CN1519784A - Multiple optical axises photoelectric sensor - Google Patents
Multiple optical axises photoelectric sensor Download PDFInfo
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Abstract
The multiple beam axis photoelectric sensor is provided with a beam emitter 1 equipped with two or more beam emitting elements 11a-11l and with a beam receiver 2 equipped with two and more beam receiving elements 21a-21l each of which constitutes a channel respectively in a pair with its counterpart in beam emitting elements 11a-11l, performing detection operation one by one for each channel based on whether or not the beam from each of emitting element 11a-11l is received by each of receiving element 21a-21l in the same channel. Optional channels among the two or more channels are designated by an external console 30 and also the designation is memorized to a memory 25A, therefore, a CPU 25 on the beam receiving side overrides, for only a predetermined period, beam receiving signals of the receiving elements 21a-21l consisting of the channels designated by the external console, based on the control signal which is input from an external control circuit through an input port 27.
Description
Technical field
The present invention relates to by a plurality of throwings, be subjected to optical mechanism to form the multi-beam photoelectric sensor of a plurality of channels.
Background technology
Multi-beam photoelectric sensor, the periphery of the press in being located at production line for example is disposed at and forbids the hazardous location that the operator enters and allow boundary between the safety zone that the operator enters.In this multi-beam photoelectric sensor, have the light projector of a plurality of light-projecting components and relatively be provided with corresponding to the light-receiving device that each light-projecting component has a plurality of photo detectors, thus, constitute channel by corresponding light-projecting component and photo detector.The light-projecting component that is provided with in this light projector light projector according to the rules regularly, carry out the light projector action successively, according to from these light-projecting components form channels photo detector be subjected to light signal, detect the shading of channel, detect the inside that the operator enters into the hazardous location thus.Detecting the occasion that the operator enters into the hazardous location, the situation according to from the multi-beam photoelectric sensor output signal stops such as production line.
But therefore, owing to flow through workpiece successively on the production line, whenever these workpiece channel when the hazardous location is shifted in the safety zone can be blocked, and all detect shading, thereby production line stops in this multi-beam photoelectric sensor side at every turn.Thus, in order to eliminate such rough sledding, the noise elimination function is set on multi-beam photoelectric sensor.
The noise elimination function is meant the function that temporarily makes shading detect ineffective treatment, in above-mentioned formation, near multi-beam photoelectric sensor, be provided with the approaching noise elimination sensor that detects workpiece, and, the light signal that is subjected to from whole photo detectors is carried out ineffective treatment from receiving detection signal from this noise elimination sensor through till the stipulated time.In addition, according to the situation by external control device control multi-beam photoelectric sensor, whether decision brings into play the noise elimination function.
By such function is set, can not detect in the time of between workpiece is by two zones and be shading, therefore, can avoid the rough sledding that production line stops when workpiece blocks channel.
But, be that the light signal that is subjected to whole photo detectors carries out ineffective treatment in the above-described configuration, therefore, for example if exist not by the channel of workpiece shading, then when shading detects being disabled, enter the hazardous location, can not detect this situation even people's hand etc. cross this channel.
On the other hand, disclose the multi-beam photoelectric sensor that can shading can be detected ineffective treatment (with reference to the flat 2001-71192 document of TOHKEMY) to channel arbitrarily, if to utilizing controller to treat that the channel of ineffective treatment carries out selection operation, then before utilizing controller releasing ineffective treatment once more, continue to carry out ineffective treatment.In this formation, the channel that can only cross workpiece carry out the ineffective treatment that shading detects, but do not have workpiece during can not carry out shading in this channel and detect, therefore, even operator's hand etc. crosses this channel and enters the hazardous location, can not detect this situation.
Summary of the invention
The present invention is based on aforesaid situation and finishes, and its purpose is to provide a kind of multi-beam photoelectric sensor, and it can carry out the random time ineffective treatment to the light signal that is subjected to from any photo detector.
According to the present invention, the stipulated time ineffective treatment is carried out in the detection action of channel arbitrarily, therefore can only during necessity, carry out ineffective treatment to the channel of necessity.Thus, needed originally can to prevent from the rough sledding that is subjected to being disabled of light signal of the channel that shading detects and in the time that needs shading to detect the rough sledding of being disabled of detection action of channel.
Description of drawings
Fig. 1 is the oblique view of the multi-beam photoelectric sensor of embodiment 1;
Fig. 2 is the vertical view of the multi-beam photoelectric sensor of embodiment 1;
Fig. 3 is the circuit composition diagram of throwing, light-receiving device;
Fig. 4 for expression be stored in the storer control signal and with the table of the relation of the corresponding interchannel of this control signal;
Fig. 5 is the vertical view of the multi-beam photoelectric sensor formation of expression embodiment 2;
Fig. 6 is the oblique view of the multi-beam photoelectric sensor formation of expression embodiment 3;
Fig. 7 is the front elevation of multi-beam photoelectric sensor;
Fig. 8 is the circuit composition diagram of throwing, light-receiving device;
Fig. 9 for expression be stored in the storer control signal and with the table of the relation of the corresponding interchannel of this control signal.
Embodiment
Embodiment 1
Below in conjunction with Fig. 1 to 4, the embodiment 1 of multi-beam photoelectric sensor of the present invention is described.As shown in Figures 1 and 2, near the press of the multi-beam photoelectric sensor of present embodiment in being arranged at production line, be arranged at and forbid hazardous location D that the operator enters and allow boundary between the safety zone that the operator enters.
This multi-beam photoelectric sensor constitutes with light projector 1 (light projector unit) state relative with light-receiving device 2 (light receiving unit), such as, it has the optical axis of 12 channels.In this light projector 1 on the face relative with light-receiving device 2, (the amounting to 12) light-projecting component 11a～11l that disposes 1 on each channel is configured to a row at above-below direction, on the relative face of light-receiving device 2 and light projector 1, the photo detector 21a～21l paired with light-projecting component 11a～11l is configured to a row at above-below direction equally.In addition, 3 light projectors 1 and 3 light-receiving devices 2 are set respectively, they are configured to the コ font according to three mode in the hazardous location D of rectangle, workpiece W cross each light projector 1 and light-receiving device 2 optical axis turnover hazardous location D inside and outside.In addition, in order to distinguish each light projector 1 and light-receiving device 2, in Fig. 1, the light projector of figure right side of face and light-receiving device are represented by 1A, 2A that respectively middle light projector and light-receiving device are represented by 1B, 2B that respectively the light projector in left side and light-receiving device are represented by 1C, 2C respectively.
Fig. 3 represents the circuit composition of the multi-beam photoelectric sensor of present embodiment.In this light projector 1, be provided with the driving circuit 12a～12l that is used to make light-projecting component 11a～11l starting, in case receive signal, then supply with drive current to light-projecting component 11a～11l from light projector side CPU13.The sensitive side CPU25 (be equivalent to " ineffective treatment mechanism ", " time movement ") of light projector side CPU13 from be arranged at light-receiving device 2 described later receives light projector timing signal St.
This light projector timing signal St is the pulse signal of specified period, and it is generated by sensitive side CPU25, so that determine the starting timing of light-projecting component 11a～11l.In 1 cycle (length T) of this light projector timing signal St, 12 pulses equally spaced produce with time ta, after the 12nd time pulse produces, are provided with the stopping period tb of the specified length longer than time ta.Thus, 12 light projector scanning motions that light-projecting component 11a～11l starts from top to bottom successively repeat in each period T.
On the other hand, in light-receiving device 2, be respectively arranged with image intensifer 22a～221 that amplified with the amplification coefficient of stipulating by light signal from photo detector 21a～21l.Pass through analog switch 23a～23l from the light signal that is subjected to of photo-detector amplifier 22a～22l output, focus on shared signal wire, be input in the comparer 24.If this is subjected to light signal greater than the reference value that is set in this comparer 24, then the detection signal Sd of incident light is input among the sensitive side CPU25, detects the situation of incident light.
Sensitive side CPU25 produces with the consistent shading of cycle of above-mentioned light projector timing signal St and phase place and detects timing signal, detect timing signal according to this shading, to be used to make each analog switch 23a～23l to be in the gate control signal of conducting state, send analog switch 23l to from analog switch 23a successively, to be input in the comparer 24 from the light signal that is subjected to of each photo detector 21a～21l.So when output shading when detecting timing signal, each light-projecting component 11a～11l is in starting state, thus,, carries out shading and detect according to having or not of the incident light detection signal of comparer 24.
In addition, in sensitive side CPU25, be provided with input/output port 26A and the 26B and the input port 27A～27C (being equivalent to " input mechanism ") of input/output signal, wherein, this input/ output port 26A and 26B constitute can with other the input/output port 26A and the 26B of light-receiving device 2, or external device (ED) (specifically, external control platform 30) connection, each input port 27A～27C also constitutes the control signal that can import from external device (ED).
In the present embodiment, each light-receiving device 2A, 2B, 2C connects respectively, the input/output port 26A of light-receiving device 2A (26B) is connected with the input/output port 26A (26B) of light-receiving device 2B, in addition, the input/output port 26A of light-receiving device 2B (26B) is connected with input/output port 26A (26B) among the light-receiving device 2C.In addition, be connected with control desk 30 described later on the light-receiving device 2A, the input/output port 26A (26B) of this light-receiving device 2C goes up to embed terminal cover.If as above connect, each light-receiving device 2A then, 2B, 2C set address digit in the moment of energized successively from the light-receiving device 2 near external control platform 30.Specifically, at first, in light-receiving device 2A, set address digit " 1 ", then, in light-receiving device 2B, set address digit " 2 ", last, in light-receiving device 2C, set address digit " 3 ".Then, among the storer 25A in being arranged at the sensitive side CPU25 of each light-receiving device 2A～2C (being equivalent to " storing mechanism "), store corresponding address digit.
The external control platform 30 (being equivalent to " set mechanism ") that is connected with input/output port 26A (26B), its constitute can import the address digit of specifying each light-receiving device 2A～2C and with the corresponding channel number of this address digit, if after these have been imported, determine operation, then address digit and channel number can be sent to light-receiving device 2A as setting signal.
When the sensitive side CPU25 of each light-receiving device 2A～2C receives setting signal,,, then read its latter linked channel signal, and this channel number is stored among the storer 25A if be judged to be specifying oneself with reference to the address digit that is contained in this signal.On the other hand, when the address number is not consistent, setting signal is transferred to next light-receiving device 2 from input/output port 26A (26B).
In each light-receiving device 2A～2C,,, be subjected to the light signal ineffective treatment from the photo detector 21 that constitutes channel among the storer 25A with being stored in according to this control signal in the occasion that has received from the control signal of the external unit that is connected with input port 27A (27B).Here, so-called " ineffective treatment " is meant by 24 pairs of signals of having imported of comparer and judges whether to be in the shading state.
The formation of present embodiment is described its action as mentioned above below.In the present embodiment, at first the direction from arrow A is sent to hazardous location D with workpiece W, processes operation in the inside of this hazardous location D, sends workpiece after process finishing in the direction of arrow C.Then, workpiece is sent in the D of hazardous location, processes operation, along the arrow C direction workpiece is sent then in the inside of this hazardous location D along arrow B.In addition, on the input port 27A of each light-receiving device 2A～2C, be connected with signal wire respectively from the control circuit of press, thus but input control signal.In addition, the optical axis that workpiece blocked is 9～12 channels at each throwing, light-receiving device.
At first, utilize external control platform assigned address number " 1 " and channel number 9～12, address digit " 2 " and channel number 9～12, address digit " 3 " and channel number 9～12, thereby determine operation.So, in light-receiving device 2A～2C, channel number 9～12 is stored in respectively among the storer 25A.
Production line is in case running, then export control signal to light-receiving device 2A from control circuit, thus, sensitive side CPU25 carries out ineffective treatment to the light signal that is subjected to from the photo detector 21i～21l that constitutes channel number 9～12 that is stored among the storer 25A during input control signal.In case workpiece crosses optical axis and sends into hazardous location D during being subjected to being disabled of light signal, then the output from the control signal of control circuit stops, channel 9～12 be subjected to light signal by validation from photo detector 21i～21l.Processing in the D of hazardous location is in case finish, then from control circuit to light-receiving device 2C output control signal, thus, light-receiving device 2C makes and is subjected to the light signal ineffective treatment from the photo detector 21i～21l that constitutes channel 9～12.When workpiece W region D out of danger, the output of control signal stops, and the photo detector 21i～21l of channel 9～12 is subjected to light signal by validation.Then, transmit control signal to light-receiving device 2B from control circuit, thus, come self-forming channel 9～12 photo detector 21i～21l be subjected to being disabled of light signal, in case finish to sending into of hazardous location D, then the output of control signal stops, and the photo detector 21i～21l of channel 9～12 is subjected to light signal once more by validation.In addition, when when hazardous location D sends workpiece, as mentioned above, control signal sends to light-receiving device 2C, come self-forming channel 9～12 photo detector 21i～21l be subjected to being disabled of light signal.
In addition, control signal from control circuit sends to each light-receiving device 2A～2C respectively in the above-described configuration, only transmit control signal but also for example can constitute, by input/output port 26A (26B), export control signal to light-receiving device 2B and 2C from light-receiving device 2A to light-receiving device 2A.In such formation, also can be as shown in Figure 4, with the control signal that is input among each input port 27A～27C of light-receiving device 2A～2C, address digit with the light-receiving device 2A～2C that answers ineffective treatment, be used to be stored in advance among the storer 25A from the setting signal of external control platform 30, and, address digit and control signal are transferred to each light-receiving device 2B, 2C (with reference to Fig. 4) corresponding to control signal corresponding.
In addition, except will be to the corresponding mode that is stored in storer 25 of the control signal of input port 27A～27C input with the light-receiving device 2A～2C that treats ineffective treatment, also can be such as any one or 2 inputs among input port 27A～27C control signal from control circuit, with the input wherein the various control signal (such as, can pass through pulse height, pulse row's etc. combination and the signal discerned) corresponding with the light-receiving device 2A～2C that treats ineffective treatment.
Here, the pattern of the control signal described in the present invention is meant the pattern that is input to the control signal among each input port 27A～27C, also refers to be input to the pattern of the various control signal among input port 27A～27C.
In addition, be to constitute during input is from the control signal of control circuit in the present embodiment, each channel is carried out ineffective treatment, but also can constitute the ineffective treatment between regularly of the laggard professional etiquette of input control signal for example, in addition, can also constitute and be provided with during the maximum ineffective treatment, when the input of control signal between this restricted period is finished, finish ineffective treatment constantly at this, or finish ineffective treatment in the occasion of having spent the maximum ineffective treatment time.
As mentioned above, in the present embodiment, owing to have a plurality of light projectors 1, peripheral operation platform 30 only uses 1 setting of carrying out the ineffective treatment of each light-receiving device 2 in the time of light-receiving device 2, therefore can seek the miniaturization of device.In addition, because the channel of ineffective treatment is answered in appointment in advance in the present embodiment and with its storage, the operation that the Therefore, omited is set one by one can improve operating efficiency.And, in constituting, will treat present embodiment that the channel of ineffective treatment is stored, therefore automatically export control signal from control circuit, and be a kind of formation of carrying out ineffective treatment control automatically that is applicable to.
Below with reference to Fig. 5 embodiments of the invention 2 are described, the part identical with the 1st embodiment marks same label omission and is repeated in this description, and also omits the description to same effect and effect simultaneously.
In the present embodiment, detect the transmission-type photoelectric sensor 4A of the shading that causes because of workpiece W, 4B (being equivalent to " external unit ", " external sensor ") is arranged at the place ahead (the safety zone side opposite with hazardous location D) of light-receiving device 2A and 2B, the output line of these photoelectric sensors 4 and each light-receiving device 2A, the input port 27 of 2B connects.In addition, if light-receiving device 2A and 2B receive from corresponding photoelectric sensor 4A, the detection signal of 4B then carries out the stipulated time ineffective treatment to the light signal that is subjected to from the photo detector 11a～11l that constitutes channel that is stored among the storer 25A, and control signal is exported to light-receiving device 2C.This light-receiving device 2C is behind input signal, and through after the stipulated time, the light signal that is subjected to photo detector 21a～21l of being stored in the formation channel among the storer 25A carries out ineffective treatment specified time limit.Above-mentioned " stipulated time through after " be meant, such as from photoelectric sensor 4A, begin after the 4B output detection signal, the time till the processing operation in the D of hazardous location is finished.
In addition, in order to prevent the phase mutual interference, the light-projecting portion of light projector 2 and photoelectric sensor 4 is crisscross arranged.
Identical with above-mentioned the 1st embodiment, at first, utilize photoelectric sensor 4A to carry out shading and detect when when the direction of arrow A is sent workpiece into the inside of hazardous location D, detection signal is input among the light-receiving device 2A.So, the light signal that is subjected to light-receiving device 21a～21l carries out the stipulated time ineffective treatment.Thus, workpiece W crosses the inside that optical axis is sent into hazardous location D.Then, in case finish the processing operation, then light-receiving device 2C carries out the stipulated time ineffective treatment to the light signal that is subjected to of photo detector 21a～21l.On the other hand, equally, utilize photoelectric sensor 4B to carry out shading and detect, thus when arrow B is sent to the inside of hazardous location D with workpiece W, the light signal that is subjected to of photo detector 21a～21l of light-receiving device 2B is carried out the stipulated time ineffective treatment, and workpiece W is sent to the inside of hazardous location D.When the processing end of job, when sending workpiece W in the direction of arrow C, the light signal that is subjected to of the photo detector 21a～21l by light-receiving device 2C is carried out the stipulated time ineffective treatment, and workpiece is passed out to outside the D of hazardous location.
As mentioned above in the present embodiment,, carry out the ineffective treatment control of a plurality of light-receiving devices 2,, can seek the simplicity of the miniaturization and the wiring of device so can reduce the quantity of photoelectric sensor 4 (external device (ED)) owing to detection signal according to 1 photoelectric sensor.
In addition, in above-mentioned scheme, light-receiving device 2C can be according to from light-receiving device 2A, the control signal that 2B passes on, the light signal that is subjected to from the photo detector 21a～21l of body is carried out ineffective treatment, but also can photoelectric sensor 4C be set, carry out ineffective treatment according to its detection signal in hazardous location D side.
Embodiment 3
Below with reference to Fig. 6 to Fig. 9 embodiments of the invention 3 are described, the part identical with embodiment 1 marks same label and omits and be repeated in this description, and also omits the description to same effect and effect simultaneously.
In the present embodiment, vertically be stacked to 3 layers transport and flow through workpiece W on the line (not shown) respectively, corresponding workpiece W is sent into hazardous location D respectively.Light projector 1 is arranged on the both sides of transporting line with light-receiving device 2 and becomes 1 group, and (with the safety zone side of hazardous location D opposition side) longitudinally is provided with 3 groups of photoelectric sensor 4A～4C with predetermined distance in its place ahead.The optical axis of the photoelectric sensor 4A of top layer is positioned at the 2nd and the 3rd interchannel of light projector 1 and light-receiving device 2, and the optical axis of the photoelectric sensor 4B in middle layer is positioned at the 6th and the 7th interchannel, and the optical axis of the photoelectric sensor 4C of bottom is positioned at the 10th and the 11st interchannel.In addition, the workpiece W of top layer crosses the channel 1～4 of light projector 1 and light-receiving device 2, and the workpiece W in middle layer crosses channel 5～8, and the workpiece W of bottom crosses channel 9～12 (with reference to Fig. 6 (A), Fig. 7).
The signal wire of the photoelectric sensor 4A of top layer is connected with input port 27A, and the signal wire of the photoelectric sensor 4B in middle layer is connected with input port 27B, and the signal wire of the photoelectric sensor 4C of bottom is connected (with reference to Fig. 8) with input port 27C.
Externally in the control desk 30, set address digit " 1 ", carry out simultaneously to the input of the signal of input port 27A and channel 1～4, at the signal input of input port 27B and channel 5～9, to signal input and the corresponding setting of channel 10～14 difference of input port 27C, and determine to operate.
If sensitive side CPU25 receives the setting signal from external control platform 30, then make the signal of input port 27A corresponding with channel 1～4, also make the signal of input port 27B corresponding, and they are stored among the storer 25A with signal and the channel 10～14 of channel 5～9, input port 27C.In addition, if input from the detection signal of photoelectric sensor 4A～4C, is then carried out ineffective treatment (with reference to Fig. 9) to the received signal corresponding to the photo detector 21a～21l of the formation channel of stipulated time.
Such as, according to top layer, middle level, the then order of the bottom occasion of transporting workpiece W, successively to the photoelectric sensor 4A of top layer, the photoelectric sensor 4B in middle layer, and the order output detection signal of the photoelectric sensor 4C of bottom is (with reference to Fig. 6 (B), in sensitive side CPU25, according to above-mentioned order, with 1～4 channel, 5～9 channels, then the order of 10～14 channels is carried out the ineffective treatment that is subjected to light signal (detection signal of each input port 27A～27C is equivalent to " pattern of control signal " of the present invention) of photo detector 21a～21l successively.Obviously, when sending into workpiece W, corresponding to this being disabled of sequential channels, such as when sending into a plurality of workpiece W in the D of hazardous location simultaneously, corresponding to being disabled of channel in these a plurality of zones according to the order beyond above-mentioned.
According to the above embodiments, channel and the detection signal corresponding with it that to desire ineffective treatment in advance are stored in the storing mechanism, in the occasion of desiring ineffective treatment, will import from photoelectric sensor with the corresponding control signal of this channel, therefore, can automatically carry out ineffective treatment control to each channel.
Embodiment 4
From embodiment 3, removed photoelectric sensor 4 constituting of present embodiment, in corresponding input port 27A～27C, input is from the control signal (control signal to each input port 27A～27C input is equivalent to " pattern of control signal " of the present invention) of the control circuit of press.
Such as, the order of sending into workpiece W is the occasion of top layer, middle layer, bottom, according to input port 27A, 27B, the order of 27C is from the control circuit input control signal, thus, according to being disabled of order of 1～4 channel, 5～9 channels, 10～14 channels.In addition, in the order according to other, the occasion in input port 27A～27C input control signal is corresponding to its each being disabled of optical axis of order.
Other embodiment
The present invention is not limited to according to top description with by the embodiment of description of drawings, such as, following such embodiment is also contained in the technical scope of the present invention, in addition, also can in the scope that does not break away from main points, carry out implementing the present invention after the various changes beyond same following.
(1) in the foregoing description 1,2 for each light-receiving device is carried out the formation of ineffective treatment, but also can carry out the formation of ineffective treatment to the regulation optical axis in each light-receiving device.
(2) use transmission-type as light projector 1 and light-receiving device 2 in the above-described embodiments, but also can use reflection-type.
(3) in addition, provided in the above-described embodiments the light signal that is subjected to from photo detector 21a～21l has been carried out the formation of ineffective treatment, but it constitutes also can be such as the light signal that is subjected to from photo detector 21a～21l is carried out ineffective treatment, stops the formation with the light projector action of their corresponding light-projecting component 21a～21l simultaneously.
(4) provided the formation that set mechanism adopts external control platform 30 in the above-described embodiments, but it constitutes also can be such as setting operation portion being arranged in light-receiving device or the light projector either party, thereby answers the setting operation of the channel of ineffective treatment on light projector and light-receiving device main body.
(5) in addition, be to utilize input port 27A～27C to carry out the judgement of a plurality of control signals in the above-described embodiments, but for example also can judge a plurality of control signals according to the pattern (difference of pulse height etc.) of control signal.
(6) also have, provided the formation that 3 input ports 27 are set in light-receiving device 2A～2C, but also can be the formation that the input port 27 below 2 or more than 4 for example is set.
Claims (50)
1. multi-beam photoelectric sensor, possess the light projector that is provided with a plurality of light projector mechanism and be provided with a plurality of light-receiving devices that are subjected to optical mechanism that form channel respectively with above-mentioned each light projector mechanism in pairs, according to from the above-mentioned light signal that is subjected to that is subjected to optical mechanism, each channel is detected action successively, it is characterized in that this multi-beam photoelectric sensor possesses:
Channel setting mechanism, this channel setting mechanism specify above-mentioned a plurality of channel arbitrarily that is subjected in the optical mechanism;
Input mechanism, this input mechanism input is from the control signal of outside;
Ineffective treatment mechanism, this ineffective treatment mechanism be according to the situation of the above-mentioned control signal of input in above-mentioned input mechanism, only at the appointed time to from carrying out ineffective treatment by the above-mentioned detection action of above-mentioned channel setting mechanism channel appointed.
2. multi-beam photoelectric sensor according to claim 1 is characterized in that:
Above-mentioned light projector possesses a plurality of light projector unit that are made of a plurality of above-mentioned light projector mechanism;
Above-mentioned light-receiving device comprises a plurality of light receiving units, and this light receiving unit and above-mentioned light projector unit are provided with in pairs, and has a plurality of optical mechanisms that are subjected to.
3. multi-beam photoelectric sensor according to claim 2 is characterized in that: above-mentioned a plurality of light projectors unit or a plurality of light receiving unit are respectively by flexible cable series connection.
4. according to any one the described multi-beam photoelectric sensor in the claim 1 to 3, it is characterized in that: above-mentioned channel setting mechanism can specify simultaneously and be subjected to the corresponding whole channels of optical mechanism arbitrarily;
Above-mentioned ineffective treatment mechanism carries out ineffective treatment to the detection action of the whole channels that are subjected to optical mechanism that utilize above-mentioned channel setting mechanism and set.
5. according to any one the described multi-beam photoelectric sensor in the claim 1 to 3, it is characterized in that: above-mentioned ineffective treatment mechanism, with time of the above-mentioned control signal of input in above-mentioned input mechanism as the afore mentioned rules time, ineffective treatment is carried out in above-mentioned detection action.
6. multi-beam photoelectric sensor according to claim 4 is characterized in that: above-mentioned ineffective treatment mechanism, with time of the above-mentioned control signal of input in above-mentioned input mechanism as the afore mentioned rules time, ineffective treatment is carried out in above-mentioned detection action.
7. according to any one the described multi-beam photoelectric sensor in the claim 1 to 3, it is characterized in that: it possesses time movement, and this time movement carries out timing to the time of importing above-mentioned control signal and rising;
Above-mentioned ineffective treatment mechanism begins to by till the above-mentioned time movement timing afore mentioned rules time ineffective treatment to be carried out in above-mentioned detection action from importing above-mentioned control signal.
8. multi-beam photoelectric sensor according to claim 4 is characterized in that:
It possesses time movement, and this time movement carries out timing to the time of importing above-mentioned control signal and rising;
Above-mentioned ineffective treatment mechanism begins ineffective treatment to be carried out in above-mentioned detection action to state the stipulated time by above-mentioned time movement timing till from importing above-mentioned control signal.
9. according to any one the described multi-beam photoelectric sensor in the claim 1 to 3, it is characterized in that: it possesses time movement, and this time movement carries out timing to the time of importing above-mentioned control signal and rising;
Above-mentioned ineffective treatment mechanism is a condition to import above-mentioned control signal, begin ineffective treatment to above-mentioned detection action, simultaneously utilize above-mentioned time movement not timing to pass through the afore mentioned rules time during in, the interrupted occasion of above-mentioned control signal, or passing through the occasion of afore mentioned rules time, finish the ineffective treatment of above-mentioned detection action.
10. multi-beam photoelectric sensor according to claim 4 is characterized in that:
It possesses time movement, and this time movement carries out timing to the time of importing above-mentioned control signal and rising;
Above-mentioned ineffective treatment mechanism is a condition to import above-mentioned control signal, begin ineffective treatment to above-mentioned detection action, simultaneously utilize above-mentioned time movement not timing to pass through the afore mentioned rules time during in, the interrupted occasion of above-mentioned control signal, or passing through the occasion of afore mentioned rules time, finish the ineffective treatment of above-mentioned detection action.
11. any one the described multi-beam photoelectric sensor according in the claim 1 to 3 is characterized in that:
It possesses storing mechanism, and this storing mechanism is corresponding with the information relevant with the channel of answering ineffective treatment with the pattern that is input to the control signal in the above-mentioned input mechanism, and it is stored;
Above-mentioned ineffective treatment mechanism reads the information relevant with the channel of answering ineffective treatment according to the pattern that is input to the control signal in the above-mentioned input mechanism from storing mechanism, and according to this information this detections is moved and to carry out ineffective treatment.
12. multi-beam photoelectric sensor according to claim 4 is characterized in that:
It possesses storing mechanism, and this storing mechanism is corresponding with the information relevant with the channel of answering ineffective treatment with the pattern that is input to the control signal in the above-mentioned input mechanism, and it is stored;
Above-mentioned ineffective treatment mechanism reads the information relevant with the channel of answering ineffective treatment according to the pattern that is input to the control signal in the above-mentioned input mechanism from storing mechanism, and according to this information this detections is moved and to carry out ineffective treatment.
13. multi-beam photoelectric sensor according to claim 5 is characterized in that:
It possesses storing mechanism, and this storing mechanism is corresponding with the information relevant with the channel of answering ineffective treatment with the pattern that is input to the control signal in the above-mentioned input mechanism, and it is stored;
Above-mentioned ineffective treatment mechanism reads the information relevant with the channel of answering ineffective treatment according to the pattern that is input to the control signal in the above-mentioned input mechanism from storing mechanism, and according to this information this detections is moved and to carry out ineffective treatment.
14. multi-beam photoelectric sensor according to claim 6 is characterized in that:
It possesses storing mechanism, and this storing mechanism is corresponding with the information relevant with the channel of answering ineffective treatment with the pattern that is input to the control signal in the above-mentioned input mechanism, and it is stored;
Above-mentioned ineffective treatment mechanism reads the information relevant with the channel of answering ineffective treatment according to the pattern that is input to the control signal in the above-mentioned input mechanism from storing mechanism, and according to this information this detections is moved and to carry out ineffective treatment.
15. multi-beam photoelectric sensor according to claim 7 is characterized in that:
It possesses storing mechanism, and this storing mechanism is corresponding with the information relevant with the channel of answering ineffective treatment with the pattern that is input to the control signal in the above-mentioned input mechanism, and it is stored;
Above-mentioned ineffective treatment mechanism reads the information relevant with the channel of answering ineffective treatment according to the pattern that is input to the control signal in the above-mentioned input mechanism from storing mechanism, and according to this information this detections is moved and to carry out ineffective treatment.
16. multi-beam photoelectric sensor according to claim 8 is characterized in that:
It possesses storing mechanism, and this storing mechanism is corresponding with the information relevant with the channel of answering ineffective treatment with the pattern that is input to the control signal in the above-mentioned input mechanism, and it is stored;
Above-mentioned ineffective treatment mechanism reads the information relevant with the channel of answering ineffective treatment according to the pattern that is input to the control signal in the above-mentioned input mechanism from storing mechanism, and according to this information this detections is moved and to carry out ineffective treatment.
17. multi-beam photoelectric sensor according to claim 9 is characterized in that:
It possesses storing mechanism, and this storing mechanism is corresponding with the information relevant with the channel of answering ineffective treatment with the pattern that is input to the control signal in the above-mentioned input mechanism, and it is stored;
Above-mentioned ineffective treatment mechanism reads the information relevant with the channel of answering ineffective treatment according to the pattern that is input to the control signal in the above-mentioned input mechanism from storing mechanism, and according to this information this detections is moved and to carry out ineffective treatment.
18. multi-beam photoelectric sensor according to claim 10 is characterized in that:
It possesses storing mechanism, and this storing mechanism is corresponding with the information relevant with the channel of answering ineffective treatment with the pattern that is input to the control signal in the above-mentioned input mechanism, and it is stored;
Above-mentioned ineffective treatment mechanism reads the information relevant with the channel of answering ineffective treatment according to the pattern that is input to the control signal in the above-mentioned input mechanism from storing mechanism, and according to this information this detections is moved and to carry out ineffective treatment.
19. multi-beam photoelectric sensor according to claim 11 is characterized in that: in the information relevant, comprise and the relevant information of order of each channel being carried out ineffective treatment with the above-mentioned channel that should carry out ineffective treatment.
20. multi-beam photoelectric sensor according to claim 12 is characterized in that: in the information relevant, comprise and the relevant information of order of each channel being carried out ineffective treatment with the above-mentioned channel that should carry out ineffective treatment.
21. multi-beam photoelectric sensor according to claim 13 is characterized in that: in the information relevant, comprise and the relevant information of order of each channel being carried out ineffective treatment with the above-mentioned channel that should carry out ineffective treatment.
22. multi-beam photoelectric sensor according to claim 14 is characterized in that: in the information relevant, comprise and the relevant information of order of each channel being carried out ineffective treatment with the above-mentioned channel that should carry out ineffective treatment.
23. multi-beam photoelectric sensor according to claim 15 is characterized in that: in the information relevant, comprise and the relevant information of order of each channel being carried out ineffective treatment with the above-mentioned channel that should carry out ineffective treatment.
24. multi-beam photoelectric sensor according to claim 16 is characterized in that: in the information relevant, comprise and the relevant information of order of each channel being carried out ineffective treatment with the above-mentioned channel that should carry out ineffective treatment.
25. multi-beam photoelectric sensor according to claim 17 is characterized in that: in the information relevant, comprise and the relevant information of order of each channel being carried out ineffective treatment with the above-mentioned channel that should carry out ineffective treatment.
26. multi-beam photoelectric sensor according to claim 18 is characterized in that: in the information relevant, comprise and the relevant information of order of each channel being carried out ineffective treatment with the above-mentioned channel that should carry out ineffective treatment.
27., it is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input according to claim 1 or 2 or 3 described multi-beam photoelectric sensors.
28. multi-beam photoelectric sensor according to claim 4 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
29. multi-beam photoelectric sensor according to claim 5 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
30. multi-beam photoelectric sensor according to claim 6 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
31. multi-beam photoelectric sensor according to claim 7 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
32. multi-beam photoelectric sensor according to claim 8 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
33. multi-beam photoelectric sensor according to claim 9 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
34. multi-beam photoelectric sensor according to claim 10 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
35. multi-beam photoelectric sensor according to claim 11 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
36. multi-beam photoelectric sensor according to claim 12 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
37. multi-beam photoelectric sensor according to claim 13 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
38. multi-beam photoelectric sensor according to claim 14 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
39. multi-beam photoelectric sensor according to claim 15 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
40. multi-beam photoelectric sensor according to claim 16 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
41. multi-beam photoelectric sensor according to claim 17 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
42. multi-beam photoelectric sensor according to claim 18 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
43. multi-beam photoelectric sensor according to claim 19 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
44. multi-beam photoelectric sensor according to claim 20 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
45. multi-beam photoelectric sensor according to claim 21 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
46. multi-beam photoelectric sensor according to claim 22 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
47. multi-beam photoelectric sensor according to claim 23 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
48. multi-beam photoelectric sensor according to claim 24 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
49. multi-beam photoelectric sensor according to claim 25 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
50. multi-beam photoelectric sensor according to claim 26 is characterized in that: in above-mentioned input mechanism, detect the detection signal of the external sensor of detected material as above-mentioned control signal input.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2003025004 | 2003-01-31 | ||
| JP2003025004A JP4544566B2 (en) | 2003-01-31 | 2003-01-31 | Multi-axis photoelectric sensor |
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| CN100444207C CN100444207C (en) | 2008-12-17 |
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| JP (1) | JP4544566B2 (en) |
| CN (1) | CN100444207C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105021215A (en) * | 2014-04-18 | 2015-11-04 | 欧姆龙株式会社 | Multiple optical axis photoelectric sensor |
| CN108398151A (en) * | 2017-02-08 | 2018-08-14 | 欧姆龙株式会社 | Sensor control and sensing system |
| CN109070168A (en) * | 2016-04-14 | 2018-12-21 | 株式会社天田控股集团 | The safety device of bending machine and the control method of bending machine |
| CN111095465A (en) * | 2017-11-27 | 2020-05-01 | 欧姆龙株式会社 | Multi-optical axis photoelectric sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007222979A (en) * | 2006-02-22 | 2007-09-06 | Sunx Ltd | Multi-optical axis photoelectric sensor and article passage detection system |
| JP2007235408A (en) * | 2006-02-28 | 2007-09-13 | Keyence Corp | Multi-optical axis photoelectric safety device and control method thereof |
| JP4979518B2 (en) * | 2007-09-05 | 2012-07-18 | 株式会社キーエンス | Intrusion detection device |
| JP5276377B2 (en) * | 2008-07-31 | 2013-08-28 | パナソニック デバイスＳｕｎｘ株式会社 | Multi-optical axis photoelectric sensor and multi-optical axis photoelectric sensor controller |
| JP5248301B2 (en) * | 2008-12-25 | 2013-07-31 | パナソニック デバイスＳｕｎｘ株式会社 | Multi-optical axis photoelectric sensor and object detection system |
| JP5229392B2 (en) * | 2009-08-31 | 2013-07-03 | オムロン株式会社 | Safety management system using multi-optical axis photoelectric sensor and multi-optical axis photoelectric sensor |
| JP6022991B2 (en) * | 2013-04-23 | 2016-11-09 | 日本オートマチックマシン株式会社 | press |
| DE112020004874T5 (en) * | 2019-10-11 | 2022-07-21 | Panasonic Intellectual Property Management Co., Ltd. | Container moving device and element feeding device |
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| JPH0232399U (en) * | 1988-08-25 | 1990-02-28 | ||
| JP2712043B2 (en) * | 1989-04-10 | 1998-02-10 | 株式会社小森安全機研究所 | Beam safety device for machine tools |
| US5243183A (en) * | 1992-09-15 | 1993-09-07 | Triad Controls, Inc. | Obstruction position detecting system with comparison and memory means |
| DE4422497C2 (en) * | 1994-06-28 | 1996-06-05 | Leuze Electronic Gmbh & Co | Device and method for optoelectronic detection of objects |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105021215A (en) * | 2014-04-18 | 2015-11-04 | 欧姆龙株式会社 | Multiple optical axis photoelectric sensor |
| CN105021215B (en) * | 2014-04-18 | 2017-06-16 | 欧姆龙株式会社 | Multi-beam photoelectric sensor |
| EP2933662B1 (en) | 2014-04-18 | 2019-04-10 | Omron Corporation | Multiple optical axis photoelectric sensor |
| CN109070168A (en) * | 2016-04-14 | 2018-12-21 | 株式会社天田控股集团 | The safety device of bending machine and the control method of bending machine |
| CN109070168B (en) * | 2016-04-14 | 2019-08-23 | 株式会社天田控股集团 | The safety device of bending machine |
| CN108398151A (en) * | 2017-02-08 | 2018-08-14 | 欧姆龙株式会社 | Sensor control and sensing system |
| US10705248B2 (en) | 2017-02-08 | 2020-07-07 | Omron Corporation | Periodic light projecting sensor control device and sensor system ensuring mutual interference does not occur |
| CN111095465A (en) * | 2017-11-27 | 2020-05-01 | 欧姆龙株式会社 | Multi-optical axis photoelectric sensor |
| US11162838B2 (en) | 2017-11-27 | 2021-11-02 | Omron Corporation | Multiple-optical axis photoelectric sensor |
| CN111095465B (en) * | 2017-11-27 | 2022-04-12 | 欧姆龙株式会社 | Multi-optical axis photoelectric sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100444207C (en) | 2008-12-17 |
| JP2004230455A (en) | 2004-08-19 |
| JP4544566B2 (en) | 2010-09-15 |
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