Q:I need to ask access control one machine control sensor door, why will there be sensor door terminal with a voltage? One group is 12v a group is 24v

Single door access control machine automatic door use: single door access control machine Whether it is simple card is still a single door attendance access control system, wiring method, find the access control machine +12 V and PUSH terminal, the two terminal leads to Relay power input, and then the relay output signal terminals where the NO and COM two leads connected to the automatic door sensor signal line input terminal, then access control one machine and automatic doors can be linked, and the external relay more Reliable and safe. For example: a customer requirements automatic door access in the working hours 8: 00-18: 00 people one to the door, automatic doors automatically open, non-working hours, need a legitimate person to open the card door. Implementation: automatic doors do not change before , The door outside the infrared sensor head has four lines connected to the automatic door control department, which has two power lines to the infrared sensor head power supply, do not move them.The other two are the switch signal line, cut off one, cut off, one access Controller COM, a head of the access control controller NO, (note: COM side not to +12.) And the above method of the first method used in parallel, you can meet the customer required time control. If the settings are completed, the following exception: the automatic door opened half of the immediately closed, or closed half and opened. ???Access control controller type access control automatic sensor door, the realization of the method: a single door bi-directional access control controller as an example, the access controller relay output COM and NO connected to the automatic door sensor signal input terminal, if COM is connected Power, please remove in advance, this must pay attention. 51 Forum contains a large number of security knowledge of the literature for reference, I hope my answer to your question to help ~

Q:The basic principle, block diagram and main control circuit diagram of automatic gating system

Is a motor positive and negative circuit. There are human body sensor switch control, when people approached, triggering conduction, the motor is handed, people leave a certain distance from the automatic motor reverse closing. Work flow is as follows: induction detector detects someone to enter, the pulse signal to the master, the master to inform the motor after the operation to determine, while monitoring the motor speed, in order to inform the motor in a certain time afterburner and into the slow running The The motor is given a certain running current to do the positive run, the power transmitted to the timing belt, and then by the timing belt will be passed to the spreader system so that the automatic sensor door open; automatic sensor door is opened by the controller to make judgments, Induction door, inform the motor for reverse movement, turn off the automatic sensor door There are also home automatic doors,

Q:its like there is no visible door but when you step on a pressure plate thats placed in front of a wooden wall the wall comes apart, like the automatic doors into supermarkets

Hope this helps!

Q:The front passenger side automatic door lock on my Camry recently stopped working. The only way to lock or unlock this door is by either inserting the key from outside or by manually locking/unlocking it from inside. The auto remote won't do it and it won't lock/unlock automatically when the car is started or stopped like the other doors do. Is this something I can try to fix myself, or do I need to take it to the shop?

You can fix anything yourself if your willing to learn new things. This is actually one of two things, and pretty easy to tell which. First take the door panel off. You will see a couple relays inside. At least one will be for your door locks, probably two. See if they click when you try to lock and unlock the door. My hunch is they will. If they do, then you have to find the solenoid that physically locks the door. You will need to measure the voltage on the wires going to it. If you can't get 12 volts on any of the wires when you lock/unlock the doors, then the problem is likely a relay. But I suspect all will be ok with the voltages, and the solenoid wont move. In that case the solenoid must be replaced.

Q:Why does the automatic door adopt a parallelogram?

The quadrilateral does not have stability. In contrast to the triangle, the triangle has a stability, with the triangle to do automatic doors, the door can not move, and can not open or not off.

Q:Where is the speed of the automatic door?

LZ attention can basically be able to debug the national standards which are on the request is not the so-called "high-end machine can be"

Q:What is the benefit of the revolving door?

The In fact, the advantages of revolving door, but a lot of the following I would like to briefly introduce. First of all, the revolving door is different from the ordinary door in the plane structure, but the use of three-dimensional, visually gives the feeling of beauty. In addition to this, many people will doubt its confinement. This is that you are too worried that the revolving door is always kept in a closed state, with good confinement because it opens with the off state that is present at the same time. Revolving door of the dual state of the same time, but also to the revolving door another advantage, that is, energy saving. Rotary door design concept is to save energy from the structure and state of the perfect solution to the problem of energy saving. Of course, the revolving door is a significant feature is completely integrated with the interior decoration, people impeccable.

Q:On the principle of induction of automatic doors No matter what kind of object as long as it is moving, it can be sensed to, if it is still it can not be sensed!

Automatic door sensor, probe is the eyes of the automatic door control system, sensor sensors through the induction sensor to the pedestrian or moving objects, this signal into a passive dry contact short-circuit signal transmission to the automatic door controller, in order to achieve automatic door open . Automatic door sensor classification: common sensor according to the principle is divided into two categories, one for the microwave sensor, one for the infrared sensor. According to the sensor distance can be divided into: convenience store popular sensors, long distance sensors. According to the appearance and installation location is divided into: conventional sensors, ceiling sensors, etc. Microwave sensor principle: based on a unique microwave transmission technology, the ultra-thin antenna can achieve a variety of spectrum;

Q:Automatic door motor is not connected to the controller directly connected to the power how to access

Black line connected to the negative red line can be a positive pole

Q:History of revolving doors

In Italy in the 1920s, several wings were made, and the wings were designed to swing in both directions. Later, a Swedish revolving door manufacturer has introduced a new two-wing door, they added the original design on the basis of the motor and the booth. There were also three wing doors and four wing doors. Three-wing revolving door in the airport and the hotel has been very common, smaller doors for hand luggage through the diameter of 4.2 ~ 5.4m revolving door more convenient luggage cart access. Four-wing door of the use of higher performance, the flow of people through the larger. A diameter of 2m four-wing revolving door at 10r / min speed, people in the normal walking speed, each hour can be two-way through 10X4X60 = 2400 (person). Four-wing revolving door is the most widely used in office buildings and hotels. Five wing door has not been developed, there is no market. In the original patent proposed two special purpose of the design: one is the door to move to the side; the other is "break out" ring strong. These designs are already very popular before today's folding doors are popular. The door side of the mobile and folding combination of the door, so that the opening of the revolving door increased by nearly 50%, in order to ensure that the building in a fire, the revolving door is still as a fast access to the building, to ensure that the danger The personnel can escape from the building, the door of the revolving door is designed to be foldable, so that each individual door when the pressure, in the opposite direction of rotation to release or rotate an angle to form a channel. Many countries or regions in the world have included this performance requirement in safety regulations.