Status indicator circuit for flip-up lamps and operating room shadowless lamps

Abstract

This utility model relates to a status indication circuit for a flip-up lamp and a shadowless operating room lamp. The status indication circuit includes: an infrared emitter installed at a preset position outside the lamp to emit infrared signals; an infrared sensing module installed on the front of the lamp to receive the infrared signals; an ambient brightness detection module to detect the brightness information of the environment in which the lamp is located; a signal processing module to receive the infrared signals and brightness information respectively; a flip indicator light to indicate the flip-up status of the lamp; and an ambient dimness indicator light to indicate that the environment in which the lamp is located is too dark. After the lamp flips, this utility model automatically activates the flip indicator light by detecting changes in infrared energy as a visual reminder of the working status. If the ambient light is dim, the ambient dimness indicator light is automatically activated as a supplementary reminder in nighttime or dimly lit environments.

Description

Technical Field

[0001] This utility model relates to the field of lighting control circuit technology, specifically to a status indicator circuit for a flip-up lamp and a shadowless operating room lamp. Background Technology

[0002] Currently, with the development of lighting technology, auxiliary light sources are increasingly being introduced into lighting systems. For example, in addition to the main lighting source, various auxiliary light sources emitting different colors are designed. In medical settings, different colored ambient lights can meet the different work and psychological needs of patients and medical staff. However, in existing lighting systems, the main lighting source and auxiliary light sources are usually controlled and operate independently, lacking status indicator circuits for different light sources. This makes it inconvenient to quickly identify the operating status of different light sources, hindering the use and maintenance of the lighting system.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model discloses a status indicator circuit for a flip-up lamp and a shadowless operating room lamp.

[0005] The technical solution adopted in this embodiment of the utility model is as follows: A status indication circuit for a flip-up lamp includes: An infrared emitter is installed at a predetermined position on the outside of the flip-up lamp to emit infrared signals; An infrared sensing module is installed on the front of the flip-up lamp and is used to receive infrared signals emitted by an infrared emitter. An ambient brightness detection module is used to detect the brightness information of the environment in which the flip-up lamp is located. The signal processing module is equipped with multiple input terminals to receive infrared signals and brightness information emitted by the infrared sensing module and the ambient brightness detection module, respectively. A flip indicator light, which is controlled to be turned on or off by a signal processing module, indicates the flip state of the flip-able lamp. An ambient dimness indicator light, which is controlled to be turned on or off by a signal processing module, is used to indicate the ambient brightness status of the flip-up lamp.

[0006] A further technical solution is that the status indication circuit further includes: An angle detection module, which is used to detect the angle information of the flip-up lamp; The control module is used to determine whether the flip-up lamp has been flipped to a preset angle based on the angle information and brightness information, and to control the activation of the main lighting source or the ambient lighting source on the back of the flip-up lamp.

[0007] A further technical solution is that the signal processing module includes a signal processing chip with model number BISS0001. The 1IN+ pin of the signal processing chip is coupled to the output terminal of the infrared sensing module, the VO pin is coupled to the flip indicator light, and the VC pin of the signal processing chip is coupled to the input terminal of the ambient brightness detection module.

[0008] A further technical solution is that the status indication circuit includes a first LED as a flip indicator light; wherein, A second resistor, a first transistor, and a fourth resistor are provided between the VO pin of the signal processing chip and the negative terminal of the first LED. The positive terminal of the first LED is grounded, and the negative terminal is connected to the first end of the second resistor. The second end of the second resistor is connected to the collector of the first transistor. The base of the first transistor is connected to the first end of the fourth resistor, and the source is grounded. The second end of the fourth resistor is connected to the VO pin of the signal processing chip.

[0009] A further technical solution is that the status indication circuit includes a third LED as an ambient dimness indicator, and the ambient brightness detection module is implemented using a tenth resistor, which is a photoresistor; wherein, The first end of the tenth resistor is connected to the positive terminal of the third LED, and the negative terminal of the third LED is grounded.

[0010] A further technical solution is that the first transistor is an NPN transistor with the model number 2SC3356-T1B-A.

[0011] A further technical solution is that a relay circuit is configured on pin A of the signal processing chip. The relay circuit includes a second diode and a signal relay of model RL_HJR-3FF-S-ZF / 24VDC. Pin 2 of the signal relay is connected to the +24V DC power supply and the negative terminal of the second diode, and pin 5 is connected to the positive terminal of the second diode; pin 1 is the common terminal of the output contact and is connected to pin A; pin 3 is a normally open contact and grounded, and pin 4 is a normally closed contact and is connected to the +3.3V DC power supply and pin 1.

[0012] A further technical solution is that the ambient brightness detection module, the signal processing module, and the flip indicator light are all installed on the housing of the flip-up lamp.

[0013] An operating room shadowless lamp includes a controller, an angle detection module, a shadowless lamp light source, a first ambient light module and a second ambient light module, and a status indication circuit for the flip-up lamp. The angle detection module is used to collect the angle information of the lamp and send it to the controller. The controller drives the shadowless lamp light source or the corresponding ambient light module to turn on according to the received angle information of the lamp. The signal processing module in the status indication circuit is connected to the controller.

[0014] A further technical solution is that the angle detection module includes an MPU6050 angle sensor and its peripheral circuits. The SDA and SCL pins of the angle sensor are used to output the detected angle information of the lamp. The controller is implemented using an STM32F103C8T6 microcontroller. The PB6 pin is connected to the SCL pin of the angle sensor, the PB7 pin is connected to the SDA pin of the angle sensor, the PA2 pin is coupled to the first ambient light module, and the PA3 pin is coupled to the second ambient light module.

[0015] The beneficial effects of this utility model embodiment are as follows: The status indication circuit of the flip-up lamp proposed in this utility model can automatically sense and prompt the usage posture of the flip-up lamp. Through the infrared sensing circuit combined with the infrared emitter, when the lamp is flipped, the change in infrared energy is detected, the flip control signal is output, and the flip indicator light is automatically turned on as a visual reminder of the working status or flipping status. If the ambient light is dim, the ambient light dim indicator light is automatically turned on as a supplementary reminder in the night or dim environment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the status indication circuit of the flip-up lamp proposed in Embodiment 1 of this utility model.

[0017] Figure 2 This is a schematic diagram of a status indication circuit example of a flip-up lamp proposed in Embodiment 2 of this utility model.

[0018] Figure 3 This is a schematic diagram of the operating room shadowless lamp with its front facing down, as proposed in Embodiment 3 of this utility model.

[0019] Figure 4 This is a schematic diagram of the back of the operating room shadowless lamp proposed in Embodiment 3 of this utility model, with the back facing down.

[0020] Figure 5 This is a schematic diagram of the lighting control of the operating room shadowless lamp proposed in Embodiment 3 of this utility model.

[0021] Figure 6 This is a circuit diagram of an example of the angle detection module in Embodiment 3 of this utility model.

[0022] Figure 7 This is a partial circuit diagram of the controller example in Embodiment 3 of this utility model.

[0023] Among them, 100 is the back of the operating room shadowless lamp; 101 is the front of the operating room shadowless lamp. Detailed Implementation

[0024] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the device proposed by this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer according to the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, only used to conveniently and clearly assist in illustrating the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0026] Example 1 Figure 1 This is a schematic diagram of the status indication circuit for the flip-up lamp proposed in Embodiment 1 of this utility model. Figure 1 As shown, the status indication circuit of the flip-up lamp includes: an infrared emitter, an infrared sensing module, an ambient brightness detection module, a signal processing module, a flip indicator light, and an ambient dimness indicator light. The infrared emitter is installed on the ceiling or other location above the lamp and emits infrared signals using a low-frequency flashing pattern (e.g., 0.5~1Hz) to simulate a moving infrared source, ensuring the infrared sensing module can detect changes in infrared energy. In this embodiment, the flip-up lamp preferably has a main lighting source on its front side. Before flipping, the lamp is initially facing down, powered by the main lighting source. An auxiliary lighting source can be optionally installed on the back or side of the lamp, depending on the needs. If an auxiliary lighting source is installed on the back or side of the lamp, the lamp flips to face down when the auxiliary lighting source on the back is working. The number of infrared emitters is not limited to one; multiple sources can be used, facing different angles of the lamp's flip.

[0027] like Figure 1As shown, in this embodiment, except for the infrared emitter, all other modules are mounted on the lamp housing. The infrared sensing module is mounted on the front of the lamp and is used to receive the infrared signal emitted by the infrared emitter and detect changes in infrared energy within the sensing area when the front of the lamp is flipped to face the infrared emitter. The ambient brightness detection module is used to detect the brightness information of the environment in which the lamp is located. The signal processing module has multiple input terminals to receive the infrared signals and brightness information emitted by the infrared sensing module and the ambient brightness detection module, respectively.

[0028] like Figure 1 As shown, in this embodiment, the ambient brightness detection module is used to detect the brightness information of the environment in which the flip-up lamp is located. The signal processing module has multiple input terminals to receive infrared signals and brightness information emitted by the infrared sensing module and the ambient brightness detection module, respectively. The flip indicator light is controlled to turn on or off by the signal processing module to indicate the flip-up state of the lamp. The ambient dimness indicator light is also controlled to turn on or off by the signal processing module to indicate the ambient brightness status of the environment in which the flip-up lamp is located, and to indicate that the environment is too dark.

[0029] When the status indication circuit of the flip-up lamp in this embodiment is working, if the lamp is in its normal operating position and the infrared sensing module is facing downwards, there is no infrared emission source in the sensing area, and no sensing output will be triggered. When the lamp is flipped to face the infrared emission source, the signal processing module receives the infrared signal sensed by the infrared sensing module and then sends a flip-up indicator control signal to the drive flip-up indicator. The flip-up indicator lights up, indicating that the lamp has successfully flipped. When the signal processing module receives a brightness detection signal from the ambient brightness detection module that is lower than a preset value, it sends a light-on signal to the ambient dimness indicator. The ambient dimness indicator lights up, indicating that the environment in which the lamp is located is too dark, thus providing supplementary information at night or in dim environments. In specific implementations, graphic or text labels corresponding to the light source can be added to the outside of the indicator.

[0030] Furthermore, the status indication circuit in this embodiment may also include an angle detection module and a control module. The angle detection module is used to detect the angle information of the flip-up lamp. The control module is used to determine whether the flip-up lamp has been flipped to a preset angle based on the angle information and brightness information, and to control the activation of the main lighting source or the ambient lighting source on the back of the flip-up lamp.

[0031] Example 2 Figure 2 This is a schematic diagram of a status indication circuit example for a flip-up lamp proposed in Embodiment 2 of this utility model. Figure 2As shown, this embodiment is based on the state indication circuit design of the reversible lamp proposed in the first embodiment, and the signal processing module includes a signal processing chip U1 of model BISS0001 and its peripheral circuits. BISS0001 is a dedicated sensor signal processing chip that can perform processing such as amplification, filtering and judgment on the input signal to trigger the output of a control signal. Specifically, the 1IN+ pin of the signal processing chip U1 is coupled to the output end of the infrared sensing module, and the VO pin is coupled to the reversible indicator light.

[0032] Specifically, as shown in Figure 2 , in this embodiment, a second resistor R2, a first transistor Q1 and a fourth resistor R4 are arranged between the VO pin of the signal processing chip U1 and the negative electrode of the first LED lamp D1. Specifically, the positive electrode of the first LED lamp D1 is grounded, the negative electrode is connected to the first end of the second resistor R2, the second end of the second resistor R2 is connected to the collector of the first transistor Q1, the base of the first transistor Q1 is connected to the first end of the fourth resistor R4, the source electrode is grounded, and the second end of the fourth resistor R4 is connected to the VO pin of the signal processing chip U1.

[0033] Further, as shown in Figure 2 , in this embodiment, the VC pin of the signal processing chip U1 is coupled to the input end of the ambient brightness detection module. Specifically, as shown in Figure 2 , in this embodiment, the reversible indicator light is implemented by a green third LED lamp D3, the ambient brightness detection module is implemented by a tenth resistor R10, and the tenth resistor R10 is a photoresistor. The first end of the tenth resistor R10 is connected to the positive electrode of the third LED lamp D3. The negative electrode of the third LED lamp D3 is grounded. The VC pin is the trigger inhibition terminal of the signal processing chip U1, triggering is inhibited when VC<VR; triggering is allowed when VC>VR. VR≈0.2VDD. In this embodiment, the trigger inhibition terminal is used as the input end of the ambient brightness detection signal, which has the advantage of simplifying the circuit. Once an external trigger signal is detected, the trigger immediately enters the inhibition state without waiting for the rising edge of the clock or the counter to match, which can minimize the delay from the input signal to the output response and improve the response speed of the circuit.

[0034] Further, as shown in Figure 2As shown, in this embodiment, pin A of the signal processing chip U1 is designated as both a repeatable and non-repeatable triggering terminal. Pin A incorporates a relay circuit, including a second diode D2 and a signal relay K1 (model RL_HJR-3FF-S-ZF / 24VDC). Pin 2 of the signal relay K1 is connected to the +24V DC power supply and the negative terminal of the second diode D2, while pin 5 is connected to the positive terminal of the second diode D2. Pin 1 is the common terminal of the output contacts, connected to pin A. Pin 3 is a normally open contact, grounded, and pin 4 is a normally closed contact, connected to the +3.3V DC power supply and pin 1. When pin A receives a high level, repeatable triggering is allowed; when pin A receives a low level, repeatable triggering is not allowed. This embodiment uses a relay circuit as a triggering circuit on pin A of the signal processing chip U1. This design is small in size and low in cost, requiring no complex drive circuits or dedicated protection components, and can achieve reliable triggering functionality within a small circuit space.

[0035] Furthermore, in this embodiment, the first transistor Q1 is an NPN transistor of model 2SC3356-T1B-A. When a change in infrared energy is detected, the signal processing chip U1 outputs a high-potential signal, which is amplified by the first transistor Q1 and drives the first LED D1 and the signal relay K1. If the voltage divider of the tenth resistor R10 detects that the ambient light is dim, the third LED D3 is activated.

[0036] Example 3 Modern operating room lighting systems increasingly incorporate auxiliary light sources, such as ambient lights emitting different colors of light, to meet the diverse needs of patients and medical staff. However, in existing operating room lighting systems, the shadowless lamp and ambient light are typically controlled and operate independently, and lack status indicator circuits for light operation, resulting in a low level of automation. Therefore, based on Embodiments 1 and 2, this embodiment proposes an operating room shadowless lamp capable of automatically sensing and indicating the operating status of the lights. Figure 3 This is a schematic diagram of the operating room shadowless lamp with its front facing down, as proposed in Embodiment 3 of this utility model. Figure 4 This is a schematic diagram of the operating room shadowless lamp with its back facing down, as proposed in Embodiment 3 of this utility model. Figure 3 , Figure 4 As shown, the operating room shadowless lamp proposed in this embodiment is a flip-up lamp. As the lamp flips at different angles, it can drive the lamp to turn on the main lighting source or auxiliary light sources in different positions.

[0037] Figure 5 This is a schematic diagram of the lighting control for the operating room shadowless lamp proposed in Embodiment 3 of this utility model. Figure 5As shown, the operating room shadowless lamp in this embodiment includes: a controller, an angle detection module, a shadowless lamp light source, a first ambient light module and a second ambient light module, and a status indication circuit as in Embodiment 1 or Embodiment 2. The angle detection module is used to collect the angle information of the lamp and send it to the controller. The controller drives the shadowless lamp light source or the corresponding ambient light module to turn on according to the received angle information of the lamp. The signal processing module in the status indication circuit is connected to the controller. For example, reliable communication with BISS0001 can be realized on STM32F103C8T6 to meet common needs such as reading and storing detection data.

[0038] Furthermore, Figure 6 This is a circuit diagram of an example of the angle detection module in Embodiment 3 of this utility model. Figure 6 As shown, in this embodiment, the angle detection module includes an angle sensor U2 (model MPU6050) and its peripheral circuitry. The SDA and SCL pins of the angle sensor U2 are used to output the detected angle information of the lamp.

[0039] Furthermore, Figure 7 This is a partial circuit diagram of a controller example in Embodiment 3 of this utility model. For example... Figure 7 As shown, the controller is implemented using a single-chip microcomputer U3 of model STM32F103C8T6. Its PB6 pin is connected to the SCL pin of the angle sensor, the PB7 pin is connected to the SDA pin of the angle sensor, the PA2 pin is coupled to the first ambient light module, and the PA3 pin is coupled to the second ambient light module, controlling the opening or closing of the ambient light module.

[0040] The operating room shadowless lamp in this embodiment is equipped with a status indication circuit as in Embodiment 1 or Embodiment 2, which enables it to automatically sense its own flipping state and the brightness of the surrounding environment.

[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A status indication circuit for a flip-up lamp, characterized in that, include: An infrared emitter is installed at a predetermined position on the outside of the flip-up lamp to emit infrared signals; An infrared sensing module is installed on the front of the flip-up lamp and is used to receive infrared signals emitted by an infrared emitter. An ambient brightness detection module is used to detect the brightness information of the environment in which the flip-up lamp is located. The signal processing module is equipped with multiple input terminals to receive infrared signals and brightness information emitted by the infrared sensing module and the ambient brightness detection module, respectively. A flip indicator light, which is controlled to be turned on or off by a signal processing module, indicates the flip state of the flip-able lamp. An ambient dimness indicator light, which is controlled to be turned on or off by a signal processing module, is used to indicate the ambient brightness status of the flip-up lamp.

2. The status indication circuit for a flip-up lamp as described in claim 1, characterized in that: The status indication circuit also includes: An angle detection module, which is used to detect the angle information of the flip-up lamp; The control module is used to determine whether the flip-up lamp has been flipped to a preset angle based on the angle information and brightness information, and to control the activation of the main lighting source or the ambient lighting source on the back of the flip-up lamp.

3. The status indication circuit for a flip-up lamp as described in claim 1, characterized in that: The signal processing module includes a signal processing chip (U1) with model number BISS0001. The 1IN+ pin of the signal processing chip (U1) is coupled to the output terminal of the infrared sensing module, the VO pin is coupled to the flip indicator light, and the VC pin of the signal processing chip (U1) is coupled to the input terminal of the ambient brightness detection module.

4. The status indication circuit for a flip-up lamp as described in claim 3, characterized in that: The status indication circuit includes a first LED (D1) serving as a flip indicator; wherein... A second resistor (R2), a first transistor (Q1), and a fourth resistor (R4) are provided between the VO pin of the signal processing chip (U1) and the negative terminal of the first LED (D1). The positive terminal of the first LED (D1) is grounded, and the negative terminal is connected to the first end of the second resistor (R2). The second end of the second resistor (R2) is connected to the collector of the first transistor (Q1). The base of the first transistor (Q1) is connected to the first end of the fourth resistor (R4), and the source is grounded. The second end of the fourth resistor (R4) is connected to the VO pin of the signal processing chip (U1).

5. The status indication circuit for a flip-up lamp as described in claim 3, characterized in that: The status indication circuit includes a third LED (D3) as an ambient dimness indicator. The ambient brightness detection module is implemented using a tenth resistor (R10), which is a photoresistor. The first end of the tenth resistor (R10) is connected to the positive terminal of the third LED (D3), and the negative terminal of the third LED (D3) is grounded.

6. The status indication circuit for a flip-up lamp as described in claim 4, characterized in that: The first transistor (Q1) is an NPN transistor with model number 2SC3356-T1B-A.

7. The status indication circuit for a flip-up lamp as described in claim 3, characterized in that: The signal processing chip (U1) has a relay circuit on pin A, which includes a second diode (D2) and a signal relay (K1) of model RL_HJR-3FF-S-ZF / 24VDC. Pin 2 of the signal relay (K1) is connected to the +24V DC power supply and the negative terminal of the second diode (D2), and pin 5 is connected to the positive terminal of the second diode (D2); pin 1 is the common terminal of the output contact and is connected to pin A; pin 3 is a normally open contact and grounded, and pin 4 is a normally closed contact and is connected to the +3.3V DC power supply and pin 1.

8. The status indication circuit for a flip-up lamp as described in claim 1, characterized in that: The ambient light detection module, signal processing module, and flip indicator light are all mounted on the housing of the flip-up lamp.

9. A shadowless operating room lamp, characterized in that: The system includes a controller, an angle detection module, a shadowless light source, a first ambient light module and a second ambient light module, and a status indication circuit for the flip-up lamp as described in any one of claims 1-7. The angle detection module is used to collect the angle information of the lamp and send it to the controller. The controller drives the shadowless light source or the corresponding ambient light module to turn on according to the received angle information of the lamp. The signal processing module in the status indication circuit is connected to the controller.

10. The operating room shadowless lamp as described in claim 9, characterized in that: The angle detection module includes an angle sensor (U2) of model MPU6050 and its peripheral circuit. The SDA and SCL pins of the angle sensor (U2) are used to output the detected angle information of the lamp. The controller is implemented using a microcontroller (U3) of model STM32F103C8T6. The PB6 pin is connected to the SCL pin of the angle sensor, the PB7 pin is connected to the SDA pin of the angle sensor, the PA2 pin is coupled to the first ambient light module, and the PA3 pin is coupled to the second ambient light module.

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