Data reader and emergency lamp assembly

Abstract

The utility model provides a data reader and an emergency lamp assembly, and belongs to the technical field of emergency lamps, the data reader comprises a lamp communication circuit, the lamp communication circuit is electrically connected with a control circuit, the lamp communication circuit is used for being in communication connection with an external lamp, and the lamp communication circuit is electrically connected with the control circuit. A corresponding lamp signal is output to the control circuit; the control circuit is used for outputting a display signal according to the lamp signal; and the input end of the display circuit is connected with the output end of the control circuit, and the display circuit is used for displaying lamp data according to the display signal. The technical scheme of the utility model has the advantages of simple communication, high stability and strong anti-interference capability, and can quickly read the lamp information to judge the emergency use state and fault alarm condition of the lamp.

Description

Technical Field

[0001] The present application relates to the technical field of emergency lighting, and in particular to a data reader and an emergency lighting assembly. Background Art

[0002] Fire emergency lighting, as a vital component in the field of fire evacuation applications, has an increasingly wide range of applications and its importance cannot be ignored. These lamps play a vital role in emergency situations such as fires, providing lighting and guidance for personnel evacuation. Fire emergency lighting usually has two working modes: normal mode and emergency mode. In normal mode, the lamp is powered by the mains to provide daily lighting. When the mains power is interrupted or an emergency such as a fire occurs, the lamp will immediately switch to emergency mode, provide lighting through the built-in backup power supply, and send out a fault alarm signal so that personnel can be notified in time for processing.

[0003] However, in actual engineering sites, inspection and maintenance personnel often face a problem: in actual engineering sites, inspection and maintenance personnel are often unable to directly read the lamp information. This may be due to complex on-site environments, insufficient light, or maintenance personnel not having professional inspection tools. This difficulty in reading information not only affects the work efficiency of maintenance personnel, but may also cause the lamps to fail to work properly in emergency situations, thereby increasing the risk of emergency situations such as fires. Utility Model Content

[0004] The main purpose of the utility model is to provide a data reader, aiming to solve the technical problem that it is impossible to directly read the lamp information to determine the emergency use status and fault alarm status of the lamp.

[0005] To achieve the above object, the utility model provides a data reader, comprising:

[0006] Control circuit;

[0007] A lamp communication circuit, the lamp communication circuit being electrically connected to the control circuit, the lamp communication circuit being used to communicate with an external lamp and output a corresponding lamp signal to the control circuit;

[0008] A control circuit, the control circuit is used to output a display signal according to a lamp signal;

[0009] A display circuit, wherein the input end of the display circuit is connected to the output end of the control circuit, and the display circuit is used to display the lamp data according to the display signal.

[0010] In one embodiment, it further includes a first connection terminal, which is connected to the input end of the lamp communication circuit, and the first connection terminal includes a type-A connection socket.

[0011] In one embodiment, the lamp communication circuit includes:

[0012] a first switch element, wherein a first resistor is connected between a first conductive end and a second conductive end of the first switch element, the first conductive end of the first switch element is connected to the second end of the first connecting terminal, and the second conductive end of the first switch element is connected to the transmitting end of the control circuit;

[0013] A second switch element, a second resistor is connected between the first conduction end and the second conduction end of the second switch element, the first conduction end of the second switch element is connected to the third end of the first connection terminal, and the second conduction end of the first switch element is connected to the receiving end of the control circuit.

[0014] In one embodiment, it further includes:

[0015] A power circuit, the power circuit being electrically connected to the control circuit, the lamp communication circuit and the display circuit respectively, and the power circuit being used to supply power of a corresponding voltage level;

[0016] The power supply circuit comprises:

[0017] A charging circuit, the charging circuit is used to connect to an external power source, and the charging circuit is used to input the external power source into the battery;

[0018] A switch circuit, wherein an input end of the switch circuit is connected to an output end of the charging circuit.

[0019] In one embodiment, the charging circuit comprises:

[0020] a second connection terminal, wherein a first indicating circuit is connected between a first end and a fourth end of the second connection terminal, and the fourth end of the second connection terminal is grounded;

[0021] a charging chip, wherein a power input terminal of the charging chip is connected to a first end of the second connection terminal, a third resistor is connected between a sixth end of the charging chip and ground, and a second indication circuit is connected between the first end of the charging chip and ground;

[0022] A battery, wherein a fuse is connected between the positive electrode of the battery and the third terminal of the charging chip, and the negative electrode of the battery is grounded;

[0023] The first indicating circuit includes a fourth resistor and a first indicator light, wherein a first end of the fourth resistor is connected to a first end of the second connecting terminal, a second end of the fourth resistor is connected to a positive electrode of the first indicator light, and a negative electrode of the first indicator light is grounded;

[0024] The second indication circuit includes a fifth resistor and a second indicator light, wherein a first end of the fifth resistor is connected to a first end of the charging chip, a second end of the fifth resistor is connected to a positive electrode of the second indicator light, and a negative electrode of the second indicator light is grounded.

[0025] In one embodiment, the power on / off circuit comprises:

[0026] A third switch element, wherein a sixth resistor is connected between the first conduction end and the control end of the third switch element;

[0027] a first switch, wherein a seventh resistor is connected between a first end of the first switch and ground, and a second end of the first switch is connected to a control end of the third switch element;

[0028] a fourth switch element, wherein an eighth resistor is connected between a first conduction end of the fourth switch element and a control end of the third switch element, a second conduction end of the fourth switch element is grounded, at least one capacitor is connected between the fourth switch element and the ground, and a ninth resistor is connected between the first conduction end of the fourth switch element and the ground;

[0029] a first diode, wherein a cathode of the first diode is connected to a first end of the first switch, a first capacitor is connected between an anode of the first diode and ground, and two ends of the first diode are connected in parallel to a tenth resistor;

[0030] a fifth switch element, wherein a first conduction end of the fifth switch element is connected to the control end of the fourth switch element, a second conduction end of the fifth switch element is grounded, and an eleventh resistor is connected between the control end of the fifth switch element and a common node between the first diode and the first capacitor;

[0031] A second diode, wherein an anode of the second diode is connected to the second conduction end of the third switch element, and a twelfth resistor is connected between a cathode of the second diode and the control end of the fifth switch element.

[0032] In one embodiment, the power supply circuit comprises:

[0033] A step-down circuit, wherein the power output end of the step-down circuit is connected to the power input end of the control circuit, the power output end of the step-down circuit is connected to the power input end of the lamp communication circuit, and the step-down circuit is used to reduce the external input power voltage;

[0034] A boost circuit, wherein the power output end of the boost circuit is respectively connected to the power input end of the lamp communication circuit and the power input end of the display circuit, and the power input end of the boost circuit is connected to the power output end of the switch circuit.

[0035] In one embodiment, the step-down circuit comprises:

[0036] A step-down chip, wherein at least one capacitor is connected between the power input terminal of the step-down chip and the ground, at least one capacitor is connected between the power output terminal of the step-down chip and the ground, and the power output terminal of the step-down chip is used to output 3.3V power.

[0037] In one embodiment, the boost circuit comprises:

[0038] A boost chip, wherein a first inductor is connected between the first end and the fifth end of the boost chip, and a thirteenth resistor is connected between the third end of the boost chip and the ground;

[0039] a third diode, a fourth diode is connected between the cathode of the third diode and the second end of the first inductor, a second capacitor is connected between a common node of the fourth diode and the third diode and ground, a fourteenth resistor is connected between a common node of the fourth diode and the third diode and the third end of the boost chip, and at least one capacitor is connected between a common node of the fourth diode and the third diode and ground;

[0040] A fifteenth resistor, wherein a second end of the fifteenth resistor is connected to a fourth end of the boost chip.

[0041] In addition, to achieve the above-mentioned purpose, the utility model also provides an emergency lighting assembly, and the emergency lighting assembly includes a data reader as described above.

[0042] The embodiment of the utility model adopts a lamp communication circuit to be electrically connected to the control circuit, and connects to an external lamp through a first connection terminal so that the lamp communication circuit can read lamp information and fault alarm records, and then connects to the display circuit through the control circuit to display lamp data. The communication is simple, the stability is high, and the anti-interference ability is strong. The lamp information can be quickly read to determine the emergency use status and fault alarm status of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0044] Figure 1 This is a structural schematic diagram of an embodiment of a data reader of the utility model;

[0045] Figure 2 for Figure 1 Schematic diagram of the lamp communication circuit in;

[0046] Figure 3 This is a structural schematic diagram of another embodiment of the data reader of the utility model;

[0047] Figure 4 This is a structural schematic diagram of another embodiment of the data reader of the utility model;

[0048] Figure 5 for Figure 4 Schematic diagram of the charging circuit in;

[0049] Figure 6 for Figure 4 The schematic diagram of the switch circuit in ;

[0050] Figure 7 for Figure 4 Schematic diagram of the step-down circuit in;

[0051] Figure 8 for Figure 4 Schematic diagram of the boost circuit in .

[0052] Description of Figure Numbers:

[0053] Label name Label name 100 First connection terminal 510 Charging Circuit 200 Lighting communication circuit 520 Switching circuit 300 Control Circuit 530 Buck circuit 400 Display circuit 540 Boost circuit 500 Power Circuit - -

[0054] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0056] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0057] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0058] like Figure 1 As shown, an embodiment of the utility model provides a data reader, including a control circuit 300, a lamp communication circuit 200, a first connection terminal 100, a control circuit 300 and a display circuit 400, wherein:

[0059] The lamp communication circuit 200 is electrically connected to the control circuit 300, and the lamp communication circuit 200 is used to read lamp information and fault alarm records, and output lamp signals to the control circuit 300; the first connection terminal 100 is electrically connected to the lamp communication circuit 200, and the first connection terminal 100 is used to connect to the communication end of an external lamp; the control circuit 300 is used to output a display signal according to the lamp signal; the input end of the display circuit 400 is connected to the output end of the control circuit 300, and the display circuit 400 is used to display lamp data according to the display signal.

[0060] In this embodiment, the lamp communication circuit 200 is connected to the communication end of the external lamp through the first connection terminal 100, so that the lamp information and fault alarm record of the external lamp can be read. These lamp information may include the model, production date, service life, etc. of the lamp, and the fault alarm record may include the fault type and occurrence time of the lamp. The lamp communication circuit 200 converts this information into a lamp signal and outputs it to the control circuit 300. Specifically, the lamp communication circuit 200 includes a serial communication interface, a parallel communication interface or a wireless communication interface. Serial communication interfaces such as RS232, RS485, etc., parallel communication interfaces such as I2C, SPI, etc., and wireless communication interfaces such as Bluetooth, Wi-Fi, etc. According to actual needs, a suitable communication interface can be selected to communicate with the external lamp. In this embodiment, a serial communication method is preferred. The first connection terminal 100 is connected to the input end of the lamp communication circuit 200, and the first connection terminal 100 includes a type-A connector.

[0061] In this embodiment, after receiving the lamp signal, the control circuit 300 converts the lamp signal into a display signal according to a preset algorithm or logic. This conversion process may include operations such as decoding, processing, and analysis, so as to convert the original lamp signal into a format that is easy to understand and display. Specifically, the control circuit 300 includes a microprocessor, which is used to process the lamp signal and generate a display signal. The microprocessor can be a variety of chips with data processing capabilities, such as a CPU, a DSP, etc. The microprocessor receives the lamp signal according to a preset program or algorithm, and performs operations such as decoding, analysis, and processing to generate a display signal suitable for display by the display circuit 400. The use of a microprocessor improves the processing power and flexibility of the control circuit 300, so that the data reader can adapt to more complex lamp management needs.

[0062] In this embodiment, the input end of the display circuit 400 is connected to the output end of the control circuit 300 for receiving a display signal. According to the display signal, the display circuit 400 can display the lamp data, such as the lamp model, state, fault type, etc. The display circuit 400 can adopt various display modes, such as LED display screen, liquid crystal display screen, etc., so that the user can intuitively view the lamp data.

[0063] The data reader of the embodiment of the utility model realizes communication with external lamps through the cooperation of the lamp communication circuit 200 and the control circuit 300, so as to read and display the information and fault alarm records of the lamps. This communication method is simple, stable, and has strong anti-interference ability. It can quickly read the lamp information, judge the emergency use status and fault alarm status of the lamp, and provide convenience for the maintenance and management of the lamp.

[0064] In addition, the data reader of the embodiment of the utility model can also be expanded and upgraded according to actual needs. For example, more communication interfaces can be added to connect multiple external lamps at the same time; more display modes can be added to better adapt to different usage scenarios; more control functions can be added to achieve more complex lamp management tasks. These expansions and upgrades can be achieved by modifying or adding corresponding circuits and components, thereby improving the flexibility and scalability of the data reader.

[0065] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0066] In this embodiment, the display circuit 400 includes a digital tube, an LCD display screen or an LED display screen.

[0067] In this embodiment, the display circuit 400 determines the user interface friendliness and the efficiency of information transmission. In order to meet the needs of different application scenarios, code tubes, LCD display screens and LED display screens can be selected but not limited to help operators quickly understand the status of emergency lighting. These display screens have their own characteristics and can meet the needs of different users, providing a strong guarantee for the efficient transmission of information.

[0068] The technical solution of the utility model adopts a lamp communication circuit 200 to be electrically connected to the control circuit 300, and connects to an external lamp through a first connection terminal 100, so that the lamp communication circuit 200 can read the lamp information and fault alarm records, and then connects to the display circuit 400 through the control circuit 300 to display the lamp data. The communication is simple, the stability is high, and the anti-interference ability is strong. The lamp information can be quickly read to determine the emergency use status and fault alarm status of the lamp.

[0069] It can be understood that this embodiment mainly provides a circuit that can realize data collection for emergency lighting, and specifically reads through the lighting communication circuit, and transmits the signal to the control circuit for processing, and then displays it through the display circuit. The processing process of the control circuit involved can be based on the existing data processing logic.

[0070] Combined with reference Figure 2 As shown, further, another embodiment of the utility model provides a data reader, based on the above Figure 1 In the embodiment shown, the lamp communication circuit 200 includes a first switch element TEST1 Q4 and a second switch element Q5, wherein:

[0071] A first resistor R02 is connected between the first conduction end and the second conduction end of the first switch TEST1 element Q4, the first conduction end of the first switch TEST1 element Q4 is connected to the second end of the first connection terminal 100, and the second conduction end of the first switch TEST1 element Q4 is connected to the sending end of the control circuit 300; a second resistor R01 is connected between the first conduction end and the second conduction end of the second switch element Q5, the first conduction end of the second switch element Q5 is connected to the third end of the first connection terminal 100, and the second conduction end of the first switch TEST1 element Q4 is connected to the receiving end of the control circuit 300.

[0072] In this embodiment, the first switch TEST1 element Q4 and the second switch element Q5 are used to control the connection state between the lamp communication circuit 200 and the first connection terminal 100, so as to realize the communication with the external lamp. A first resistor R02 is connected between the first conduction end and the second conduction end of the first switch TEST1 element Q4, which is used to limit the current and protect the circuit safety. A second resistor R01 is connected between the first conduction end and the second conduction end of the second switch element Q5, which also plays a role of current limiting protection. When the first switch TEST1 element Q4 is turned on, the circuit between its first conduction end and the second conduction end is connected, so that the lamp communication circuit 200 can be connected to the control circuit 300 at the sending end through the second end of the first connection terminal 100. When the second switch element Q5 is turned on, the circuit between its first conduction end and the second conduction end is connected, so that the lamp communication circuit 200 can be connected to the control circuit 300 at the receiving end through the third end of the first connection terminal 100. By controlling the conduction state of the first switch element Q4 and the second switch element Q5, bidirectional communication between the lamp communication circuit 200 and the control circuit 300 can be achieved, thereby reading and sending lamp information. This method of using switch elements has the characteristics of flexible control and fast response speed, and can adapt to different communication protocols and external lamp requirements. At the same time, by reasonably designing circuit parameters and selecting appropriate switch elements, the stability and reliability of communication can be ensured to meet actual application requirements.

[0073] Combined with reference Figure 3 and Figure 4 As shown, further, another embodiment of the utility model provides a data reader, based on the above Figure 1 The embodiment shown further comprises a power supply circuit 500, wherein:

[0074] The power circuit 500 is electrically connected to the control circuit 300, the lamp communication circuit 200 and the display circuit 400 respectively, and the power circuit 500 is used to supply power of a corresponding voltage level;

[0075] The power supply circuit 500 includes a charging circuit 510 and a power on / off circuit 520, wherein:

[0076] The charging circuit 510 is used to access an external power source, and the charging circuit 510 is used to input the external power source into the battery BT1; the input end of the power on / off circuit 520 is connected to the output end of the charging circuit 510.

[0077] In this embodiment, the power supply circuit 500 provides a stable power supply for the data reader to ensure the normal operation of each circuit module. The charging circuit 510 is responsible for connecting the external power supply to the battery BT1 and charging it to provide a long-lasting and stable power support for the data reader. The power on / off circuit 520 controls the power on / off state to ensure that the data reader can be quickly started or shut down when needed. This design not only extends the service life of the data reader, but also improves its stability and reliability, and provides convenience for the maintenance and management of the lamp.

[0078] Combined with reference Figure 5 As shown, further, another embodiment of the utility model provides a data reader, based on the above Figure 3 In the embodiment shown, the charging circuit 510 includes a second connection terminal CN1, a charging chip U1 and a battery BT1, wherein:

[0079] A first indication circuit is connected between the first end and the fourth end of the second connection terminal CN1, and the fourth end of the second connection terminal CN1 is grounded; the power input end of the charging chip U1 is connected to the first end of the second connection terminal CN1, a third resistor R2 is connected between the sixth end of the charging chip U1 and the ground, and a second indication circuit is connected between the first end of the charging chip U1 and the ground; a fuse F1 is connected between the positive electrode of the battery BT1 and the third end of the charging chip U1, and the negative electrode of the battery BT1 is grounded; the first indication circuit includes a fourth resistor R1 and a first indicator light, the first end of the fourth resistor R1 is connected to the first end of the second connection terminal CN1, the second end of the fourth resistor R1 is connected to the positive electrode of the first indicator light, and the negative electrode of the first indicator light is grounded; the second indication circuit includes a fifth resistor R20 and a second indicator light, the first end of the fifth resistor R20 is connected to the first end of the charging chip U1, the second end of the fifth resistor R20 is connected to the positive electrode of the second indicator light, and the negative electrode of the second indicator light is grounded.

[0080] In this embodiment, the second connection terminal CN1 serves as an interface for accessing an external power source, and a first indication circuit is connected between the first and fourth ends thereof for indicating the charging status. The charging chip U1, as the core component of the charging circuit 510, is responsible for converting the external power source into a charging voltage and current suitable for the battery BT1. The power input end of the charging chip U1 is connected to the first end of the second connection terminal CN1 to receive an external power input. A third resistor R2 is connected between the sixth end of the charging chip U1 and the ground to limit the current and protect the circuit safety. A second indication circuit is connected between the first end of the charging chip U1 and the ground to indicate the working status of the charging chip U1. As an element for storing electrical energy, the battery BT1 has a fuse F1 connected between its positive pole and the third end of the charging chip U1 to protect the battery BT1 from damage caused by excessive current. The negative pole of the battery BT1 is grounded to form a complete circuit loop.

[0081] It can be understood that the first indication circuit includes a fourth resistor R1 and a first indicator light, and the first end of the fourth resistor R1 is connected to the first end of the second connection terminal CN1 to receive an external power input. The second end of the fourth resistor R1 is connected to the positive electrode of the first indicator light to reduce the voltage to a range suitable for the operation of the first indicator light. The negative electrode of the first indicator light is grounded to form a complete circuit loop. When the charging circuit 510 is working, the first indicator light will light up, indicating that the charging state is normal. The second indication circuit includes a fifth resistor R20 and a second indicator light, and the first end of the fifth resistor R20 is connected to the first end of the charging chip U1 to receive the working state signal of the charging chip U1. The second end of the fifth resistor R20 is connected to the positive electrode of the second indicator light to reduce the signal voltage to a range suitable for the operation of the second indicator light. The negative electrode of the second indicator light is grounded to form a complete circuit loop. When the charging chip U1 is working normally, the second indicator light will light up, indicating that the charging circuit 510 is in a normal working state. The above design enables the charging circuit 510 to have a concise and clear circuit structure and a clear indication function, which is convenient for users to understand the working state and charging status of the charging circuit 510. At the same time, by reasonably designing circuit parameters and selecting appropriate components, the stability and reliability of the charging circuit 510 can be ensured, providing a strong guarantee for the normal operation of the data reader.

[0082] Combined with reference Figure 6 As shown, further, the utility model also provides a data reader according to another embodiment, based on the above Figure 5 In the embodiment shown, the switch circuit 520 includes a third switch element Q1, a first switch TEST1, a fourth switch element Q2, a first diode D3, a fifth switch element Q4 and a second diode D4, wherein:

[0083] A sixth resistor R3 is connected between the first conduction end and the control end of the third switch element Q1; a seventh resistor R8 is connected between the first end of the first switch TEST1 and the ground, and the second end of the first switch TEST1 is connected to the control end of the third switch element Q1; an eighth resistor R4 is connected between the first conduction end of the fourth switch element Q2 and the control end of the third switch element Q1, the second conduction end of the fourth switch element Q2 is grounded, at least one capacitor is connected between the fourth switch element Q2 and the ground, and a ninth resistor R6 is connected between the first conduction end of the fourth switch element Q2 and the ground; the cathode of the first diode D3 is connected to the cathode of the first switch TE The first end of ST1 is connected, the first capacitor C2 is connected between the anode of the first diode D3 and the ground, and the two ends of the first diode D3 are connected in parallel with the tenth resistor R7; the first conduction end of the fifth switch element Q3 is connected to the control end of the fourth switch element Q2, the second conduction end of the fifth switch element Q3 is grounded, and the eleventh resistor R9 is connected between the control end of the fifth switch element Q3 and the common node of the first diode D3 and the first capacitor C2; the anode of the second diode D4 is connected to the second conduction end of the third switch element Q1, and the twelfth resistor R5 is connected between the cathode of the second diode D4 and the control end of the fifth switch element Q3.

[0084] In this embodiment, the switch circuit 520 is a key part of the data reader, which is responsible for controlling the power switch state of the entire device. The third switch element Q1 is the core component of the switch circuit 520, and a sixth resistor R3 is connected between its first conduction end and the control end, which is used to limit the current and protect the circuit safety. The first switch TEST1 is a switch operated by the user, and a seventh resistor R8 is connected between its first end and the ground for voltage division and current limiting. The second end of the first switch TEST1 is connected to the control end of the third switch element Q1, and the on-off state of the third switch element Q1 is controlled by the user. An eighth resistor R4 is connected between the fourth switch element Q2 and the control end of the third switch element Q1, which is used to adjust the amplitude of the control signal. The second conduction end of the fourth switch element Q2 is grounded to form a complete circuit loop. At the same time, at least one or more capacitors are connected between the fourth switch element Q2 and the ground for filtering and stabilizing the circuit operation. In addition, a ninth resistor R6 is also connected between the fourth switch element Q2 and the ground for limiting the current and protecting the circuit safety. The first diode D3 is used as a protection element, and its cathode is connected to the first end of the first switch TEST1, and the first capacitor C2 is connected between the anode and the ground, which is used to absorb voltage fluctuations and prevent circuit damage. The two ends of the first diode D3 are connected in parallel with the tenth resistor R7, which is used to limit the current and protect the diode from damage caused by excessive current. The fifth switch element Q3 is connected to the control end of the fourth switch element Q2, and its second conduction end is grounded to form a complete circuit loop. An eleventh resistor R9 is connected between the control end of the fifth switch element Q3 and the common node of the first diode D3 and the first capacitor C2, which is used to adjust the amplitude and stability of the control signal. The second diode D4 is used as another protection element, and its anode is connected to the second conduction end of the third switch element Q1, and the twelfth resistor R5 is connected between the cathode and the control end of the fifth switch element Q3, which is used to limit the current and protect the circuit safety.

[0085] Through the above circuit design, the switch circuit 520 can achieve a stable switch control function, ensuring that the data reader can be quickly turned on or off when needed. At the same time, by reasonably designing circuit parameters and selecting appropriate components, the stability and reliability of the switch circuit 520 can be ensured, providing a strong guarantee for the normal operation of the data reader and facilitating the maintenance and management of the lamp.

[0086] Combined with reference Figure 4 As shown, further, another embodiment of the utility model provides a data reader, based on the above Figure 3 In the embodiment shown, the power supply circuit 500 includes a buck circuit 530 and a boost circuit 540, wherein:

[0087] The power output end of the step-down circuit 530 is connected to the power input end of the control circuit 300, and the power output end of the step-down circuit 530 is connected to the power input end of the lamp communication circuit 200. The step-down circuit 530 is used to reduce the external input power voltage; the power output end of the boost circuit 540 is respectively connected to the power input end of the lamp communication circuit 200 and the power input end of the display circuit 400, and the power input end of the boost circuit 540 is connected to the power output end of the switch circuit 520.

[0088] In this embodiment, the power supply circuit 500 includes a step-down circuit 530 and a step-up circuit 540. The step-down circuit 530 is used to reduce the external input power supply voltage to meet the working requirements of the control circuit 300 and the lamp communication circuit 200. Its power output terminal is connected to the power input terminal of the control circuit 300 and the power input terminal of the lamp communication circuit 200 to ensure that these circuit modules can work normally. By reasonably designing the parameters of the step-down circuit 530 and selecting appropriate components, the stability and reliability of the power supply voltage can be ensured, providing a strong guarantee for the normal operation of the data reader.

[0089] The boost circuit 540 is used to increase the power supply voltage to meet the needs of certain circuit modules (such as the display circuit 400) for higher voltage. Its power output terminal is connected to the power input terminal of the lamp communication circuit 200 and the power input terminal of the display circuit 400 respectively to ensure that these circuit modules can work normally. By reasonably designing the parameters of the boost circuit 540 and selecting appropriate components, the stability and reliability of the power supply voltage can be ensured, providing a strong guarantee for the normal operation of the data reader.

[0090] In summary, the power circuit 500 of this embodiment is reasonably designed, stable and reliable, and can provide stable power supply for each circuit module of the data reader to ensure the normal operation of the data reader. At the same time, by reasonably designing circuit parameters and selecting appropriate components, the performance and safety of the power circuit 500 can be further improved, providing a strong guarantee for the long-term stable operation of the data reader.

[0091] Combined with reference Figure 8 As shown, further, another embodiment of the utility model provides a data reader, based on the above Figure 4 In the embodiment shown, the buck circuit 530 includes a buck chip U3, wherein:

[0092] At least one capacitor is connected between the power input terminal of the buck chip U3 and the ground, at least one capacitor is connected between the power output terminal of the buck chip U3 and the ground, and the power output terminal of the buck chip U3 is used to output 3.3V power.

[0093] In this embodiment, the core component of the step-down circuit 530 is the step-down chip U3, and at least one capacitor is connected between its power input terminal and the ground for filtering and stabilizing the input power. These capacitors can absorb high-frequency noise and ripples in the power supply to ensure that the step-down chip U3 obtains a stable and pure power signal. At least one capacitor is also connected between the power output terminal of the step-down chip U3 and the ground for filtering and stabilizing the output power. These capacitors can reduce the ripple and noise of the output power supply to ensure that the subsequent circuit obtains a stable and reliable power supply.

[0094] In particular, the power output terminal of the buck chip U3 is designed to output 3.3V power. This design is determined according to the working requirements of the subsequent circuits. The 3.3V power supply can provide a stable and reliable working voltage for the control circuit 300, the lamp communication circuit 200, etc., which can further improve the performance and safety of the buck circuit 530 and provide a strong guarantee for the long-term stable operation of the data reader.

[0095] At the same time, the buck circuit 530 of this embodiment is also simple and easy to manufacture and maintain. In practical applications, the capacity and quantity of the capacitor can be adjusted as needed to optimize circuit performance. In addition, different types of buck chips U3 can be selected according to actual needs to meet the needs of different working scenarios.

[0096] Combined with reference Figure 8 As shown, further, another embodiment of the utility model provides a data reader, based on the above Figure 4 In the embodiment shown, the boost circuit 540 includes a boost chip U2, a third diode D2 and a fifteenth resistor R10, wherein:

[0097] A first inductor L1 is connected between the first end and the fifth end of the boost chip U2, and a thirteenth resistor R12 is connected between the third end of the boost chip U2 and the ground; a fourth diode D5 is connected between the cathode of the third diode D2 and the second end of the first inductor L1, a second capacitor C3 is connected between the common node of the fourth diode D5 and the third diode D2 and the ground, a fourteenth resistor R11 is connected between the common node of the fourth diode D5 and the third diode D2 and the third end of the boost chip U2, and at least one capacitor is connected between the common node of the fourth diode D5 and the third diode D2 and the ground; the second end of the fifteenth resistor R10 is connected to the fourth end of the boost chip U2.

[0098] In this embodiment, the core component of the boost circuit 540 is the boost chip U2, which realizes the voltage increase through its internal circuit structure. In order to ensure the stability and reliability of the circuit, multiple components are set in the circuit for coordination and protection. Specifically, a first inductor L1 is connected between the first end and the fifth end of the boost chip U2, which is used to store and release energy to achieve the increase of voltage. A thirteenth resistor R12 is connected between the third end of the boost chip U2 and the ground, which is used to limit the current and protect the circuit from damage caused by excessive current. The third diode D2 and the fourth diode D5 are used as protection elements to prevent reverse current and overvoltage in the circuit. A fourth diode D5 is connected between the cathode of the third diode D2 and the second end of the first inductor L1 to form a protection loop. A second capacitor C3 is connected between the common node of the fourth diode D5 and the third diode D2 and the ground, which is used to filter and stabilize the voltage in the circuit. At the same time, this common node is also connected to the third end of the boost chip U2 with a fourteenth resistor R11, which is used to further limit the current and protect the circuit safety.

[0099] In particular, in order to further improve the stability and reliability of the circuit, at least one capacitor is connected between the common node of the fourth diode D5 and the third diode D2 and the ground to absorb high-frequency noise and ripple in the circuit. The second end of the fifteenth resistor R10 is connected to the fourth end of the boost chip U2 to adjust and control the output voltage of the boost circuit 540. By reasonably designing circuit parameters and selecting appropriate components, the performance and safety of the boost circuit 540 can be further improved, providing a strong guarantee for the long-term stable operation of the data reader, and having the advantages of high stability, strong reliability, and easy maintenance.

[0100] The utility model also proposes an emergency lighting assembly, which includes a data reader. The specific structure of the data reader refers to the above-mentioned embodiment. Since the emergency lighting assembly adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0101] The above is an implementation method provided in combination with specific content, and it is not considered that the specific implementation of this application is limited to these descriptions. Any similarity or similarity with the method, structure, etc. of this application, or any technical deduction or replacement made on the premise of the concept of this application, shall be deemed to be within the scope of protection of this application.

Claims

1. A data reader, characterized in that: include: Control circuit; A lamp communication circuit, the lamp communication circuit being electrically connected to the control circuit, the lamp communication circuit being used to communicate with an external lamp and output a corresponding lamp signal to the control circuit; A control circuit, the control circuit is used to output a display signal according to a lamp signal; A display circuit, wherein the input end of the display circuit is connected to the output end of the control circuit, and the display circuit is used to display the lamp data according to the display signal.

2. The data reader according to claim 1, characterized in that: It also includes a first connecting terminal, which is connected to the input end of the lamp communication circuit, and the first connecting terminal includes a type-A connecting socket.

3. The data reader according to claim 2, characterized in that: The lamp communication circuit comprises: a first switch element, wherein a first resistor is connected between a first conductive end and a second conductive end of the first switch element, the first conductive end of the first switch element is connected to the second end of the first connecting terminal, and the second conductive end of the first switch element is connected to the transmitting end of the control circuit; A second switch element, a second resistor is connected between the first conduction end and the second conduction end of the second switch element, the first conduction end of the second switch element is connected to the third end of the first connection terminal, and the second conduction end of the first switch element is connected to the receiving end of the control circuit.

4. The data reader according to claim 3, characterized in that: Also includes: A power circuit, the power circuit being electrically connected to the control circuit, the lamp communication circuit and the display circuit respectively, and the power circuit being used to supply power of a corresponding voltage level; The power supply circuit comprises: A charging circuit, the charging circuit is used to connect to an external power source, and the charging circuit is used to input the external power source into the battery; A switch circuit, wherein an input end of the switch circuit is connected to an output end of the charging circuit.

5. The data reader according to claim 4, characterized in that: The charging circuit comprises: a second connection terminal, wherein a first indicating circuit is connected between a first end and a fourth end of the second connection terminal, and the fourth end of the second connection terminal is grounded; a charging chip, wherein a power input terminal of the charging chip is connected to a first end of the second connection terminal, a third resistor is connected between a sixth end of the charging chip and ground, and a second indication circuit is connected between the first end of the charging chip and ground; A battery, wherein a fuse is connected between the positive electrode of the battery and the third terminal of the charging chip, and the negative electrode of the battery is grounded; The first indicating circuit includes a fourth resistor and a first indicator light, wherein a first end of the fourth resistor is connected to a first end of the second connecting terminal, a second end of the fourth resistor is connected to a positive electrode of the first indicator light, and a negative electrode of the first indicator light is grounded; The second indication circuit includes a fifth resistor and a second indicator light, wherein a first end of the fifth resistor is connected to a first end of the charging chip, a second end of the fifth resistor is connected to a positive electrode of the second indicator light, and a negative electrode of the second indicator light is grounded.

6. The data reader according to claim 5, characterized in that: The switch circuit comprises: A third switch element, wherein a sixth resistor is connected between the first conduction end and the control end of the third switch element; a first switch, wherein a seventh resistor is connected between a first end of the first switch and ground, and a second end of the first switch is connected to a control end of the third switch element; a fourth switch element, wherein an eighth resistor is connected between a first conduction end of the fourth switch element and a control end of the third switch element, a second conduction end of the fourth switch element is grounded, at least one capacitor is connected between the fourth switch element and the ground, and a ninth resistor is connected between the first conduction end of the fourth switch element and the ground; a first diode, wherein a cathode of the first diode is connected to a first end of the first switch, a first capacitor is connected between an anode of the first diode and ground, and two ends of the first diode are connected in parallel to a tenth resistor; a fifth switch element, wherein a first conduction end of the fifth switch element is connected to the control end of the fourth switch element, a second conduction end of the fifth switch element is grounded, and an eleventh resistor is connected between the control end of the fifth switch element and a common node between the first diode and the first capacitor; A second diode, wherein an anode of the second diode is connected to the second conduction end of the third switch element, and a twelfth resistor is connected between a cathode of the second diode and the control end of the fifth switch element.

7. The data reader according to claim 4, characterized in that: The power supply circuit comprises: A step-down circuit, wherein the power output end of the step-down circuit is connected to the power input end of the control circuit, the power output end of the step-down circuit is connected to the power input end of the lamp communication circuit, and the step-down circuit is used to reduce the external input power voltage; A boost circuit, wherein the power output end of the boost circuit is respectively connected to the power input end of the lamp communication circuit and the power input end of the display circuit, and the power input end of the boost circuit is connected to the power output end of the switch circuit.

8. The data reader according to claim 7, characterized in that: The step-down circuit comprises: A step-down chip, wherein at least one capacitor is connected between the power input terminal of the step-down chip and the ground, at least one capacitor is connected between the power output terminal of the step-down chip and the ground, and the power output terminal of the step-down chip is used to output 3.3V power.

9. The data reader according to claim 7, characterized in that: The boost circuit comprises: A boost chip, wherein a first inductor is connected between the first end and the fifth end of the boost chip, and a thirteenth resistor is connected between the third end of the boost chip and the ground; a third diode, a fourth diode is connected between the cathode of the third diode and the second end of the first inductor, a second capacitor is connected between a common node of the fourth diode and the third diode and ground, a fourteenth resistor is connected between a common node of the fourth diode and the third diode and the third end of the boost chip, and at least one capacitor is connected between a common node of the fourth diode and the third diode and ground; A fifteenth resistor, wherein a second end of the fifteenth resistor is connected to a fourth end of the boost chip.

10. Emergency lighting assembly, characterized in that, The emergency lighting assembly comprises a data reader as described in any one of claims 1-9.

Images