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add greater and greater or equal modes to RBE bandgap mode

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Dave Conway-Jones 2017-04-14 21:38:42 +01:00
parent fc249b6792
commit 774bc50589
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GPG Key ID: 81B04231572A9A2D
5 changed files with 122 additions and 34 deletions
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6
function/rbe/locales/en-US/rbe.json
View File

@ -11,8 +11,10 @@
},
"opts": {
"rbe": "block unless value changes",
"deadband": "block unless value changes by more than",
"narrowband": "block if value changes by more than",
"deadband": "block unless value change is greater than",
"deadbandEq": "block unless value change is greater or equal to",
"narrowband": "block if value change is greater than",
"narrowbandEq": "block if value change is greater or equal to",
"in": "compared to last input value",
"out": "compared to last valid output value"
},

2
function/rbe/package.json
View File

@ -1,6 +1,6 @@
{
"name" : "node-red-node-rbe",
"version" : "0.1.6",
"version" : "0.1.8",
"description" : "A Node-RED node that provides report-by-exception (RBE) and deadband capability.",
"dependencies" : {
},

48
function/rbe/rbe.html
View File

@ -4,14 +4,16 @@
<label for="node-input-func"><i class="fa fa-wrench"></i> <span data-i18n="rbe.label.func"></span></label>
<select type="text" id="node-input-func" style="width:74%;">
<option value="rbe" data-i18n="rbe.opts.rbe"></option>
<option value="deadbandEq" data-i18n="rbe.opts.deadbandEq"></option>
<option value="deadband" data-i18n="rbe.opts.deadband"></option>
<option value="narrowbandEq" data-i18n="rbe.opts.narrowbandEq"></option>
<option value="narrowband" data-i18n="rbe.opts.narrowband"></option>
</select>
</div>
<div class="form-row" id="node-bandgap">
<label for="node-input-gap">&nbsp;</label>
<input type="text" id="node-input-gap" data-i18n="[placeholder]rbe.placeholder.bandgap" style="width:70px;">
<select type="text" id="node-input-inout" style="width:55%;">
<input type="text" id="node-input-gap" data-i18n="[placeholder]rbe.placeholder.bandgap" style="width:95px;">
<select type="text" id="node-input-inout" style="width:54%;">
<option value="out" data-i18n="rbe.opts.out"></option>
<option value="in" data-i18n="rbe.opts.in"></option>
</select>
@ -27,21 +29,38 @@
</script>
<script type="text/x-red" data-help-name="rbe">
<p>Report by Exception node - only passes on data if it has changed.</p>
<p>The node can either block until the <code>msg.payload</code> is
different to the previous one - <b>rbe</b> mode. This works on numbers, strings, and simple objects.</p>
<p>Or it can block until the value changes by a specified amount - <b>deadband</b> mode.</p>
<p>In deadband mode the incoming payload must contain a parseable <i>number</i> and is
output only if greater than + or - the <i>band gap</i> away from a previous value.</p>
<p>Report by Exception node - only passes on data if the payload has changed.</p>
<p>It can also block until the value changes by a specified amount - deadband modes.</p>
<h3>Inputs</h3>
<dl class="message-properties">
<dt>payload
<span class="property-type">number | string | (object)</span>
</dt>
<dd>RBE mode will accept numbers, strings, and simple objects. Other modes must provide a parseable number.</dd>
<dt class="optional">topic <span class="property-type">string</span>
</dt>
<dd>if specified the function will work on a per topic basis.</dd>
</dl>
<h3>Outputs</h3>
<dl class="message-properties">
<dt>payload
<span class="property-type">as per input</span>
</dt>
<dd>If triggered the output will be the same as the input.</dd>
</dl>
<h3>Details</h3>
<p>In RBE mode this node will block until the <code>msg.payload</code> is
different to the previous one. </p>
<p>In Deadband modes the incoming payload must contain a parseable number and is
output only if greater than + or - the band gap away from a previous value.</p>
<p>Deadband also supports % - only sends if the input differs by more than x% of the original value.</p>
<p>It can also ignore outlier values - <b>narrowband</b> mode.</p>
<p>In narrowband mode the incoming payload is blocked if it is more than + or - the band gap
<p>In Narrowband mode the incoming payload is blocked if it is more than + or - the band gap
away from the previous value. Useful for ignoring outliers from a faulty sensor for example.</p>
<p>Both Deadband and Narrowband allow comparison against either the <i>previous valid output value</i>, thus
ignoring any values out of range; or the <i>previous input value</i>, which resets the set point, thus allowing
<p>Both Deadband and Narrowband allow comparison against either the previous valid output value, thus
ignoring any values out of range; or the previous input value, which resets the set point, thus allowing
gradual drift (deadband), or a step change (narrowband).</p>
<p><b>Note:</b> This works on a per <code>msg.topic</code> basis. This means that a single rbe node can
handle multiple topics at the same time.</p>
handle multiple different topics at the same time.</p>
</script>
<script type="text/javascript">
@ -59,7 +78,8 @@
outputs:1,
icon: "rbe.png",
label: function() {
return this.name||this.func||"rbe";
var ll = (this.func||"").replace("Eq","")||"rbe";
return this.name||ll||"rbe";
},
labelStyle: function() {
return this.name?"node_label_italic":"";

16
function/rbe/rbe.js
View File

@ -42,15 +42,23 @@ module.exports = function(RED) {
else { node.previous[t] = node.start; }
}
if (node.pc) { node.gap = (node.previous[t] * node.g / 100) || 0; }
if (!node.previous.hasOwnProperty(t)) { node.previous[t] = n - node.gap; }
if (Math.abs(n - node.previous[t]) >= node.gap) {
else { node.gap = Number(node.gap); }
if ((node.previous[t] === undefined) && (node.func === "narrowbandEq")) { node.previous[t] = n; }
if (node.previous[t] === undefined) { node.previous[t] = n - node.gap; }
if (Math.abs(n - node.previous[t]) === node.gap) {
if (this.func === "deadbandEq") {
if (node.inout === "out") { node.previous[t] = n; }
node.send(msg);
}
}
else if (Math.abs(n - node.previous[t]) > node.gap) {
if (this.func === "deadband") {
if (node.inout === "out") { node.previous[t] = n; }
node.send(msg);
}
}
else {
if (this.func === "narrowband") {
else if (Math.abs(n - node.previous[t]) < node.gap) {
if ((this.func === "narrowband")||(this.func === "narrowbandEq")) {
if (node.inout === "out") { node.previous[t] = n; }
node.send(msg);
}

84
test/function/rbe/rbe_spec.js
View File

@ -62,6 +62,37 @@ describe('rbe node', function() {
});
});
it('should only send output if x away from original value (deadbandEq)', function(done) {
var flow = [{"id":"n1", "type":"rbe", func:"deadbandEq", gap:"10", inout:"out", wires:[["n2"]] },
{id:"n2", type:"helper"} ];
helper.load(testNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
var c = 0;
n2.on("input", function(msg) {
c = c + 1;
if (c === 1) {
msg.should.have.a.property("payload", 0);
}
else if (c === 2) {
msg.should.have.a.property("payload", 10);
}
else if (c == 3) {
msg.should.have.a.property("payload", 20);
done();
}
});
n1.emit("input", {payload:0});
n1.emit("input", {payload:2});
n1.emit("input", {payload:4});
n1.emit("input", {payload:6});
n1.emit("input", {payload:8});
n1.emit("input", {payload:10});
n1.emit("input", {payload:15});
n1.emit("input", {payload:20});
});
});
it('should only send output if more than x away from original value (deadband)', function(done) {
var flow = [{"id":"n1", "type":"rbe", func:"deadband", gap:"10", wires:[["n2"]] },
{id:"n2", type:"helper"} ];
@ -70,17 +101,18 @@ describe('rbe node', function() {
var n2 = helper.getNode("n2");
var c = 0;
n2.on("input", function(msg) {
if (c === 0) {
c = c + 1;
//console.log(c,msg);
if (c === 1) {
msg.should.have.a.property("payload", 0);
}
else if (c === 1) {
else if (c === 2) {
msg.should.have.a.property("payload", 20);
}
else {
msg.should.have.a.property("payload", "5 deg");
done();
}
c += 1;
});
n1.emit("input", {payload:0});
n1.emit("input", {payload:2});
@ -101,24 +133,21 @@ describe('rbe node', function() {
var n2 = helper.getNode("n2");
var c = 0;
n2.on("input", function(msg) {
if (c === 0) {
msg.should.have.a.property("payload", 100);
}
else if (c === 1) {
c = c + 1;
if (c === 1) {
msg.should.have.a.property("payload", 120);
}
else {
msg.should.have.a.property("payload", 132);
else if (c === 2) {
msg.should.have.a.property("payload", 135);
done();
}
c += 1;
});
n1.emit("input", {payload:100});
n1.emit("input", {payload:95});
n1.emit("input", {payload:105});
n1.emit("input", {payload:120});
n1.emit("input", {payload:130});
n1.emit("input", {payload:132});
n1.emit("input", {payload:135});
});
});
@ -150,6 +179,36 @@ describe('rbe node', function() {
});
});
it('should not send output if x away or greater from original value (narrowbandEq)', function(done) {
var flow = [{"id":"n1", "type":"rbe", func:"narrowbandEq", gap:"10", inout:"out", wires:[["n2"]] },
{id:"n2", type:"helper"} ];
helper.load(testNode, flow, function() {
var n1 = helper.getNode("n1");
var n2 = helper.getNode("n2");
var c = 0;
n2.on("input", function(msg) {
c = c + 1;
//console.log(c,msg);
if (c === 1) {
msg.should.have.a.property("payload", 0);
}
else if (c === 2) {
msg.should.have.a.property("payload", 5);
}
else if (c === 3) {
msg.should.have.a.property("payload", 10);
done();
}
});
n1.emit("input", {payload:0});
n1.emit("input", {payload:10});
n1.emit("input", {payload:5});
n1.emit("input", {payload:15});
n1.emit("input", {payload:10});
n1.emit("input", {payload:20});
n1.emit("input", {payload:25});
});
});
it('should not send output if more than x away from original value (narrowband)', function(done) {
var flow = [{"id":"n1", "type":"rbe", func:"narrowband", gap:"10", wires:[["n2"]] },
@ -182,7 +241,7 @@ describe('rbe node', function() {
});
});
it('should not send output if more than x away from original value (narrowband in step mode)', function(done) {
it('should not send output if more than x away from original value (narrowband in step mode)', function(done) {
var flow = [{"id":"n1", "type":"rbe", func:"narrowband", gap:"10", inout:"in", start:"500", wires:[["n2"]] },
{id:"n2", type:"helper"} ];
helper.load(testNode, flow, function() {
@ -205,5 +264,4 @@ describe('rbe node', function() {
n1.emit("input", {payload:205});
});
});
});