CN211906744U

CN211906744U - Photoelectric sand table system for urban planning

Info

Publication number: CN211906744U
Application number: CN202020888614.9U
Authority: CN
Inventors: 陈飞
Original assignee: Shanghai Oulong Model Identification Co ltd
Current assignee: Shanghai Oulong Model Identification Co ltd
Priority date: 2020-05-23
Filing date: 2020-05-23
Publication date: 2020-11-10
Anticipated expiration: 2030-05-23

Abstract

The utility model relates to a city planning photoelectricity sand table system relates to the technical field of sand table, it includes the sand table body, still include hall sensor and permanent magnet, hall sensor establishes on the control panel, the control panel setting is in one side of sand table body, sand table body edge shifting can be followed to the control panel, the holding tank has been seted up to one side that ground was kept away from to the control panel, the permanent magnet is arranged in the holding tank, the sand table body is provided with the parallelly connected pilot lamp LED of multiunit, signal connection has drive circuit between hall sensor and the pilot lamp LED. The utility model discloses a hall sensor, permanent magnet and pilot lamp LED's setting, hall sensor can switch on when receiving the magnetic field influence of magnetic material such as permanent magnet, can resources are saved, pilot lamp LED's light comparatively is fit for people's eye and watches, can effectively reduce the potential safety hazard; through the setting of control panel, the staff of being convenient for makes the permanent magnet be close to hall sensor for the return circuit switches on.

Description

Photoelectric sand table system for urban planning

Technical Field

The utility model belongs to the technical field of the technique of sand table and specifically relates to a city planning photoelectricity sand table system is related to.

Background

Most sand tables are displayed with their fixed image models at present, and some sand tables are decorated with lights on the objects on the sand tables to increase visibility. These types of sand tables are used for clearly displaying a specific object on a plurality of objects, and often the display guide personnel need to specifically designate the specific object through the indicating rod so that the specific object can be barely known by the viewer.

The existing indication rod is generally provided with a red light emitter at one end of the indication rod, which is far away from the display guide personnel, the red light emitter emits red light to facilitate observation of the observer, and when the display guide personnel introduce articles on a sand table for the observer, the red light emitter emits the red light to irradiate the part being explained by the display guide personnel.

The above prior art solutions have the following drawbacks: because infrared light is comparatively dazzling for people's eyes, especially younger, or bigger, or the more sensitive viewer of eye, and the irradiation of ruddiness is controlled by show guide personnel, appears shining around other viewer's eyes easily, has the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a city planning photoelectricity sand table system has the viewer of being convenient for and watches, and can reduce the function of potential safety hazard.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a photoelectric sand table system of city planning, includes the sand table body, still includes hall sensor and permanent magnet, hall sensor establishes on the control panel, the control panel sets up one side of sand table body, the control panel can be followed sand table body edge removes, the holding tank has been seted up to one side that ground was kept away from to the control panel, the permanent magnet is arranged in the holding tank, the sand table body is provided with the parallelly connected pilot lamp LED of multiunit, hall sensor switches on the back and triggers pilot lamp LED lights.

By adopting the technical scheme, when the display guide personnel need to guide the watching personnel to watch the specific object on the sand table body, the display guide personnel enables the permanent magnet to be close to the Hall sensor, when the permanent magnet is close to the Hall sensor, the Hall sensor outputs a signal, and the drive circuit enables the plurality of groups of indicator light LEDs to be lighted; in the process, the indicator light LED is adopted, the light of the indicator light LED is more suitable for being watched by human eyes, and the potential safety hazard can be effectively reduced; and the indicator light LED can be lighted only after the Hall sensor is electrified, so that resources can be saved.

The present invention may be further configured in a preferred embodiment as: the sand table body is provided with a sliding rail along the edge of the sand table body, and one side, far away from the containing groove, of the control panel is connected with the sliding rail in a sliding mode.

Through adopting above-mentioned technical scheme, when the show guide person leads the viewer to watch the sand table body for the control panel moves along the slide rail along with show guide person together, and the show of being convenient for knows personnel control permanent magnet and is close to hall sensor, thereby makes the return circuit switch on.

The present invention may be further configured in a preferred embodiment as: and a connecting wire between the Hall sensor and the indicating lamp LED synchronously rotates along with the rotation of the control panel.

Through adopting above-mentioned technical scheme, thereby avoid the connecting wire winding together, thereby produce chaotic magnetic field and influence hall sensor's switching.

The present invention may be further configured in a preferred embodiment as: the Hall sensor with connecting wire between the pilot lamp LED is kept away from the one end cladding of pilot lamp LED is in same insulating layer, just insulating layer one end is located the middle part of sand table body, other end signal connection Hall sensor.

Through adopting above-mentioned technical scheme, through the setting of insulating layer, ensure that the connecting wire can move along with the control panel together.

The present invention may be further configured in a preferred embodiment as: the signal connection has a comparison circuit between hall sensor and the pilot lamp LED, comparison circuit includes comparator U1, the output signal of hall sensor is received to the normal phase input of comparator U1, reference signal Vref is input to the inverting input of comparator U1, the output signal connection of comparator U1 the pilot lamp LED.

By adopting the technical scheme, the comparison circuit compares the signal of the Hall sensor after being conducted with the reference signal Vref, and when the signal of the Hall sensor is greater than the reference signal Vref, the comparator N1 outputs low level and is not enabled; when the signal of the Hall sensor is smaller than the reference signal Vref, the comparator N1 outputs high-point level to trigger the indicator light LED to light.

The present invention may be further configured in a preferred embodiment as: the driving circuit comprises an inverting amplifying circuit and an inverter N1, and is positioned between the comparing circuit and the indicator light LED, the negative phase input end of the inverting amplifying circuit is electrically connected with the output end of the comparing circuit, the positive phase input end of the inverting amplifying circuit is grounded, and the output end of the inverting amplifying circuit is electrically connected with the inverter N1; a first resistor R1 is electrically connected between the comparison circuit and the inverting amplification circuit, and the other end of the first resistor R1 is grounded.

By adopting the technical scheme, the output signal of the comparator N1 is subjected to phase inversion and proportional amplification by the phase inversion amplification circuit, and then is subjected to phase inversion again by the phase inverter N1, so that the indicator light LED is more easily triggered.

The present invention may be further configured in a preferred embodiment as: the signal connection has the voltage follower circuit between the phase inverter N1 and the pilot lamp LED, the voltage follower circuit includes integrated chip U2, the normal phase input of integrated chip U2 inputs the output signal of phase inverter N1, integrated chip U2's inverting input electricity is connected the output of integrated chip U2, integrated chip U2's output end signal connection the one end of pilot lamp LED.

By adopting the technical scheme, the voltage follower circuit can stably transmit the output signal of the inverter N1, so that the circuit is more stable.

The present invention may be further configured in a preferred embodiment as: one end of the indicator light LED, which is far away from the Hall sensor, is connected with a delay circuit through a signal, the delay circuit comprises a 555 time-base circuit, the pin 5 of the 555 time-base circuit is electrically connected with the cathode of a diode VD1, the anode of the diode VD1, the pin 4 and the pin 5 of the 555 time-base circuit are all connected with VCC, the pin 6, the pin 7 and the pin 2 of the 555 time base circuit are simultaneously electrically connected with a resistor Rt, the other end of the resistor Rt is connected with VCC, pin 2 of the 555 time base circuit is also electrically connected with a resistor R10, the other end of the resistor R10 is connected with VCC, the pin 2 of the 555 time-base circuit is electrically connected with a patch capacitor Ct at the same time, the other end of the patch capacitor Ct is grounded, the pin 1 of the 555 time-base circuit is grounded, the pin 3 of the 555 time-base circuit is electrically connected with the cathode of the diode VD2 and the ground, and the anode of the diode VD2 is grounded.

By adopting the technical scheme, the time delay circuit enables the LED of the indicating lamp to delay the lighting time, so that the personnel watching the indicating lamp can conveniently and the personnel not need to be shown and guided to always enable the permanent magnet to be close to the Hall sensor.

To sum up, the utility model discloses a following at least one useful technological effect:

1. through the arrangement of the Hall sensor, the permanent magnet and the indicating lamp LED, the Hall sensor can be conducted under the influence of the magnetic field of magnetic substances such as the permanent magnet, resources can be saved, the light of the indicating lamp LED is more suitable for being watched by human eyes, and potential safety hazards can be effectively reduced;

through the arrangement of the control panel, a worker can conveniently enable the permanent magnet to be close to the Hall sensor, so that the loop is conducted;

2. furthermore, the sliding rail is arranged, so that the movement of the control panel by a guide person can be conveniently displayed;

3. furthermore, through the arrangement of the insulating layer, the connecting wire is easier to move along with the control panel.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a schematic view of the overall structure of the connection structure between the connection line and the insulating layer.

Fig. 3 is a schematic circuit diagram of the present embodiment.

Fig. 4 is a circuit schematic diagram of a comparison circuit, an inverting amplification circuit, an inverter N1, and a voltage follower circuit.

Fig. 5 is a circuit schematic of the delay circuit.

In the figure, 1, a sand table body; 11. a slide rail; 12. a connecting wire; 121. an insulating layer; 2. a Hall sensor; 3. a permanent magnet; 4. a control panel; 41. accommodating grooves; 5. a comparison circuit; 6. an inverting amplifier circuit; 7. a voltage follower circuit; 8. a delay circuit.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a photoelectric sand table system for city planning, including sand table body 1, hall sensor 2 and permanent magnet 3, hall sensor 2 is established on control panel 4, control panel 4 sets up in one side of sand table body 1, control panel 4 can move along sand table body 1 edge, control panel 4 keeps away from one side on ground and has seted up holding tank 41, permanent magnet 3 is arranged in holding tank 41, the staff also can be according to actual demand with permanent magnet 3 change into other can cause hall sensor 2 week side magnetic field change, and can make hall sensor 2 magnetic object of circular telegram; the sand table body 1 is provided with a plurality of groups of indicating lamps LED connected in parallel, and the Hall sensor 2 enables the indicating lamps LED to be lightened through the driving circuit.

Sand table body 1 is provided with slide rail 11 along its edge, and control panel 4 slides in one side of keeping away from holding tank 41 and connects slide rail 11, and the show guide personnel can move around sand table body 1 usually when the object of sand table body 1 is demonstrateed towards the viewer, and at this moment, the show guide personnel can make control panel 4 along slide rail 11 together remove.

Referring to fig. 1 and 2, a connecting wire 12 between the hall sensor 2 and the indicator light LED rotates synchronously with the rotation of the control panel 4, one end of the connecting wire 12 between the hall sensor 2 and the indicator light LED, which is far away from the indicator light LED, is wrapped in the same insulating layer 121, one end of the insulating layer 121 is located in the middle of the sand table body 1, and the other end of the insulating layer is in signal connection with the hall sensor 2.

Referring to fig. 3 and 4, a comparison circuit 5, a driving circuit and a voltage follower circuit 7 are connected between the hall sensor 2 and the indicator light LED in signal mode, the comparison circuit 5 includes a comparator U1, a positive input terminal of a comparator U1 receives an output signal of the hall sensor 2, a negative input terminal of a comparator U1 inputs a reference signal Vref, and an output terminal of a comparator U1 is connected with the indicator light LED in signal mode.

The drive circuit comprises an inverting amplification circuit 6 and an inverter N1, wherein the negative phase input end of the inverting amplification circuit 6 is electrically connected with the output end of the comparison circuit 5, the positive phase input end of the inverting amplification circuit 6 is grounded, and the output end of the inverting amplification circuit 6 is electrically connected with the inverter N1; a first resistor R1 is electrically connected between the comparison circuit 5 and the inverting amplification circuit 6, and the other end of the first resistor R1 is grounded.

A variable resistor Rh and a balance resistor Rp are electrically connected between the positive phase input end of the inverting amplifying circuit 6 and the ground and are used for balancing the input resistance, meanwhile, the variable resistor Rh is convenient for workers to adjust the resistance value of the positive phase input end of the inverting amplifying circuit 6, the balance resistor Rp is used for preventing the resistance value of the positive phase input end of the inverting amplifying circuit 6 from becoming zero, and a resistor RF is arranged in a feedback network of the inverting amplifying circuit 6.

The voltage follower circuit 7 comprises an integrated chip U2, the non-inverting input end of the integrated chip U2 inputs the output signal of the inverter N1, the inverting input end of the integrated chip U2 is electrically connected with the output end of the integrated chip U2, and the output end of the integrated chip U2 is in signal connection with one end of the indicator light LED.

Referring to fig. 3 and 5, one end of the indicator light LED away from the hall sensor 2 is in signal connection with a delay circuit 8, the delay circuit 8 includes a 555 time-base circuit, a pin 5 of the 555 time-base circuit is electrically connected with a cathode of a diode VD1, an anode of the diode VD1, a pin 4 and a pin 5 of the 555 time-base circuit are all connected with VCC, a pin 6, a pin 7 and a pin 2 of the 555 time-base circuit are simultaneously electrically connected with a resistor Rt, the other end of the resistor Rt is connected with VCC, a pin 2 of the 555 time-base circuit is also electrically connected with a resistor R10, the other end of the resistor R10 is VCC, a pin 2 of the 555 time-base circuit is simultaneously electrically connected with a patch capacitor Ct, the other end of the patch capacitor Ct is grounded, a pin 1 of the 555 time-base circuit is grounded, a pin 3 of the 555 time-base circuit.

And circuit structures such as a comparison circuit 5, an inverting amplification circuit 6, an inverter N1 and a voltage follower circuit 7 between the Hall sensor 2 and the indicator light LED are all arranged in the sand table body 1.

The implementation principle of the embodiment is as follows: when the display guide personnel need to guide the watching personnel to watch a specific object on the sand table body 1, the display guide personnel approach the permanent magnet 3 to the Hall sensor 2, when the permanent magnet 3 approaches the Hall sensor 2, the Hall sensor 2 outputs a signal, so that a loop is electrified, and the signal sequentially passes through the comparison circuit 5, the inverting amplification circuit 6, the phase inverter N1 and the voltage follower circuit 7, so that a plurality of groups of indicator light LEDs are triggered to be lighted; in the process, the indicator light LED is adopted, the light of the indicator light LED is more suitable for being watched by human eyes, and the potential safety hazard can be effectively reduced; and the indicator light LED can be lighted only after the Hall sensor 2 is influenced by the magnetic field of the magnetic objects such as the permanent magnet 3 and the like and is conducted, so that the resources can be saved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a photoelectric sand table system of city planning, includes sand table body (1), its characterized in that: still include hall sensor (2) and permanent magnet (3), hall sensor (2) are established on control panel (4), control panel (4) set up one side of sand table body (1), control panel (4) can be followed sand table body (1) edge removal, holding tank (41) have been seted up to one side that ground was kept away from in control panel (4), permanent magnet (3) are arranged in holding tank (41), sand table body (1) is provided with the parallelly connected pilot lamp LED of multiunit, hall sensor (2) with signal connection has drive circuit between the pilot lamp LED.

2. The city planning photoelectric sand table system according to claim 1, wherein: the sand table is characterized in that a sliding rail (11) is arranged on the sand table body (1) along the edge of the sand table body, and one side, away from the accommodating groove (41), of the control disc (4) is connected with the sliding rail (11) in a sliding mode.

3. The city planning photoelectric sand table system according to claim 1, wherein: and a connecting wire (12) between the Hall sensor (2) and the indicator light LED synchronously rotates along with the rotation of the control panel (4).

4. The city planning photoelectric sand table system according to claim 3, wherein: hall sensor (2) with connecting wire (12) between the pilot lamp LED are kept away from the one end cladding of pilot lamp LED is in same insulating layer (121), just insulating layer (121) one end is located the middle part of sand table body (1), other end signal connection Hall sensor (2).

5. The city planning photoelectric sand table system according to claim 1, wherein: the signal connection has a comparison circuit (5) between hall sensor (2) and the pilot lamp LED, comparison circuit (5) include comparator U1, the output signal of hall sensor (2) is received to the normal phase input of comparator U1, reference signal Vref is input to the inverting input of comparator U1, the output signal connection of comparator U1 the pilot lamp LED.

6. The city planning photoelectric sand table system according to claim 5, wherein: the driving circuit comprises an inverting amplifying circuit (6) and an inverter N1, and is positioned between the comparison circuit (5) and the indicator LED, the negative phase input end of the inverting amplifying circuit (6) is electrically connected with the output end of the comparison circuit (5), the non-inverting input end of the inverting amplifying circuit (6) is grounded, and the output end of the inverting amplifying circuit (6) is electrically connected with the inverter N1; a first resistor R1 is electrically connected between the comparison circuit (5) and the inverting amplification circuit (6), and the other end of the first resistor R1 is grounded.

7. The city planning photoelectric sand table system according to claim 6, wherein: the signal connection has voltage follower circuit (7) between the phase inverter N1 and the pilot lamp LED, voltage follower circuit (7) include integrated chip U2, the normal phase input of integrated chip U2 inputs the output signal of phase inverter N1, the inverting input electricity of integrated chip U2 connects the output of integrated chip U2, the output signal connection of integrated chip U2 the one end of pilot lamp LED.

8. The city planning photoelectric sand table system according to claim 1, wherein: one end of the indicator light LED far away from the Hall sensor (2) is connected with a delay circuit (8) through a signal, the delay circuit (8) comprises a 555 time base circuit, a pin 5 of the 555 time base circuit is electrically connected with a cathode of a diode VD1, the anode of the diode VD1, the pin 4 and the pin 5 of the 555 time-base circuit are all connected with VCC, the pin 6, the pin 7 and the pin 2 of the 555 time base circuit are simultaneously electrically connected with a resistor Rt, the other end of the resistor Rt is connected with VCC, pin 2 of the 555 time base circuit is also electrically connected with a resistor R10, the other end of the resistor R10 is connected with VCC, the pin 2 of the 555 time-base circuit is electrically connected with a patch capacitor Ct at the same time, the other end of the patch capacitor Ct is grounded, the pin 1 of the 555 time-base circuit is grounded, the pin 3 of the 555 time-base circuit is electrically connected with the cathode of the diode VD2 and the ground, and the anode of the diode VD2 is grounded.