claim 1, wherein each control signal of the sensing module controls transmission of at least two lighting signals.
The lighting system according to claim 7, wherein the control module has different control signals, and the controlled lighting signals are not repeated.
A method for controlling a lighting system according to claim 1, comprising the following steps:

Step 1: emit at least one of the at least two illumination signals, and prevent at least one of the illumination signals from being emitted;

Step 2: monitor the port through which the sensing module transmits the control signal, and when the sensing module converts from outputting the control signal to not outputting the control signal, proceed to step 3.

Step 3: Turn off at least one of the lighting signals issued in the step 1, and cause at least one of the lighting signals not sent in the step 1 to emit a lighting signal.
The method according to claim 9, wherein the second step comprises: when the sensing module never outputs the control signal and changes to output the control signal, sending out one of the at least two illumination signals. At least two.
A method for controlling a lighting system according to claim 4, comprising the following steps:

Step 1: Monitor the port through which the environment sensing module transmits the brightness signal, and when the environment sensing module sends out the brightness signal, proceed to step two; otherwise, keep at least two of the lighting signals from being sent out;

Step 2: sending out at least one of the at least two lighting signals, and preventing at least one of the lighting signals from being sent out;

Step 3: monitoring the port through which the control module transmits the control signal, and when the control module outputs the control signal, proceed to step 4;

Step 4: Turn off at least one of the lighting signals issued in the step 1, and cause at least one of the lighting signals not sent in the step 1 to emit a lighting signal.
The method according to claim 11, wherein the step three comprises: when the sensing module never outputs the control signal and changes to output the control signal, emitting one of the at least two illumination signals. At least two.