CN211044527U - Crosswalk signal lamp with blind person sound prompt and countdown functions - Google Patents
Crosswalk signal lamp with blind person sound prompt and countdown functions Download PDFInfo
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- CN211044527U CN211044527U CN201921864313.6U CN201921864313U CN211044527U CN 211044527 U CN211044527 U CN 211044527U CN 201921864313 U CN201921864313 U CN 201921864313U CN 211044527 U CN211044527 U CN 211044527U
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Abstract
The utility model provides a crosswalk signal lamp with blind person sound prompting and countdown functions, which comprises a shell, wherein a red pedestrian lamp, a green pedestrian lamp, a red-green double-eight countdown composite red waiting lamp and a sound prompter are arranged on the shell; the red and green double eight-countdown composite red waiting lamp comprises three bright lamp patterns: red double eight countdown patterns, green double eight countdown patterns and red waiting character patterns; the circuit of the signal lamp comprises a countdown and waiting circuit and a sound circuit; the countdown and waiting circuit is respectively connected with a green light control line GRN, a RED light control line RED and a zero line N which are output by the traffic signal controller, and is connected with a key K1 through a key interface circuit; the sound circuit is connected with the countdown and waiting circuit; the RED pedestrian lamp is connected with a RED lamp control line RED and a zero line N, and the green pedestrian lamp is connected with a green lamp control line GRN and a zero line N.
Description
Technical Field
The utility model relates to a crosswalk signal lamp, especially a crosswalk signal lamp with blind person's sound suggestion and count-down function.
Background
At present, pedestrian crossing signal lamps on roads are only provided with simple green pedestrian lamps and red pedestrian lamps which are alternately displayed according to respective set phases;
when people are at the intersection, the existing pedestrian crossing lamp cannot display the remaining time of the current phase, and pedestrians lack prompt information; in addition, the current pedestrian crossing lamp has no voice or sound prompt, and cannot prompt the blind people who need to cross the street.
Disclosure of Invention
To the deficiency that exists among the prior art, the utility model provides a crosswalk signal lamp with blind person's sound suggestion and count-down function. The utility model adopts the technical proposal that:
a crosswalk signal lamp with blind person sound prompt and countdown functions comprises a shell, wherein a red pedestrian lamp, a green pedestrian lamp, a red-green double-eight countdown composite red waiting lamp and a sound prompt are arranged on the shell;
the red and green double eight-countdown composite red waiting lamp comprises three bright lamp patterns: red double eight countdown patterns, green double eight countdown patterns and red waiting character patterns;
the circuit of the signal lamp comprises a countdown and waiting circuit and a sound circuit;
the countdown and waiting circuit is respectively connected with a green light control line GRN, a RED light control line RED and a zero line N which are output by the traffic signal controller, and is connected with a key K1 through a key interface circuit; the sound circuit is connected with the countdown and waiting circuit; the RED pedestrian lamp is connected with a RED lamp control line RED and a zero line N, and the green pedestrian lamp is connected with a green lamp control line GRN and a zero line N.
Furthermore, the red-green double-eight countdown composite red waiting lamp comprises a red-green double-eight L ED array and a red waiting L ED array which are respectively used for displaying a red-green double-eight countdown pattern and a red waiting character pattern;
the countdown and waiting circuit comprises a rectifying circuit, an AC/DC voltage reduction circuit, a master control power supply circuit, a red-green state judgment circuit, an MCU master control circuit, a red-green double eight L ED array, a red-green double eight L ED driving circuit, a red waiting L ED array and a red waiting L ED driving circuit;
the sound circuit comprises a sound control circuit, a power amplification circuit and a loudspeaker SP;
the input ends of the rectifying circuit are respectively connected with a green light control line GRN, a RED light control line RED and a zero line N which are output by the traffic signal controller, the output end of the rectifying circuit is connected with the input end of the AC/DC voltage reducing circuit, and the grounding line of the rectifying circuit and the AC/DC voltage reducing circuit is connected with a first ground GND 1;
the positive output end of the AC/DC voltage reduction circuit outputs voltage VCC1 which is respectively connected to the master control power supply circuit, the red-green double-eight L ED array, the red-green waiting L ED array and the power amplification circuit;
the positive output end of the master control power supply circuit outputs voltage VCC2 which is respectively connected to the MCU master control circuit, the red and green state judgment circuit, the key interface circuit and the sound control circuit;
the ground ends of the master control power supply circuit, the MCU master control circuit, the red-green double-eight L ED drive circuit, the red-standby L ED drive circuit, the output side of the key interface circuit and the power amplification circuit are all connected with a second ground GND 2;
the MCU master control circuit comprises a microprocessor MCU, and the red and green state judgment circuit comprises a green light judgment circuit and a red light judgment circuit; two input ends of the green light judging circuit are respectively connected with a green light control line GRN and a zero line N, and two input ends of the RED light judging circuit are respectively connected with a RED light control line RED and a zero line N; an output signal GRN _ IN of the green light judgment circuit and an output signal RED _ IN of the RED light judgment circuit are respectively connected with two input ports of a microprocessor MCU IN the MCU main control circuit;
the output signal PUSH _ BUTTON of the key interface circuit is connected with the other input port of the microprocessor MCU in the MCU main control circuit;
two output ports of a microprocessor MCU in the MCU master control circuit are respectively connected with a red-green double eight L ED driving circuit and a red waiting L ED driving circuit, wherein the red-green double eight L ED driving circuit is connected with a red-green double eight L ED array, and the red waiting L ED driving circuit is connected with a red waiting L ED array;
the other output port of the microprocessor MCU in the MCU main control circuit is connected with the sound control circuit, the sound control circuit is connected with the power amplification circuit, and the output of the power amplification circuit is connected with the loudspeaker SP.
Further, the green light judgment circuit comprises resistors R1 and R2, a transient suppression diode D1, an optical coupler U1 and a capacitor C1; one end of the resistor R1 is connected with a green light control line GRN, the other end of the resistor R1 is connected with one end of a transient suppression diode D1, the other end of the resistor D1 is connected with one input end of an optocoupler U1, and the other input end of the optocoupler U1 is connected with a zero line N; the collector of the output end of the optocoupler U1 is connected with a voltage VCC2, the emitter of the output end is connected with one end of a capacitor C1 and a resistor R2, and a signal GRN _ IN is output to the microprocessor MCU; the other end of the capacitor C1 and the resistor R2 is connected with the second ground GND 2;
the red light judging circuit comprises resistors R3 and R4, a transient suppression diode D2, an optocoupler U2 and a capacitor C2; one end of the resistor R3 is connected with a RED light control line RED, the other end of the resistor R3 is connected with one end of a transient suppression diode D2, the other end of the resistor D2 is connected with one input end of an optocoupler U2, and the other input end of the optocoupler U2 is connected with a zero line N; a collector of an output end of the optocoupler U2 is connected with a voltage VCC2, an emitter of the output end is connected with one end of a capacitor C2 and a resistor R4, and a signal RED _ IN is output to the microprocessor MCU; the other end of the capacitor C2 and the resistor R4 is connected to the second ground GND 2.
Further, the key interface circuit comprises a resistor R5, a key K1, an optocoupler U3, a capacitor C3 and a resistor R6; one end of the resistor R5 is connected with a voltage VCC3, the other end of the resistor R5 is connected with one end of a key K1 and one input end of an optocoupler U3, and the other end of the key K1 and the other input end of the optocoupler U3 are connected with a third ground GND 3; the voltage VCC3 and the third ground GND3 are both obtained from a traffic signal controller; a collector of an output end of the optocoupler U3 is connected with a voltage VCC2, an emitter of the output end is connected with one end of a capacitor C3 and one end of a resistor R6, and a signal PUSH _ BUTTON is output to the microprocessor MCU; the other end of the capacitor C3 and the resistor R6 is connected to the second ground GND 2.
Further, the lighting pattern in the red pedestrian light is a red pedestrian pattern, and the lighting pattern in the green pedestrian light is a green pedestrian pattern.
The utility model has the advantages that:
1) a countdown display function is provided, and the remaining time when the green pedestrian light or the red pedestrian light is turned on can be displayed.
2) When the green pedestrian lamp is turned on, the sound prompt can be given, so that the blind can conveniently cross the street.
Drawings
Fig. 1 is a front schematic view of the present invention.
Fig. 2 is a schematic side view of the present invention.
Fig. 3 is a schematic diagram of the present invention and a traffic signal controller.
Fig. 4 is a main electrical schematic diagram of the present invention.
Fig. 5 is a schematic diagram of the red and green status determining circuit of the present invention.
Fig. 6 is a schematic diagram of the key interface circuit of the present invention.
Detailed Description
The invention is further described with reference to the following specific drawings and examples.
As shown in fig. 1 and 2, the crosswalk signal lamp with the blind voice prompt and countdown functions provided by the utility model comprises a shell 1, wherein a red pedestrian lamp 2, a green pedestrian lamp 3, a red-green double-eight countdown composite red waiting lamp 4 and a voice prompter 5 are arranged on the shell 1;
the bright lamp pattern in red pedestrian lamp 2 is red pedestrian pattern, and the bright lamp pattern in green pedestrian lamp 3 is green pedestrian pattern, and red green two eight compound red waiting lamp 4 of countdown includes three kinds of bright lamp patterns: red double eight countdown patterns, green double eight countdown patterns and red waiting character patterns;
the shell 1 comprises four independent shells which are sequentially connected from top to bottom, and a red pedestrian light 2, a green pedestrian light 3, a red-green double-eight countdown composite red waiting light 4 and a sound prompter 5 are respectively arranged in the respective independent shells; preferably, the upper sides of the red pedestrian lamp 2, the green pedestrian lamp 3 and the red-green double-eight countdown composite red waiting lamp 4 are respectively provided with a shading edge 6;
the utility model is used in cooperation with a traffic signal controller and a key K1; the key K1 may be mounted on a lamp post for carrying a signal lamp;
when the key K1 is not touched, the red pedestrian lamp 2 is turned on in the red pedestrian lamp phase, the countdown time (for example, the last 10 seconds) of the red pedestrian lamp phase is entered, and the red double-eight countdown pattern in the red-green double-eight countdown composite red waiting lamp 4 is turned on; after the countdown is finished, the green pedestrian lamp phase is started, and the process is similar to the red pedestrian lamp phase;
when the key K1 is touched and pressed, if the countdown time is not reached yet in the red pedestrian light phase, the red waiting character pattern in the red-green double-eight countdown composite red waiting light 4 is lightened to prompt the pedestrian to receive a request signal until the countdown time is reached, the red double-eight countdown pattern in the red-green double-eight countdown composite red waiting light 4 is lightened, and the red waiting character pattern is extinguished;
when the red pedestrian lamp phase is in the countdown time, even if the key K1 is touched, the red character pattern is not lightened, but the red double eight countdown pattern is lightened;
as shown in fig. 3, the signal lamp circuit includes a countdown and wait circuit and an audible circuit;
the countdown and waiting circuit is respectively connected with a green light control line GRN, a RED light control line RED and a zero line N which are output by the traffic signal controller, and is connected with a key K1 through a key interface circuit; the sound circuit is connected with the countdown and waiting circuit; the RED pedestrian lamp 2 is connected with a RED lamp control line RED and a zero line N, and the green pedestrian lamp 3 is connected with a green lamp control line GRN and a zero line N;
the red-green double-eight countdown composite red waiting lamp 4 comprises a red-green double-eight L ED array and a red waiting L ED array which are respectively used for displaying a red-green double-eight countdown pattern and a red waiting character pattern;
as shown in fig. 4, the countdown and wait circuit includes a rectifying circuit, an AC/DC voltage-reducing circuit, a main control power supply circuit, a red-green status determining circuit, an MCU main control circuit, a red-green double eight L ED array, a red-green double eight L ED driving circuit, a red-waiting L ED array, and a red-waiting L ED driving circuit;
the sound circuit comprises a sound control circuit, a power amplification circuit and a loudspeaker SP;
the input ends of the rectifying circuit are respectively connected with a green light control line GRN, a RED light control line RED and a zero line N which are output by the traffic signal controller, the output end of the rectifying circuit is connected with the input end of the AC/DC voltage reducing circuit, and the grounding line of the rectifying circuit and the AC/DC voltage reducing circuit is connected with a first ground GND 1;
the positive output end of the AC/DC voltage reduction circuit outputs voltage VCC1 which is respectively connected to a main control power supply circuit, a red-green double-eight L ED array and a power amplification circuit to supply power to the circuits, wherein the voltage VCC1 is 12 v-14 v;
the positive output end of the master control power supply circuit outputs voltage VCC2 which is respectively connected to the MCU master control circuit, the red and green state judgment circuit, the key interface circuit and the sound control circuit to supply power for the circuits; voltage VCC2 is 5 v;
the ground ends of the master control power supply circuit, the MCU master control circuit, the red-green double-eight L ED drive circuit, the red-standby L ED drive circuit, the output side of the key interface circuit and the power amplification circuit are all connected with a second ground GND 2;
the MCU master control circuit comprises a microprocessor MCU, and the red and green state judgment circuit comprises a green light judgment circuit and a red light judgment circuit; two input ends of the green light judging circuit are respectively connected with a green light control line GRN and a zero line N, and two input ends of the RED light judging circuit are respectively connected with a RED light control line RED and a zero line N; an output signal GRN _ IN of the green light judgment circuit and an output signal RED _ IN of the RED light judgment circuit are respectively connected with two input ports of a microprocessor MCU IN the MCU main control circuit;
the output signal PUSH _ BUTTON of the key interface circuit is connected with the other input port of the microprocessor MCU in the MCU main control circuit;
two output ports of a microprocessor MCU in the MCU master control circuit are respectively connected with a red-green double eight L ED driving circuit and a red waiting L ED driving circuit, wherein the red-green double eight L ED driving circuit is connected with a red-green double eight L ED array, and the red waiting L ED driving circuit is connected with a red waiting L ED array;
the other output port of the microprocessor MCU in the MCU master control circuit is connected with a sound control circuit, the sound control circuit is connected with a power amplification circuit, and the output of the power amplification circuit is connected with a loudspeaker SP; because the sound circuit is common, a mature circuit in the prior art can be adopted;
as shown in figure 5 of the drawings,
the green light judgment circuit comprises resistors R1 and R2, a transient suppression diode D1, an optocoupler U1 and a capacitor C1; one end of the resistor R1 is connected with a green light control line GRN, the other end of the resistor R1 is connected with one end of a transient suppression diode D1, the other end of the resistor D1 is connected with one input end of an optocoupler U1, and the other input end of the optocoupler U1 is connected with a zero line N; the collector of the output end of the optocoupler U1 is connected with a voltage VCC2, the emitter of the output end is connected with one end of a capacitor C1 and a resistor R2, and a signal GRN _ IN is output to the microprocessor MCU; the other end of the capacitor C1 and the resistor R2 is connected with the second ground GND 2;
the red light judging circuit comprises resistors R3 and R4, a transient suppression diode D2, an optocoupler U2 and a capacitor C2; one end of the resistor R3 is connected with a RED light control line RED, the other end of the resistor R3 is connected with one end of a transient suppression diode D2, the other end of the resistor D2 is connected with one input end of an optocoupler U2, and the other input end of the optocoupler U2 is connected with a zero line N; a collector of an output end of the optocoupler U2 is connected with a voltage VCC2, an emitter of the output end is connected with one end of a capacitor C2 and a resistor R4, and a signal RED _ IN is output to the microprocessor MCU; the other end of the capacitor C2 and the resistor R4 is connected with the second ground GND 2;
as shown in fig. 6, the key interface circuit includes a resistor R5, a key K1, an optocoupler U3, a capacitor C3, and a resistor R6; one end of the resistor R5 is connected with a voltage VCC3, the other end of the resistor R5 is connected with one end of a key K1 and one input end of an optocoupler U3, and the other end of the key K1 and the other input end of the optocoupler U3 are connected with a third ground GND 3; the voltage VCC3 and the third ground GND3 are both obtained from a traffic signal controller; a collector of an output end of the optocoupler U3 is connected with a voltage VCC2, an emitter of the output end is connected with one end of a capacitor C3 and one end of a resistor R6, and a signal PUSH _ BUTTON is output to the microprocessor MCU; the other end of the capacitor C3 and the resistor R6 is connected to the second ground GND 2.
When 220v alternating current exists on a green light control line GRN, an optocoupler U1 is conducted, an output signal GRN _ IN is at a high level, and after the countdown time of a green pedestrian light phase is entered, a microprocessor MCU IN an MCU main control circuit controls a green L ED IN a red-green double-eight L ED array to be lightened, namely a green double-eight countdown pattern is lightened;
when 220v alternating current exists on a RED light control line RED, an optocoupler U2 is conducted, an output signal RED _ IN is at a high level, and after the countdown time of a RED pedestrian light phase is entered, a microprocessor MCU IN an MCU main control circuit controls RED L ED IN a RED-green double-eight L ED array to be lightened, namely a RED double-eight countdown pattern is lightened;
the microprocessor MCU can also learn the time lengths of the green pedestrian light phase and the RED pedestrian light phase through the high level time lengths of the signals GRN _ IN and RED _ IN, and when the countdown time is not reached yet IN the RED pedestrian light phase, if the key K1 is detected to be touched, the RED waiting L ED array is controlled to be lightened, namely the RED waiting character pattern is lightened.
When the green pedestrian lamp is in the phase, the MCU master control circuit can also send out beep prompt tones through the sound circuit or send out prompt voice to remind the blind people of crossing the road at the moment.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (4)
1. A crosswalk signal lamp with blind person sound prompt and countdown functions comprises a shell (1), and is characterized in that a red pedestrian lamp (2), a green pedestrian lamp (3), a red-green double-eight countdown composite red waiting lamp (4) and a sound prompter (5) are mounted on the shell (1);
the red-green double eight-countdown composite red waiting lamp (4) comprises three bright lamp patterns: red double eight countdown patterns, green double eight countdown patterns and red waiting character patterns;
the circuit of the signal lamp comprises a countdown and waiting circuit and a sound circuit;
the countdown and waiting circuit is respectively connected with a green light control line GRN, a RED light control line RED and a zero line N which are output by the traffic signal controller, and is connected with a key K1 through a key interface circuit; the sound circuit is connected with the countdown and waiting circuit; the RED pedestrian lamp (2) is connected with a RED lamp control line RED and a zero line N, and the green pedestrian lamp (3) is connected with a green lamp control line GRN and a zero line N;
the red-green double-eight countdown composite red waiting lamp (4) comprises a red-green double-eight L ED array and a red waiting L ED array which are respectively used for displaying a red-green double-eight countdown pattern and a red waiting character pattern;
the countdown and waiting circuit comprises a rectifying circuit, an AC/DC voltage reduction circuit, a master control power supply circuit, a red-green state judgment circuit, an MCU master control circuit, a red-green double eight L ED array, a red-green double eight L ED driving circuit, a red waiting L ED array and a red waiting L ED driving circuit;
the sound circuit comprises a sound control circuit, a power amplification circuit and a loudspeaker SP;
the input ends of the rectifying circuit are respectively connected with a green light control line GRN, a RED light control line RED and a zero line N which are output by the traffic signal controller, the output end of the rectifying circuit is connected with the input end of the AC/DC voltage reducing circuit, and the grounding line of the rectifying circuit and the AC/DC voltage reducing circuit is connected with a first ground GND 1;
the positive output end of the AC/DC voltage reduction circuit outputs voltage VCC1 which is respectively connected to the master control power supply circuit, the red-green double-eight L ED array, the red-green waiting L ED array and the power amplification circuit;
the positive output end of the master control power supply circuit outputs voltage VCC2 which is respectively connected to the MCU master control circuit, the red and green state judgment circuit, the key interface circuit and the sound control circuit;
the ground ends of the master control power supply circuit, the MCU master control circuit, the red-green double-eight L ED drive circuit, the red-standby L ED drive circuit, the output side of the key interface circuit and the power amplification circuit are all connected with a second ground GND 2;
the MCU master control circuit comprises a microprocessor MCU, and the red and green state judgment circuit comprises a green light judgment circuit and a red light judgment circuit; two input ends of the green light judging circuit are respectively connected with a green light control line GRN and a zero line N, and two input ends of the RED light judging circuit are respectively connected with a RED light control line RED and a zero line N; an output signal GRN _ IN of the green light judgment circuit and an output signal RED _ IN of the RED light judgment circuit are respectively connected with two input ports of a microprocessor MCU IN the MCU main control circuit;
the output signal PUSH _ BUTTON of the key interface circuit is connected with the other input port of the microprocessor MCU in the MCU main control circuit;
two output ports of a microprocessor MCU in the MCU master control circuit are respectively connected with a red-green double eight L ED driving circuit and a red waiting L ED driving circuit, wherein the red-green double eight L ED driving circuit is connected with a red-green double eight L ED array, and the red waiting L ED driving circuit is connected with a red waiting L ED array;
the other output port of the microprocessor MCU in the MCU main control circuit is connected with the sound control circuit, the sound control circuit is connected with the power amplification circuit, and the output of the power amplification circuit is connected with the loudspeaker SP.
2. The pedestrian crossing signal lamp with the blind audible prompting and countdown functions as claimed in claim 1,
the green light judgment circuit comprises resistors R1 and R2, a transient suppression diode D1, an optocoupler U1 and a capacitor C1; one end of the resistor R1 is connected with a green light control line GRN, the other end of the resistor R1 is connected with one end of a transient suppression diode D1, the other end of the resistor D1 is connected with one input end of an optocoupler U1, and the other input end of the optocoupler U1 is connected with a zero line N; the collector of the output end of the optocoupler U1 is connected with a voltage VCC2, the emitter of the output end is connected with one end of a capacitor C1 and a resistor R2, and a signal GRN _ IN is output to the microprocessor MCU; the other end of the capacitor C1 and the resistor R2 is connected with the second ground GND 2;
the red light judging circuit comprises resistors R3 and R4, a transient suppression diode D2, an optocoupler U2 and a capacitor C2; one end of the resistor R3 is connected with a RED light control line RED, the other end of the resistor R3 is connected with one end of a transient suppression diode D2, the other end of the resistor D2 is connected with one input end of an optocoupler U2, and the other input end of the optocoupler U2 is connected with a zero line N; a collector of an output end of the optocoupler U2 is connected with a voltage VCC2, an emitter of the output end is connected with one end of a capacitor C2 and a resistor R4, and a signal RED _ IN is output to the microprocessor MCU; the other end of the capacitor C2 and the resistor R4 is connected to the second ground GND 2.
3. The pedestrian crossing signal lamp with the blind audible prompting and countdown functions as claimed in claim 1,
the key interface circuit comprises a resistor R5, a key K1, an optocoupler U3, a capacitor C3 and a resistor R6; one end of the resistor R5 is connected with a voltage VCC3, the other end of the resistor R5 is connected with one end of a key K1 and one input end of an optocoupler U3, and the other end of the key K1 and the other input end of the optocoupler U3 are connected with a third ground GND 3; the voltage VCC3 and the third ground GND3 are both obtained from a traffic signal controller; a collector of an output end of the optocoupler U3 is connected with a voltage VCC2, an emitter of the output end is connected with one end of a capacitor C3 and one end of a resistor R6, and a signal PUSH _ BUTTON is output to the microprocessor MCU; the other end of the capacitor C3 and the resistor R6 is connected to the second ground GND 2.
4. The pedestrian crossing signal lamp with the blind audible prompting and countdown functions as claimed in claim 1,
the lighting patterns in the red pedestrian lamps (2) are red pedestrian patterns, and the lighting patterns in the green pedestrian lamps (3) are green pedestrian patterns.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921864313.6U CN211044527U (en) | 2019-11-01 | 2019-11-01 | Crosswalk signal lamp with blind person sound prompt and countdown functions |
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| CN201921864313.6U CN211044527U (en) | 2019-11-01 | 2019-11-01 | Crosswalk signal lamp with blind person sound prompt and countdown functions |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113421446A (en) * | 2021-06-01 | 2021-09-21 | 朱世强 | Green lamp intelligent voice prompter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113421446A (en) * | 2021-06-01 | 2021-09-21 | 朱世强 | Green lamp intelligent voice prompter |
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